ML5-12 – 12V 5AH Chamberlain 41A6357-1 Garage Door Opener Battery

(732 customer reviews)

From: $17.99

ML5-12 – 12V 5AH Chamberlain 41A6357-1 Garage Door Opener Battery

SKU: ML5-122311 Category:
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$ 17.99
$ 28.99
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Delivering power when you need it, the Mighty Max ML5-12 12 Volt 5 AH uses a state of the art, heavy-duty, calcium-alloy grid that provides exceptional performance and service life in both float and cyclic applications.
The ML5-12 is an Absorbent Glass Mat (AGM) technology with a valve regulated design, that can be used in enclosed and indoor environments without leaking or maintenance, providing a superior performance for thousands of models.
Mighty Max SLA batteries are utilized in a wide variety of applications including; Consumer Electronics, Electric Vehicles, Engine Starters, Golf Carts, Hunting, Lawn and Garden Tools, Medical Mobility, Motorcycles, Power sports, Portable Tools, Solar, Toys and Hobby, Access Control Devices, Emergency Lighting, Security and more.
Specifications: 
Voltage: 12 Volt
Amperage: 5 AH
Chemistry: SLA, AGM
Terminal: F1
Battery Dimensions: 
3.58 in x 2.76 in x 4.21 in
Weight: 3.09 Lbs
Warranty 1 Year
Multi Packs Bundled Savings

12 Pack, 1 Pack, 2 Pack, 3 Pack, 4 Pack, 6 Pack, 9 Pack

Volts

12V

Amp Hour

5Ah

Chemistry

SLA / AGM

Quantity

1

Length

3.58

Width

2.76

Height

4.21

Weight

3.09 Lbs

Warranty

1 Year

732 reviews for ML5-12 – 12V 5AH Chamberlain 41A6357-1 Garage Door Opener Battery

  1. JT

    Perfect fit, easy to install and good price.

  2. Karen

    Exact size and easy install

  3. Web Customer

    Fits like a glove

  4. William Portzline

    Haven’t had it long enough to rate longevity

  5. Bama714

    Item was offered at a competitive price. Packaging was sufficient and allowed an immediate, very easy installation. Total installation time was less than 5 minutes.

  6. Lorrie Lindsey

    Just what I needed and at a fair price

  7. Ralph G.

    This is the second one I have bought First one lasted about 5 years

  8. Elizabeth A.

    It was a very simple replacement of my dead chamberlain myQ battery. I spend the compartment – pulled the old one out and disconnected the wires and slid the new battery in and connected the wires and all worked great!

  9. Frank Kotroba

    Replaced backup battery on my Chamberlain garage door opener with Bluetooth. One of my best upgrades.

  10. Alan Bell

    In the past – I just removed the dead battery from my garage door opener when they went bad. But this was cheap enough that it was worth getting and replacing. Now my garage door opener is fully functional again – so that’s nice. It was easy to install. Hopefully it lasts.

  11. Steve C.

    Same size Chamberlin one, that originally lasted 6 years. Has a little higher capacity. Easy install.

  12. Robert R.

    Good price, quick shipping and easy installation because of correct size. Can’t comment on longevity cause I just installed battery.

  13. Nermal

    Super easy to install, way cheaper than chamberlain’s OEM replacement battery.

  14. Gabe

    Works as soon as it was installed. No issues with battery

  15. mario grepo

    None

  16. Elizabeth A

    This was our second purchase of this garage door replacement battery. They are easy to install and last a decent amout of time

  17. marikup

    Great product that was easy to install Liked it so much, I told everyone about it.

  18. JDray

    Easy to install, arrived on time, finally the garage opener stopped that awful beeping every 10 seconds.

  19. peggy talbert

    Won’t know on longevity but it seems well made and was easy to replace the old one! For the money it seems like a perfect fit. ????????

  20. Sarah Kern

    This battery was very easy to install and saved me money. Thanks!

  21. Bob K.

    This was my second time purchasing this battery and like others the life is approximately 2 years +. Mine lasted 2 1/2 years almost to the date. The value seems to be there when you compare it to the Chamberlin replacement.

  22. Raph Kamner

    Bought to replace the battery for my garage door opened. Works perfectly.

  23. Joe

    Pulled out the old, popped in the new. Good to go.

  24. Soul Eater

    This battery was used to replace my aging battery on my Chamberlain B1381 Garage door opener. It is an exact replacement, just as easy to install as the OEM battery it replaced and it was much cheaper than a Chamberlain branded battery. Longevity? Don’t know. I just installed it.

  25. Albert L Pitts

    It doesn’t happen often but when the power goes out and you need to access your garage, it’s ready. This is my second replacement battery for this operator. It lasted 3 1/2 years and during that time the price went up $2. I really like that the operator let’s me know when the battery is ready to be replaced.

  26. E. Louise Diefenback

    My garage door was beeping, my son installed the battery & it is working great.

  27. Kirk Mays

    Easy to install, works great

  28. JK

    Needed replacement, worked well

  29. Terri Charison

    Decent price and it is working well. Just put it in so not sure how long it will last

  30. Guy C.

    Great product. Easy install. Would definitely but again.

  31. momo

    Just right. Easy to install. Perfect fit.

  32. Mitch C.

    This battery was a replacement for the same battery. It seems to last about 2 years before failing to charge.

  33. N. Xu

    easy to install

  34. David L Wallace

    it works

  35. GAC

    So far so good. Only extended use will tell for sure.

  36. Anthony

    X

  37. Sahba

    Arrived on time and worked as expected.

  38. Christine Dodson

    There’s not much to say. The battery is what I needed and works perfectly! I’m just glad the beeping is over since I changed the battery

  39. Jorge

    Battery was perfect fit for a Chamberlain opener. And I must say that customer service experience was excellent, I needed to contact them because the USPS was showing that my order was delivered in my mailbox but it never happened. So that’s when I needed to contact customer service and after I explain what it happened they have no hesitation on sending a replacement wish I needed so badly. I recommend this company they are trustworthy, they respond and resolve my situation. So far the battery is working as expected. I recommend this company a 100%.

  40. David S

    We have a 10 yr old garage door opener, when the battery gets weak it’s reminds us to change it out. thanks to mighty max battery it should last longer then stock.

  41. Rob Andrews

    This item was easy to install and fast shipping.

  42. Web Customer

    Was as described

  43. Dave C.

    Purchased this battery for my Chamberlain garage door opener in December 2017. The backup battery just started beeping in late September 2021. Close to 4 years out of a backup battery is not too shabby. Lasted about the same as the OEM battery did.

  44. Jason

    This review is of my previous purchase, which was back in 2016. Very impressed with how long this lasted, as you can see from the pictures, it lasted a little over 5 years. This is used in my garage door opener as a battery backup. The 2016 version was made in China, this new one in 2021 was made in Thailand, so we will see how the new one holds up.

  45. Ticks review

    Perfect fit, easy to install and the specs are correct.

  46. glenna bright

    Yet TBD how long it will last

  47. Breda E.Heinz

    Garage door

  48. Dee M.

    Battery is used for garage door opener.

  49. Billy W

    Product was well packaged and hookup was a breeze

  50. Dale H. Reichert

    Reordered this battery again. Last one died on me, but I know you cannot expect more than 7 years for it’s life. Lead acid batteries last only appx. 4 years. Easy to swap batteries and if I lose power again, I know it will work fine. That is, if this happens within the batteries useful life.

  51. Marsha Lawson

    When the battery in my garage door opener kept beeping I called a repair man that said it probably just needed charging. After my own research I found out it needed to be replaced. Found this replacement and it’s been working great.

  52. Connie

    Easy to install

  53. Ed Holm

    Like that it works as advertised

  54. Don

    This battery was used in a garage door opener. It was a good fit and easy to install. Works great. It was just installed so I don’t know about longevity.

  55. Jerry

    Quick shipping and easy installation.

  56. City Suburban Man

    This is a great garage door opener battery at half the price of the original.

  57. Bruce Bushner

    Great product and price.

  58. lora hunt

    Perfect match to the old battery.

  59. Tom

    This works as described is a great replacement for my chamberlain garage door opener. I would recommend

  60. Koskoman

    I bought this as a replacement for the old battery in my Chamberlain garage door opener. Swapping this battery out for the old took just a couple of minutes and was very easy.

  61. Caran Smith

    Got here fast and easy to install!

  62. P. Michael Lutz

    It was easy to install

  63. Ken

    Works great to open my garage door

  64. David F.

    Works great

  65. Jromon

    Decent battery, used for one year now and still going strong

  66. Doug

    as a direct replacement for my chamberlain battery backup this battery fit and worked perfectly

  67. Stephen Kushnir

    This fit perfectly and is working fine! No way to check for longevity.

  68. LOACH

    Excellent replacement for the original battery.

  69. rick segelson

    Works great

  70. Cherie Compton

    garage door opener

  71. Michael Moore

    If you discover your garage door opener suddenly beeping every couple minutes or so, it’s most likely this backup battery failing. This product does the trick and installation should be easy. No more beeping.

  72. livetoread_readtolive

    I bought this battery to replace the one in my battery backup for my computer – the dimensions stated were exactly the same as the battery I was replacing, so I ordered with confidence. To my surprise, the dimensions of the battery I received were larger than stated in the product ad. When installed in the original direction (terminals up) I could not fully close the case of the back-up – it was simply too high by almost a cm. I was able to change the orientation, laying the battery down and could fully close the case, but the battery is a bit loose, because this is the smallest dimension. Received dimensions were 9.6 cm x 7.7 cm and 11.5 cm. Otherwise, it seems to work OK, and I am satisfied with my work-around. Good price.

  73. William Thorpe

    Very easy to install and a perfect replacement for the original battery

  74. Jack White

    Replaced a bad battery in my garage door opener. Works great in a power outage.

  75. mobaxter

    We received the item quickly and in perfect condition. My husband installed it without any issues at all. It has been in for about a month and it has been working perfectly so far. And it was half the cost of the OEM battery. Extremely happy with this purchase.

  76. JIK

    Good fit for the security system with GE panel.

  77. Paul H.

    This was the best replacement battery I could find, and the price was right! I would definitely purchase again if needed.

  78. LK

    Seems to be a direct replacement for the OEM Battery.

  79. Rongxanh

    This was a great product

  80. john hornsby

    Great product works great. good value.

  81. Web Customer

    Battery was used for my garage door opener and it fit just perfect and was way cheaper than going with the chamberlain brand. So far it has worked just how it is suppose to!

  82. Holly Hall-Reed

    This battery is just what I needed to get my garage door back to work.

  83. Lynne Campbell

    Fits perfect into the Chamberlain garage door opener. Who knew one even existed. The original packaged battery (backup) to the electronics lasted 5 years so I hope this one does too.

  84. sharon morris

    So far so good. Using in my Garage door opener.

  85. Chezvanna

    Work as its design intention, Can’t comment about the longevity. Time will tell. Last replacement battery was OEM (Chamberlain) and it last about 5 yrs 4 months. Will see. Easy to install and works as expected.

  86. Jim

    Battery lasted 17 months. I got a few years out of the original battery. Only real good thing I can say is you get it in one day. Guess you can expect too much for $15.

  87. D.S.

    This is my second time getting this battery. The previous one lasted about 2 year and this one is good so far. The package came way too late, more than a week late…

  88. MB mom

    I installed this battery in my Chamberlain garage door opener in Dec 2018 and now in Jan 2021 it’s beeping with the red light illuminated, meaning I need to replace it. We use our garage door as the primary means of coming in and going out, but I don’t believe the battery is ever used since we never lose electricity. I think this means it’s rechargeable for about 2 years and then dies. I have no idea what the lifespan should be, but prior to this battery we had the original Chamberlain-provided battery and it lasted 4 years. Just providing this info as data points.

  89. Kermit Woodall

    When my Chamberlain garage door opener started beeping I was expecting to pay a lot to replace it’s battery. Nope! This was affordable and an easy swap.

  90. Joseph Block

    Was an easy replacement (one screw for the battery door) for the battery in my garage door opener. After charging it, it was able to open and close the garage door (though a little slower than when on mains power) successfully.

  91. Mike

    …very easy to install! Thanks!

  92. Nancy A.

    Good value. I use this product as a battery back up for my garage door opener and replace it every three years. I think it’s dropped in price since I ordered the first one a few years ago.

  93. Craig

    Positive tab on battery didn’t match size of mating clip wire end. Seemed to lift door slower than old battery. Unknown on battery life at this time.

  94. rjcapp01

    I can’t rate the longevity, as I’ve only had it a couple weeks at this point. However, at least initially, this is a great value 12V backup battery. Fits fine in my Chamberlain garage door opener. The battery terminals are slightly smaller than those on the Chamberlain branded battery, but the leads still connected securely so it wasn’t an issue.

  95. Hammer

    It fit and works.

  96. peggy harwood

    Garage door

  97. Web Customer

    Durable and powerful

  98. Robert Phillips

    it works

  99. donna moran

    Very good product and real easy to install

  100. Smithers

    Just installed into a garage door opener, I won’t know more for several years. Packaging was very good and so was speed of delivery. So far, a very good value.

  101. Web Customer K.L.

    This is my third battery for my chamberlain opener. Last battery was not exactly the right size and was nearly impossible to extract. This one fits nicely and has provided the back-up power needed.

  102. Hector B.

    Again…what do you say about a battery – it works and I’m happy

  103. Nestico

    Arrived quickly and packaged very well. It replaced a back up battery for my garage door opener. The last battery lasted 4 years. That has been the average life span in my experience. I hope to get that much from this battery. Only time will tell how long this battery will last but I have had good luck with this brand.

  104. CM

    Fit perfectly in my garage door opener

  105. ATx_HuNT3R

    IF you’re looking to save money, and want the quality, STOP LOOKING!! This is IT. Great Replacement, at a fraction of the cost.

  106. ais914

    Fits and seems to have resolved the beeping!

  107. P.E. Bethke

    Super easy to install.

  108. BBG

    Perfect fix for garage door opener.

  109. Hamlet

    I bought this battery to replace my Chamberlain garage door battery that lasted 2 years. It was easy to install and has lasted well.

  110. Daniel Poulin

    Great replacement for liftmaster garage door opener.

  111. KC

    Easy replacement for my garage door battery. Great to know the garage door will open in a power fail situation.

  112. Steve G.

    Awesome price, product and seller, got it earlier than expected.

  113. Sarah

    So I bought it because my old battery died and the alarm system kept going off As you can see in the pic, it looks a bit different than the previous battery, but it does the same job. It took care of the alarm problem

  114. Markpr73

    It was easy to remove the old battery to check the correct item number, and real easy to install this new battery. Terminals were easy to get to and I was in and out in five minutes or less. I have no clue how long this battery will last but we got at least five years out of the old one so I’m keeping my fingers crossed.

  115. Web Customer

    The value. Battery back-up for garage door opener. The last one lasted 5 years. Not bad for the price

  116. Linda Deegan-Adams

    I was surprised it was easy to install. It fit perfect and I couldn’t be happier!

  117. Web Customer

    Great

  118. Greg S

    decent price and quick shipping

  119. Dave K.

    All batteries are going to work the same when they are new. So don’t pay attention to reviews written the day after installation. This is one of those products where longevity is the key feature to rate. I first purchased this battery in July 2014 when the original died. It lasted 3 yrs and 1 month so I bought another one in Sept 2017. That one has died after 2 yrs 9 months. Switching to another brand this time to see if theirs lasts longer. Hopefully I won’t be reviewing theirs in 3 yrs.

  120. Brittany G.

    I liked the fact that this battery was $20 and easy to install. The garage door repairman tried to charge me $75. I have a chamberlain garage door opener and it fit perfectly fine.

  121. dns0913

    Perfect replacement battery for our Chamberlain garage door opener. It very easy to change out and a great price!

  122. Angela

    Fast shipping and fit perfectly.

  123. Jagshere

    Great value for the money, easy install. The battery above is what it replaced. Works fine, charged quickly. This replaced the diehard above from a Sears/Chamberlin belt drive garage door opener.

  124. Daryle Stephens Jr

    This was an easy change out, and the value was very good.

  125. Manny

    Direct replacement only time we’ll tell how long it will last. Last replacement from another seller only last 2.5 years.

  126. John Waldo

    Worked perfect in my Chaimberlin opener.

  127. TT

    Came on time and fit as it was supposed to

  128. Davezuc

    Exact replacement for garage door opener battery. Great customer service with fast shipping. Would purchase from them again.

  129. Joe V

    This is my second time ordering Mighty Max battery. The first one had lasted almost 4 years. A+ in my book.

  130. florida

    received in good shape packed well, fit my garage door opener just right. there only use for me, is to open my garage door during power outage. have not used them yet, good value . I hade Duracell in it ,they only lasted 2 years I hope these last longer. thanks mighty max.

  131. Chandra

    Used as backup battery for garage door opener. Just what I needed.

  132. Big Ed

    Easy install! The jury is sill out on the battery life on this item. My original battery lasted 7 years. If I get 1/2 that I’ll be content with this purchase.

  133. Gun guy

    It worked. Don’t know how long it will last but so far so good

  134. Web Customer

    No issues with this purchase

  135. Web Customer

    I can’t speak to the longevity, yet, but this battery installed in about five seconds and seems to be working just fine.

  136. Rosanne Gianotti

    Easy to change

  137. John Tremel

    Good replacement for the original. Great value.

  138. Web Customer

    Our original batteries died so I bought two of these. These batteries are the same shape and size and the terminals are the same as the original batteries. Best of all they stopped the low battery beep from the openers.

  139. wre

    This is the 2nd battery we bought from them. Works fine

  140. K. F. Haskell

    Bought this battery because it is a lot less expensive than others and the first one I bought lasted 3 years in a garage door opener. Installation is no different than an expensive battery. Highly recommend it.

  141. andrew g hans

    works

  142. Debbie

    This battery replaced my old one perfectly. I you tubed how to replace the battery and did it without a hitch. Easy to install, has been working, and no beeping noises (low battery indicator with garage door system).

  143. RichardD

    Perfect replacement for our Chamberlain opener. Don’t know yet about longevity…

  144. Oscar

    Installed it about a month ago and no problems at all. Easy to install and half the price. Can’t beat it’s

  145. ABT

    Product terminals/connection points did not fit my application (backup battery for a Craftsman garage door opener), but was otherwise within spec. The model was stated as being compatible with my application. Seller, Mighty Max Battery, provided adapters which shipped separately (albeit slowly). My garage door opener has now stopped screaming at me about replacing the backup battery. Overall, it works and was priced competitively, but I was a bit disappointed about how long it took to get the product functioning. If you’re in a hurry, you may want to look elsewhere (but may also pay more). Fortunately, my application didn’t require an urgent/immediate replacement.

  146. jello

    It’s been 3.5 years so far and still running. Knock on wood.

  147. Justdoit

    Good product, works as good as the original brand

  148. Michael

    Works great

  149. BigJeff

    good price

  150. BC

    received as expected

  151. Leftshot

    Went online and ordered the battery. A week later it arrived. Took 2 minutes to unbox and install. Started charging immediately. What could be easier? Did not rate longevity as we’ll have to wait and see. The factory-installed battery lasted 5 years. If this one lasts that long I’ll be a very happy camper.

  152. Hyung Chung

    It is easy to replace the worn out battery of Chamberlain garage door opener.

  153. iajarmeh

    so far so good (2 months)… not sure how this will hold up over time. the Original one Lived 6 years before it started beeping…. not sure about this one

  154. Darlene Henry

    Battery

  155. Amy Larson

    Fit & worked perfect

  156. zam

    so far, its fine. don’t know how long it will last though.

  157. Bob

    Works like it should. Time will tell.

  158. Walter Ahland

    This is a replacement battery for our garage door opener. We anticipate replacing batteries every 3-5 years so if this last 3-5 years we are going to be happy.

  159. M. Brooks

    Great replacement to the more expensive one from the manufacturer. Well build and worked great but not sure about how long it will last. No reason to think it would be much different than the Chamberlain.

  160. Web Customer

    This was a replacement for the home security system batter that we had. Easy to install and has performed well. The old battery lasted 3 years I dont know how long this one will

  161. Huan V. Nguyen

    Bought this in Oct, 2017 and it died in Oct. 2019. Lasted within 2 years. Will look for other brand.

  162. vaughn w.

    Price / used for garage door backup Hard to rate longevity after less than 2 months

  163. JR

    The price was awesome. Delivery was on time. Fit’s better than the original battery.

  164. HDL Engineer

    The product arrived promptly. Easy to install. I haven’t had to rely on it yet, but I expect it will open the garage door when needed.

  165. Brenton C. Mezeske

    Put 3 stars for longevity because I just bought it and my crystal ball is on back order

  166. Louie Kaufman

    Perfect replacement for the Chamberlain Garage Door Opener battery at a great price.

  167. Michael Villa

    We just bought this one to replace one we bought about four years ago in our garage door opener. The last one lasted so well, and was so inexpensive relative to what Lift Master wants for the one with their name on it, it was a no brainer. I think this is a great value, and is an awesome way to save some coin.

  168. Larry Granneman

    garage door opener

  169. Ronald P. Viano

    works well

  170. Ralph L Brown

    Fast delivery, great product value. Easy to install.

  171. Hubie

    I bought one of these batteries ~4 years ago and just had to replace it with a new one. For a lead battery this seems like a reasonable product life and at such a low price definitely a good value!

  172. Diana VanDerVeen

    Great product. I recommend!

  173. John Paul

    As advertised, excellent price, quick delivery, very easy to install and it fit in the available space.

  174. Jawbreaker

    We purchased this for our LW5000EV Chamberlain Garage Opener. It was perfect replacement for battery #41A6357-1. The installation was easy, especially after viewing an example on YouTube. Our original battery from 2013 died after 6 years of normal use, which seems to be average for these. This seller’s battery had the best price, and was a perfect match.

  175. edik

    Very good

  176. C. Lattimer

    This is my second replacement using Mighty Max. Unlike the first replacement experience in 2014, this time battery arrived not dead and worked immediately. I expect 6-7 year lifetime because we have few power outages, but 5 yr is OK I guess.

  177. Kilroy

    It is working for my chamberlain opener thus far.

  178. Web Customer

    Good buy , installed easily

  179. Vivian H

    I am going to take a chance and order this battery again, The last one I ordered on 1/12/2018 and today is 8/3/2019 18.9 months. When I went into the garage this mooring I could hear the door opener chirping, this battery is used in a Chamberlain garage door opener. Same size and specs. And I thought I just replaced it. Well was 18 months ago.

  180. James Blanc

    Gets the job done and easy to install.Good price. Can’t answer longevity since only had for short period. Time will tell.

  181. ASN

    Works fine. Not sure about the longevity though.

  182. Kbean

    This battery arrived quickly in excellent condition. The voltage was held steady at 12.94v for a week before I installed it. I am optimistic that this battery will perform well in the future.

  183. Randall E. Vest

    Perfect fit and works as advertised. I have replaced the original Chamberlain battery with another Chamberlain. It went bad after about 5 or 6 years so I decided to go with the mighty Max. It was half the price and I’m sure it will last at least 3 or more years although I cannot speak to the longevity just yet.

  184. Mic

    Battery seemed to perform well in the first 2weeks and then performance degraded very rapidly. Couldn’t hold charge again after barely over a month.

  185. MARK D GATES

    Worked great in my Chamberlain garage door opener, great price, the old battery I removed was redeemable at my local Advance Auto Parts for a $10 gift card. Cant beat that!

  186. D.M.

    Bought in 5/2015 as a replacement for my craftsman garage door opener, and failed today (July 2019). My garage door opener was once again beeping and the battery read about 6V. 4 years might not seem that long, but keep in mind that heat is hard on lead-acid batteries and I’m in central texas so my garage is hot. 95 degrees at 8pm, and still 85 degrees first thing in the morning. Probably hotter up where the garage door opener is at. Car batteries don’t tend to last more than 3-4 years out here, so I figure I got my money’s worth. Am I happy with this battery? Let’s just say that I’ve put in an order for another one. (5/2020) The second one is working great, as expected.

  187. Stever83

    works fine

  188. Cory Starkie

    Worked great. Easy to install. Great buy for the money.

  189. Gary

    did the job

  190. LHjL

    Fits and works perfectly for my garage.

  191. Jason Gordon

    Longevity 4 star due to just getting. But at this price itd still be great if had to replace every other year. $50 for Chamberlain is ludacris

  192. Benny

    Easy to find, easy to order, came on time, easy to install. A good experience

  193. Jessica Coey

    Works great and can’t beat the price!

  194. Pamela Robb

    Fit perfectly. 5 minutes to install.

  195. Naturaldreamer2

    It fits.

  196. Phil

    Easy in and out.

  197. elton fowler

    Easy installation.

  198. Jeff Gregors

    Fit perfect and cost was reasonable …quick delivery

  199. Pavel

    Arrived on time, fits into the Chamberlain garage door opener. The original one lasted 6 years. Time will show… Update, Nov 2021: I just quit working. Morning beeps from the garage. I disconnected it and ordered a new one. It lasted about 2.5 years, 3 Arizona’s summers, when the temperature in the garage can reach 110F, especially close to the ceiling. A relatively short life, but my car battery doesn’t last much longer here. Definitely a shorter lifetime compared to the original one.

  200. Freddy Torres

    I bought this to replace the battery in my Chamberlain garage door opener. This type of battery would have cost me $45 if I went with brand made by Chamberlain. I paid a third of that here.

  201. Robert l. Joyce

    Great lower price option than the original.

  202. Ann

    Battery only lasted 18 months should have lasted 2 years. You can’t beat the price for this little mighty battery

  203. K. Burnett

    Great deal on replacement battery for my Chamberlain opener. Took less than a minute to install. Seems to work fine and a quarter of the cost of buying locally.

  204. Chris S

    It’s exactly like the OEM battery but for a lot less money.

  205. Wilfred W Lum

    In case you are wondering, yes this fits a Chamberlain garage door opener. Same size as original and at less than half the price. Good deal so far. Let’s see how long it lasts. Original one lasted about 3years before it couldn’t hold the charge.

  206. Tom Gerrick

    So far it seems good. Just have to see how long it lasts.

  207. john m.

    it works great and easy to purchase at a good price

  208. MARTIN ORTIZ JR

    Lasted six months ! great price but longevity is not so great

  209. Bert Ledford

    Great so far in my garage door opener.

  210. George Molina

    Great Product and great price. Love it.

  211. Mr C

    Does what it is suppose to do

  212. WV Mountaineer

    Worked just fine.

  213. Leawood Built4Speed

    Arrived quickly and fit perfectly. Would buy again.

  214. Yasmin

    Battery was well packed and functioned as expected. Made my lantern come back to life!

  215. Alan T.

    Arrived on time and is doing the job for my alarm system.

  216. Zaphod Beeblebrox

    i needed 3 so i opt’d for these. they work great.

  217. Jaclyn L

    Initially I thought it didn’t fit. It fits on its side.

  218. Paulie

    This worked great for the garage door opener. It was even already fully charged and have not had an issue.

  219. Mark M-E

    Battery came as expected and fits into the garage door opener and works. No idea on durability (late 2018 install), but the original worked for over ten years…. so we will only know after a while…

  220. J Lee

    Battery was just right for value and fit. Charged overnight now working

  221. Codelo

    This batter was a perfect fit for my Chamberlain opener. Some third-part batteries are not exact fits, but this was perfect.

  222. Mr.T

    This Mighty Max is an exact replacement for my garage door battery backup. Quick and easy to install. Came fully charged and was ready to get to work.

  223. R. Otis

    Does exactly what you’d expect.

  224. JustBlue

    It was the same size as the original so it installed easily as a replacement for the back-up battery in my Chamberlain garage door opener and seems to be working. Only time will tell how long it will last but it seems to be doing fine for a couple weeks so far.

  225. G D

    Works as intended

  226. Web Customer

    Excellent

  227. Josh Brazil

    This Chamberlain garage door opener replacement battery arrived at on time. The battery was fully charged, > 13 V by my multiple meter. Easy install and the garage became fully functional right away. It worked smoothly after 25 days, so far so good. I am very pleased with this battery initially.

  228. Marilyn

    The battery snapped in place and began charging immediately. It arrived very quickly and am very pleased. I recommend it!

  229. Alex

    It works as advertised

  230. jeff gallagher

    preformed as described.

  231. Web Customer

    Have only had it for a month or so but it works!

  232. Dr Hansen

    Made in China. Perfect fit for Chamberlain Security+ WD962 garage door opener. Installed May 2016 and no longer accepts charge December 2018.

  233. Terri F.

    I installed this battery in an uninterruptible power supply (UPS) for my computer. The model said no user replaceable parts inside but I chose to differ. It was an improved replacement over what I had. It was the right size, and when I reassembled the unit, it worked. Haven’t yet had a power outage so I guess I truthfully can’t say how well it works, but so far, so good.

  234. Charlie

    Replaced garage door backup battery. Working great. Price was good.

  235. Martin Helleson

    Installed in overhead garage door opener, easy install seams like a great value; arrived quickly

  236. Web Customer

    Garage door. Alsome product and price. Fast delivery!!

  237. Arthur Roach

    My battery was dead in my garage door opener so I purchase this and my battery backup in my garage door has been working great ever since. Thanks!

  238. Borhan S. Ismail

    Good battery works first time

  239. Deborah D.

    Very easy to install and package came very quickly as you know this is for a garage door so that was very comforting. Thank so much.

  240. Grandma of three

    Exactly what I needed , met expectations.

  241. A. Gift For You

    This battery for my garage door opener fits and works as promised. It was less expensive than the OEM battery. The battery that it replaced lasted 5 years. Time will tell if this battery has the same lifespan.

  242. Jason Lee

    Don’t buy the official Chamberlain or Genie battery. They are made in China just like everything else and there is nothing special about them except they are overpriced. Get this battery or one like it and install it yourself and save big. There isn’t much to review. It works, is a good price, is easy to install, was easy to order, received it on time… everything you could want.

  243. Max

    cost less than half the cost of a Chamberlain battery, time will tell?

  244. Web Customer

    This works well with my Chamberlain garage door. Great price and good product. It was very easy to install.

  245. Ocean Dragon

    The only thing that I am able to evaluate is the quick well-packed shipment, easy installation, and functions well. Can’t say anything about the longevity, since no time has passed. The original battery lasted 6 years.

  246. Kindle Customer

    The item arrived fast and was very easy to install. It is the cheapest price I found anywhere.

  247. Bernard

    The battery was as described and delivered on time and worked in my garage door opener.

  248. Sam G

    It arrived fully charged, (tested it before installation with my Fluke multimeter.) Works perfectly once installed, but it would have been nice if Chamberlain had made the battery door compatible with traditional sized 12 volt 9 amp UPS batteries, rather than a 12volt 4.5 amp battery. But Mighty Max made a good replacement that works as intended. Sometimes buying off brand UPS batteries are hit or miss, wasn’t a miss with this purchase.

  249. Don Wilkins, Ph.D.

    This is a great price for this battery, and it seems to work as well as the original. Not particularly easy to replace, but that’s the fault of the Chamberlain opener design, not the battery.

  250. BP

    Perfect replacement in Chamberlain HD920EV that uses part number 41A6357-1

  251. John and Paula

    works great easy install good buy

  252. Dan JTop Contributor: Pets

    The old battery was made in August 2010 and the opener was installed in October 2015, so the old battery after laying dormant for a little over 5 years lasted another 3 then the Garage door opener would beep every 30 seconds. For the price with shipping being as low as it was & half the price of the Chamberlain branded battery there is plenty of value in this battery. If I get 3 or more years out of it then it will truly be a good value. Why pay 2-2.5x the price?

  253. Rtoo

    Replacement battery for Chamberlain garage door opener. Works great. Good price.

  254. Web Customer

    thanks

  255. BobL

    The battery fits, it charged, and it works right now. What will determine if this is a quality battery is if it lasts for 5-6 years. It might earn a five star rating, it might earn a one star rating. Only time will tell.

  256. danny r simmons

    this was exact replacement for garage door opener, last about 4 years

  257. Jim in Virginia

    So far so good. These batteries never last as long as I think they should especially considering that I end up actually using it about 2 times a year. But I am hoping for the best.

  258. Oleskool

    Great product work great fast shipping

  259. DON VU

    Good battery!

  260. KK

    Prompt delivery and it is easy to replace.

  261. Douglas Nelson

    Perfect replacement battery. No issues installing. Great price!

  262. Web Customer

    Great Battery Great Service!!

  263. N Rao Bonda

    Used to replace the dead battery in my Chamberlain garage door opener. Good price and fast delivery. Easy to install.

  264. Mark M.

    This has been in my Chamberlain garage door opener for 6 months with no problem. It seems equal to the one that came with the opener but cheaper than buying a replacement from Chamberlain.

  265. jojo 33

    Received when promised. Fit correctly and appears to be working fine.

  266. Web Customer

    Great product nice fit no problem with it at all!

  267. Ann Droid

    It must be working because the garage door opener stopped beeping — FINALLY!

  268. John Aitken

    Easy to install in the garage door opener. For power failure.

  269. Chopstix Kid

    Fit perfectly and still working great.

  270. Jim Snell, Concord, NC

    The battery was a replacement for the old one in a Chamberlain garage door opener.

  271. SDfromTX

    I bought this when my original 1.25HP Chamberlain Garage Door Opener battery died (the beeping sound). While I was awaiting for the shipment, I removed the old battery to get rid of the sound. The shipment came in fast and I installed this battery without any problem. It has been a week and everything seems fine. I hope it will last long.

  272. Bill

    Works great! Best deal for price point! Bill

  273. Rodney S.

    Bought this battery as a back-up power source for garage door. Lasted 3-years and cost 1/3 of the battery orginally installed.

  274. Bonnie C Cain

    Fit perfect and works as stated. Garage Door battery replace Chamberlain battery.

  275. Kersey Fabrications

    This battery worked great in my Chamberlain B730/WD962 Garage Door Opener. It installed exactly like the original and was able to open and close the garage out of the box. I can’t comment on the life of the battery yet but so far, so good.

  276. dennyk101

    The price was right & it does what it is supposed to do.

  277. Alyssa

    Perfect replacement of OEM!

  278. labdad

    This battery worked perfectly for replacing my orginal Chamberlain battery. Make sure you turn the battery in the cortect direction so it fits in the battery compartment correctly. I have had this battery for 2 months experiencing no problems. Yes I would recommend this replacement battery.

  279. Claudia Sells

    Received the battery quickly and it was the exact size of the original. It installed easily and worked perfectly. Hopefully it will work for a long time.

  280. Geldscheisser

    No problem with the batteries fit and terminal location it snapped into place in a matter of minutes and opened and closed the garage door.

  281. leonge

    Works great as expected.

  282. Web Customer

    As advertised

  283. Cody Clark

    So far so good.

  284. Patricia Adamek

    It was so easy & convenient to go online and order this battery. It was the exact match for the battery that needed replacement for our Chamberlain garage door opener. It was also much less expensive with free shipping than the one offered by Chamberlain and the big box stores. We received it within 5 days if ordering.

  285. Scottie Boy

    Perfect replacement for my old Chamberlain garage door opener battery. I’ve only had it a couple of months so time will tell as to long term durability but so far so good.

  286. Andy Shed

    Seems to be good quality and came at least partially charged.

  287. Bonnie

    Battery lasted 3 1/2 years in Chamberlain GDO.

  288. Web Customer

    Seems like a good quality battery. It was 100% charged, and ready to go right out of the box. I used it to power the LED lights on my street legal mini bike. It is the perfect size to fit in the heat shield from my old square muffler that I turned into a battery box. I keep the battery charged by running the 7 amp lighting coil output (8-14 VAC) to a tiny bridge rectifier (AC to DC) which gives me just enough power to keep the battery fully charged.

  289. Cottontop

    It works.

  290. Antourage

    New, and fast shipping

  291. Thomas McCrea

    Works Great

  292. Jamas

    Great battery replacement for garage door opener at a substantial savings compared to other brands.

  293. Phil Hannigan

    Seamless ordering and delivery of the right product for a good price. What more could one ask? Good job, and thank you.

  294. Kathleen A.

    Just what we needed for our garage door opener and works great.

  295. BOCA RICH

    I have had one for over a year…works as good as the Chamberlain….this one bought for my father in law.

  296. Truck driver

    Also works with LiftMaster 8550W. Fits just like the OEM battery.

  297. JSOFLA

    works just fine.

  298. Nancy H.

    Very easy to install.

  299. Kindle Customer

    Good

  300. Martian Soldier

    Very easy install, almost half price of the original and works as intended!

  301. El Toro

    Worked right out of box.

  302. Patricia Yoshimoto

    good price. shipped and received earlier than scheduled. 2nd replacement…1st replacement lasted just as long as original (about 3 years).

  303. Web Customer

    worked as expected

  304. GREG PERRY

    Perfect fit. This replacement battery was 100% perfect…size, power, install. Very pleased.

  305. cora keller

    It made the garage door work right again and fit properly.

  306. Dennis L. Kitch

    This item has been rated

  307. Garrison H.

    I used this for a portable speaker and it works quite well and produces a very stable current and charges quickly.

  308. Fushen

    great replacement for my Aqua-Vu camera battery.

  309. Lou H.

    works perfect in the garage door

  310. Billy

    No complaints, been about 6 months, used it during 2 separate power outages. Last one was two weeks ago, opened and closed the door four times over a 12 hour period. Fit and plugged in just like original.

  311. Optician in Arizona

    Works perfectly in my name brand Chamberlain garage door opener. Easy to put in yourself. Save money !

  312. Billie

    Installed easy and has been working great.

  313. D. Hanks

    Good replacement for the manufacturer model at a much better price

  314. pda

    Perfect fit. No issues.

  315. Watson26

    Not expensive, but it only lasted 2.5 years before it would not take a charge.

  316. J. S. Wedeking

    It came promptly and it fit fine.

  317. John Butsavich

    Received as expected in good condition in a timely manner. Fit and has been working perfectly. Great value.

  318. SHAKIR M.

    Great Seller , fast delivery .Item as described . Will BUY AGAIN A++++

  319. Mido Elgen

    It works great. I recommend it.

  320. RM

    So far so good.

  321. Vickie White

    Using in garage door for a battery backup and it works great

  322. Shoedog

    Works great in my electric garage door opener..

  323. Chuck Zehnder

    Works beautifully and sure cheaper than others. Thanks!

  324. Dubs

    Exact fit

  325. KD Rauch

    doing the job well, and fit perfect

  326. JB2020

    Excellent replacement battery…exactly what I wanted!

  327. Brandon

    Alarm system replacement

  328. Steve S

    Cheap, arrived quickly, fit like a champ. Great for the money

  329. L.R. Murdock

    I have not had a problem with any of my Mighty Max batteries

  330. Rhonda Lugo

    Works great.

  331. MasterP78

    Perfect fit for my Chamberlain opener. Got me back up and running properly and got the Replace Battery message to go away finally!

  332. Kathy

    Second time ordering this battery. Works great. On our garage door opener.

  333. Maxx

    This is the second battery purchased. First one lasted about 3 years. At the price, it’s an acceptable battery. Fits perfect.

  334. Terry Rose

    Good price and works great

  335. LoveRandy

    Works great! Great price! Thanks.

  336. Tom

    Good product – easy install. Purchased similar Mighty Max battery for FIOS back up module. Both instances each installed in 5 minutes.

  337. Gman

    very good replacement for my garage door opener.

  338. Web Customer

    The dead battery light was flashing on my garage door opener. I installed a new battery. The light stopped flashing. I love it.

  339. Y. He

    Everything is as expected. Easy to install.

  340. Millie

    The item came quickly. It is working great.

  341. Mark R. Neubrand

    I used this as a replacement battery for my electric start lawn mower and it fit perfect.

  342. CAT I AM

    Perfect easy to install replacement battery for my ‘battery back-up’ garage door ! Great price and fast shipping! When I am in need of having to replace it again I will 100% be repurchasing this battery from this seller!.

  343. Eric

    OEM Diehard 4228 is 20.18 after tax at Walmart.

  344. Greg K

    Fit perfectly & works great

  345. Mikey

    Perfect for my sears opener Fit perfect and started charging as soon as it was connected Time will tell how well it last in the Texas heat

  346. KC

    Good product, good price, and prompt delivery. Very pleased with the transaction.

  347. Web Customer

    Perfect

  348. Paul F

    delivered on time, easy to install, working great.

  349. Larry Coleman

    fast shipping and cheaper than manufactures sites. Very happy with the sale. highly recommend if you need one. will do again, if I need another.

  350. steaks

    Works perfectly in my Whisper Drive.

  351. Charles E. Hickman

    Charged for 24hr tested and worked as advertised. Stay tuned for longevity results.

  352. Web Customer

    Worked for me and took a day to charge, good price on these and even the original batteries were made in China. Let see how long they last.

  353. Kindle Customer

    Working fine. Thought the logic board had failed but was just battery.

  354. SH

    Good price, good product. Exactly what I needed to replace the old battery in my Chamberlain Garage door opener.

  355. A.Z.

    It seems holding up well

  356. L.W.

    fit perfect

  357. Web Customer

    Yes I’m very satisfied

  358. scubapilot

    Fit and Worked as Expected,…Thank You Much,….

  359. chdecourt

    As advertised

  360. Shoprat

    Good fit communication from seller is awsome and a fair price this order was for a four wheeler I will be buying one for the lawn tractor as well.

  361. Kimberly K. Carter

    Awesome a+++

  362. Fred J.

    Right product, right price, quick and easy process.

  363. Doc Lue

    Works great not a problem so far!

  364. Michael Brown

    Fits perfectly

  365. Henry

    Good little batter .

  366. IT

    Good price and batteries working very well. I purchased three batteries to replace original Chamberlain. Shipping was on time and packing was done well.

  367. Web Customer

    You guys saved me so much money. A garage repairman will charge an arm and a leg to repair something that cost much less than what they charge. Great product, fast shipping and easy to install.

  368. BoggyJoe

    Had to get a replacement backup battery for our garage door opener. Works pretty well and fits in the compartment.

  369. Chris Underwood

    So far so good.

  370. Oh-Gee

    This Mighty Max battery replaces the original battery on my five year-old Chamberlain belt drive GDO. The old battery still held a charge, but I decided to change it anyway, as it’s usually a good idea to change these out if they don’t get exercised enough. The Mighty Max battery is slightly smaller than the OEM battery, but it fit all the same.

  371. MaRiley

    Battery lasted 2.5 years – these are supposed to be good for 3 – 5. You are going to get what you paid for with this one.

  372. Mel Co

    I lost power for 2 hours and couldn’t get into my house (didn’t have spare key with me). Stupid me, I had a GDO with battery backup, but I neglected maintenance and now the battery is dead! Vowing to not let this happen again, I bought this item, plugged it into my Chamberlain and let it charge overnight. Perfect fit, btw. Next day, turned off the fuse to the outlet, tested it, and now my GDO works as it should. Cheap insurance for power loss and needing entry into the house. And the battery arrived 3 days ahead of schedule!

  373. Kevin Chandler

    Works great, no issues

  374. Elizabeth J. Hayes

    After six months, still working like a champ.

  375. jeff sloan

    still going strong after a couple of years.

  376. Web Customer

    battery fits perfectly in Chamberlain door opener. Can’t speak to longevity, just installed it. (my 15 year old boy put it in.)

  377. Joel H.

    Product is exactly as advertised and arrived slightly early! Excellent transaction!

  378. Geraldine Shire

    Good price and worked perfectly

  379. poolboy_100

    Back up battery, just need to recycle old one!

  380. JVG

    Works as needed

  381. GanymedeLA

    The battery arrived partially charged and ready for installation. It fit the door opener compartment perfectly and worked on the first try. The instructions are clear and easy to follow.

  382. G. Williams

    I’m not sure that I love it is what I should say about a battery, but it was/is an exact replacement for what I had and works perfectly…so…5-star.

  383. bryon whitney

    Works good and was received very quickly.

  384. Katherine

    Easy installation

  385. ?mazon Customer

    I have a Chamberlain garage door opener. I chose this battery over an OEM battery after reading the positive reviews. I agree with all. A lower price and the change out with the old battery took under 5 minutes. A perfect fit and red to red, black to black wire connections couldn’t be easier. I highly recommend this battery.

  386. mazon Customer

    I have a Chamberlain garage door opener. I chose this battery over an OEM battery after reading the positive reviews. I agree with all. A lower price and the change out with the old battery took under 5 minutes. A perfect fit and red to red, black to black wire connections couldn’t be easier. I highly recommend this battery.

  387. LTD

    Works fine. correct fit

  388. Mike

    As described, good replacement battery for my GDO.

  389. Richard L. Foster, Jr.

    Fast shipping! Repeat customer pleased!

  390. Jim

    As advertised

  391. Ambir_d

    It works… what’s not to like?

  392. Greg Snider

    Battery worked just like the more expensive one from Chamberlain.

  393. Boogie

    Great item! Perfect fit for my Chamberlain garage door opener

  394. Tom

    Perfect fit on Sears garage door opener, Model: 139.53918D with a DieHard battery (12 V 4.5 AH). After two days of charging I test the door by unplugging the AC, opened and closed the door twice and measured the voltage before connecting the AC. 13.02 volts. Plenty of juice to run the garage door during a power outage.

  395. Leonard Kutassy

    The battery is just right.

  396. Frank Guliuzza Jr.

    Works as it was supposed to do.

  397. happygirl

    Exactly as promised…awesome seller!

  398. Joanne Higgins

    Quick shipping and works great! Thank you

  399. Kindle Customer

    Perfect replacement battery for my garage door opener. The opener works again, and the beeping has stoped.

  400. Web Customer

    Product fit properly, price was good, and was delivered quickly.

  401. SHELLY ADE

    Great price, good quality, shipped fast

  402. JQ Public

    It came on time – plugged it in and will just have to wait for the next power outage to see how well it works.

  403. Mik?

    This is my second purchase. of this battery. The original lasted 5 years, the replacement lasted just shy of 4 yrs. so I guess that made it a worthwhile purchase. The only quibble I have is that there is no manufactured date anywhere on the battery, just some cryptic code, so you just have to trust that it hasn’t been sitting on a shelf somewhere for 10 years. After five years our Chamberlain WD962 3/4 hp belt drive door opener’s battery backup failed. (Dumb me – it took me two weeks to figure out what the heck the beeping in the garage was all about.) This is an affordable replacement. Replacing the old battery was a snap and now only time will tell how good the replacement really is.. Shipment arrived intact and earlier than promised – always a good thing.

  404. Mik

    This is my second purchase. of this battery. The original lasted 5 years, the replacement lasted just shy of 4 yrs. so I guess that made it a worthwhile purchase. The only quibble I have is that there is no manufactured date anywhere on the battery, just some cryptic code, so you just have to trust that it hasn’t been sitting on a shelf somewhere for 10 years. After five years our Chamberlain WD962 3/4 hp belt drive door opener’s battery backup failed. (Dumb me – it took me two weeks to figure out what the heck the beeping in the garage was all about.) This is an affordable replacement. Replacing the old battery was a snap and now only time will tell how good the replacement really is.. Shipment arrived intact and earlier than promised – always a good thing.

  405. Techno-Cruiser

    Perfect fit. The original lasted for 5 years or so, hopefully this one will last at least as long.

  406. Bill Rippel

    Works as expected. Fits perfect

  407. Web Customer

    It was a perfect fit and solved the Battery Low beeping on my garage door opener

  408. Web Customer

    battery was just what I needed and expected. Arrived very fast too.

  409. Kindle Customer

    Saved about $20 buying this online here versus locally at a store. Arrived fine and installed easily.

  410. American National Firearms

    This has been in use and working fine for a couple months. A week or 2 after I put it in, I unplugged the garage door opener and used the battery only for 2 days, opening and closing at least about 10 times a day. I plugged it back in and everything has been fine since. I have no issues with this product and would recommend it.

  411. shrimpmoney

    Works great in my Sears/Craftsman opener. Save money, buy this instead.

  412. J. Jones

    Worked great as a replacement for the original.

  413. Web Customer

    An exact replacement for my Chamberlain original battery at half the price.

  414. Bailey

    Fast delivery. Perfect fit as a replacement battery. Very happy with purchase.

  415. Corey Myers

    Ordered this battery as a replacement for my original in my garage door opener that was alarming to replace the battery. After installing this new battery the unit did stop alarming to replace the battery, however the garage door does still seem to be opening and closing more slowly than before, but that could be the motor itself. Replacement battery seems to be doing it;s intended job, though I have not yet tested it during a power failure which is when the battery would come into play. I will update this review once able to test opener when it has no AC power.

  416. Zerocool

    9+ Cycles this battery is fantastic

  417. Kindle Customer

    Just installed it. Hope for 5 years….Perfect fit. Exact replacement..

  418. COLBY2

    fast shipping and fit perfect no problems here

  419. Michael Palmer

    This battery was exactly what we needed.

  420. Don

    This is a perfect fit for my Craftsman garage door opener. It also cost less then one from Sears.

  421. Miguel C

    Excellent battery, it was a very inexpensive way to fix my garage door opener instead of paying almost $200 in service. It has work well so far and it was easy to install.

  422. Bryan

    Replaced OEM with this battery, works great!

  423. BarryNew Jersey

    Seller delivered very quickly. Battery is perfect replacement for Chamberlain battery. Seems to be working great. I am going to order two more. Great product.

  424. Mike

    Perfect replacement for my garage door backup battery.

  425. Amir

    Fits great, took 5 min total for install on my chamberlain garage door opener, thanks

  426. Joe & Kathy C.

    This battery is an exact copy of the Chamberlain labeled factory battery I removed. However, in the product description it is listed as weighing 3.09 lbs. witch Is correct because I weighed it. Then, in the product information it is listed as weighing 3.50 lbs. Very interesting, because the battery I removed weighed 3.50 lbs. The battery I removed lasted 5 1/2 years from the date of installation. That I believe is phenomenal. Maybe the weight difference occurs because of the difference in technology? I’m no engineer so I would not have the vaguest explanation. Looking forward to see what the longevity will be. Oh ! Price and value are very GOOD.

  427. Hprodcrx

    Worked as expected.

  428. Kwok

    I have installed this battery to my garage door opener for a couple of weeks already. It works as expected.

  429. Mohammed S Alam

    It works good

  430. Web Customer

    Great battery!!!!!

  431. jhinds57

    This was exactly the same size and shape as the battery I was replacing. So far working as expected. thank you.

  432. warrenal

    Right battery and went in. Dry easy. Hope it lasts as long as the original one I had from 2011.

  433. James F. Waits

    A reasonably priced replacement for the original equipment battery that came with my garage door opener. It worked fine upon installation.

  434. renob

    Worked great.

  435. Web Customer

    Nice fit and easy install

  436. Dwight Kelly

    Battery works fine but doesn’t EASILY fit in opener. Wiring had to be modified and saved wires from old batteries. NOT AN EXACT FIT.

  437. kadi

    Fits my garage door opener so yay!

  438. Gary in WI

    Fit perfectly! Shipped on time and works like a boss

  439. Pandurang Miskin

    as expected

  440. Amazon Prime Member

    Perfect fir for my chamberlain MyQ garage door opener with Backup. Thanks!

  441. Tonyeo

    Fitted perfectly and have had no problems.

  442. BrianT

    Plug and play. Works as intended. We will see if it lasts as many years as the original (5 years)

  443. Martin B. Dermody

    Exactly what i needed. Installation was easy.

  444. Plane Driver

    Exact replacement for a battery in my horse trailer. Very fast shipping.

  445. CAROLINE S ANDROS

    Works great

  446. Mike D.

    Good product. It works great and the shipping was real quick

  447. Web Customer

    Good battery at a good price

  448. RLO

    Replaced the original 5-year old dead Chamberlain battery perfectly.

  449. W. LaPlante

    Fit, function, delivery, price.

  450. M. Ference

    As described

  451. Larry

    The battery fit perfectly and has worked reliability for several months now.

  452. V. Redd

    Works well. No issues.

  453. Chuck Black

    Great product. Shipped on time.

  454. Kenneth R Flowers

    Worked as advertised and is still working

  455. Web Customer

    Great replacement battery. Fast delivery!

  456. mikestep

    works perfectly

  457. Redwing

    Battery does the job. It arrived in only a few days and was a direct replacement for the original Chamberlain battery that went bad (after unplugging my garage door opener for a week while I was on vacation, it started beeping as soon as I plugged it back in, indicating a bad battery after 3+ years). As soon as I installed this battery, the beeping went away and I have heard nothing since. I guess no news is good news, and I can’t comment on longevity or durability of this battery until it goes bad, which is why I can’t give it 5 stars.

  458. rmcintosh

    Right fit. Works well. All one can ask for in a battery.

  459. Web Customer

    Great battery. Fit perfectly. Works as advertised. Excellent seller

  460. Gerald W.

    Over a year old and still going strong.

  461. lancey

    worked great when the power gave out

  462. Pantograph

    We’ve had our Chamberlain 3/4 hp belt drive door opener for about 7 years, and the original 12v battery finally succumbed during a recent hot spell. It took a while to figure out where the beep was coming from every 30 seconds. I finally pulled one of the leads off the old battery and the beeping stopped, with no apparent impact on opener function. I couldn’t believe how much cheaper the Mighty Max battery was than the OEM version! I sprung for the expedited shipping and it came in two days from Brooklyn to SoCal via USPS Priority Mail. Very easy change out after I grabbed the old battery by one terminal with my pliers and wiggled it until it slid out. The new MM battery slid right in with ease. As far as I can tell, it is exactly the same size as the original battery. Now the little green light is on and no beeping. A great deal, even if it only lasts a couple of years.

  463. Eric Ristau

    Exactly as advertised. Battery fits in garage door motor and stopped the beeping. So far so good!

  464. jasski

    Worked as indicated — no issues

  465. Ray M.

    Shipped fast. Have not verified it works or not because I have not had a power outage. Fit the garage door opener just like the original.

  466. fergsRus

    perfect for my Chamberlain Whisper Drive at less than half the cost of the manufacturer replacement

  467. Tryin2Shop

    Working just fine. Paid less than half of what I would have paid at Batteries Plus. I’m a happy camper!

  468. PB

    Product as described. No issues with seller or product

  469. wm. stone

    Fast delivery – good fit – reasonable price.

  470. nopep

    Very good replacement battery for Chamberlain Garage door opener. In order to stop the beeping until new battery arrives disconnect one terminal on the old battery.

  471. Richard R Rathbun

    The battery was what they said it would be. Ease to install.Very satisfied

  472. JOLENE DAVID

    Saved a lot of money going with this battery!!!

  473. Casey Starkey

    It was exactly what we needed. It fit exactly as was described!!

  474. Brian D

    Excellent replacement, Super fast shipping about half the price I expected to pay Thanks

  475. Jim Thompson

    Removed expired battery & installed this replacement & worked fine right out of the box. It is a backup on garage door opener should there be a power failure.

  476. Susan Kracke

    This item came and was placed in my garage door opener. It charged up and has worked perfectly since installation. Item was received in excellent condition and in a very timely manner. Thank you!

  477. Dr Phil

    Worked perfectly to replace the battery backup in our Chamberlain Garage Door Opener at a fraction of the cost of OEM. Came quickly. No complaints.

  478. Sue

    Hey….it’s a battery for a garage door opener. It works! Easy to install and it does what it’s supposed to do.

  479. MStur17

    Can’t speak to longevity of this battery since it’s only been 2 weeks, however it is an exact replacement for our garage opener.

  480. portia

    it works ok

  481. Lynn

    Great price and fast shipping!

  482. Elsa Rdz

    Works, no problems after a month

  483. DesertMom

    Good buy. Works exactly as the factory original.

  484. D McCabe Denver

    I guess it’s ok. It has been installed and is working. It is hard to judge a battery until the time it is needed and either succeeds or fails. It was less of a cost than going manufacture’s battery replacement so if it works good for the amount of time needed I would upgrade to five stars

  485. Kevin M. Pavletic

    Worked like a charm, direct replacement.

  486. Fab

    Exact fit and replacement for my chamberlain garage door opener. Easy to install. these typically last about 4-5 years.

  487. MimiWeb Customer

    No issues working grate

  488. TerryH

    Works as expected dimensions matched original. Shipping was fast

  489. B.N.

    Fits the Chamberlain Garage door opener just right and is a good cheap replacement battery.

  490. Larry Bullard

    As advertised.

  491. Mike

    Works fine. Hopefully it will last. Good price.

  492. Terry

    Great Pricing. Good delivery time.

  493. Tata R

    Shipped on time and it works as expected. Time will tell if this will last as the original battery which took over 5 years before it failed.

  494. rattleskunk

    cheap great works just like the high price ones

  495. jim

    works great

  496. DM in Chapel Hill

    I hope it works for several years. It fit my garage door and stopped the opener from beeping. I isolated ACpower to the door after giving the battery about a week to charge and it worked beautifully to open and shut the door.

  497. Charles O’Reilly

    Battery was perfect fit and functional replacement for OE battery. Charged up fully in a few hours. Hope it lasts longer than the 18 months of life from OE battery.

  498. logan

    Battery was easy to replace. Was happy to find the exact battery we needed. Fast delivery.

  499. jmahler

    Great battery

  500. Guillermo Colon

    Fastest delivery, battery was as expected.

  501. Teresa Jacobs

    It did what it was supposed to do.

  502. Anita

    Price was very reasonable, ordering on Web site was easy, product works well and shipping was quick. Great service. Will recommend it.

  503. bob

    Very small battery but packs a punch, I bought this battery to run my portable 100w inverter and works great. I want to make something small to charge computers and things when there’s no power like camping. This product came in so quick. It said I would be getting it two days later but it came early.

  504. Ryan

    nothing to complain about, works as it was supposed to.

  505. precious510

    The price was right and shipping excellent. Working great as replacement to OEM installed in garage door opener.

  506. Caroline Meehan

    Works very well. Great generic battery for our garage door opener.

  507. Web Customer

    It’s working like a charm… only had it a month or so but I hope it lasts for a long time

  508. M+M

    battery oem quality and shipped soon and safe

  509. Mary

    Worked perfect for me.

  510. Web Customer

    Fits great, works just as promised.

  511. Buyer321

    I bought this battery to replace the battery that is currently operates my garage door. I’m not sure if I really needed it because it was the sensor that was messed up and not the battery. It has been a year without any issues, and I at least know that I have a my old battery just in case this battery ever goes out, hopefully far far future.

  512. KC in USA

    This battery has been working just like the original for a month now. The terminals were exactly like the Chamberlain battery so installation was very easy. I debated whether to buy a 3rd party battery but I am most pleased so far. I recommend Mighty Max.

  513. jscc

    This battery fit perfectly in my garage opener. It was quick and easy to install.

  514. KittyS

    Our garage door opener was beeping. There was a low battery warning. This took care of the problem. It was easy to install.

  515. UncaDon

    Arrived on time – fit correctly – can’t really judge the quality of a new battery because we don’t know how long it will last – should be many years – we’ll see.

  516. conniemcginnis

    quick delivery, works well

  517. Don Sestito

    Could not be easier to install.

  518. Ginny

    Exactly what I needed and the price was very affordable

  519. L. Herman

    Great price, fast shipping, and now my garage door opener no longer beeps!

  520. Mendoza

    it was really good. Thanks!

  521. Mr. MG

    As advertised, good battery excellent price.

  522. G. MARCHI

    New battery replaced the original exactly. Time will tell if it has the same staying power as the original. The day after I installed this new battery in the front garage door opener, the battery in the door opener for the shop failed. Both openers were installed at the same time and failed within a month of each other.

  523. a65

    The battery worked perfectly. It charged pretty fast as stated. I would buy it again if needed in the future. Recommend

  524. J. R.

    Great fit, great price great communication. My opener eats these batteries every two years. Glad to find a quality vendor to replenish as needed.

  525. mike m master tec

    very good high quality battery. I would recommend this one for alarm replacement.

  526. rick kozlowski

    Works and fits exactly as described

  527. Web Customer

    works great! I AM VERY HAPPY WITH MY CHOICE!

  528. Mike Motherspaw

    Just as described…arrived in shorter time than expected.

  529. Michael Engel

    This is the second battery that I have purchased. The battery went out on the other garage door opener a few months back. Direct replacement for the OEM battery in the Lift master. Easy to install. Quick shipment and great price.

  530. kali swift

    Stopped the warning alarm and came quickly. Perfect fit.

  531. Natalie Esfandiary

    Great product great service.

  532. Liz

    Arrived on time,packaged securely. It doesn’t come charged so when you plug it into the garage door opener,you’ll be relying on the power from your outlet for about 24 hours.

  533. Jay P.

    So far it works fine

  534. Zul

    very easy to install . so far works great.

  535. Strat Dude

    Timing when I bought it was perfect because we lost power a week after I received and installed this replacement battery due to a powerful wind storm. Yup, will buy this again.

  536. Randi

    Fits perfectly into the 3/4 belt drive Chamberlain.

  537. Duane Bowman

    Works perfectly and half the price. Delivered quickly too!

  538. Mike Beckner

    Absolutely perfect inexpensive replacement backup battery for my Craftsman garage door opener. I was a little concerned when it showed up via USPS in a rather worn and dinged up box. Inside the packaging did it’s job, though, and life is good.

  539. k

    Outstanding ! The battery was a direct replacement and I have full function of the back up system. Great value. Fast delivery.

  540. GCK

    Great battery. Easy to install in my garage door motor. No issues. Items received quickly from vendor.

  541. Jim H

    This battery is a good replacement for the original that came with the opener

  542. porfirio machuca

    good so far

  543. Shawn Zamir

    Works good. One time I tried it when the power was out. Worked fine, but doesn’t have that much power. It did however open and close the door without problem.

  544. louis selig

    was exact replacement

  545. Hawkeye

    Fit perfect in opener. Ask me for my opinion in five years

  546. Michael Carter

    fit perfectly and cheaper than the original.

  547. market

    A1

  548. Harold G. Slade

    after 2 months it has worked greate. The previous OEM battery lasted 3 years. so check back with me after 2 years to see if this is as good as OEM.

  549. Shelley McKee

    Worked great, arrived quickly.

  550. D Adams

    Nice price

  551. Verocious Consumer

    On time delivery and fit right in. No issues what so ever.

  552. WIdadof3

    Perfect Fit for Chamberlain opener, 2 minute job to replace. As a previous reviewer said, you may want to disconnect bad battery while waiting for this to arrive so you don’t have to listen to the warning noise, but I received mine in 8 days so not too bad of a wait. Time will tell about durability.

  553. Nischal

    Works as expected.

  554. HC

    Worked as required. Direct replacement for our chamberlain garage door. Same size and everything as original at lower cost.

  555. TC

    It fits my Chamberlain Garage Door Opener perfectly. Excellent product!

  556. RB11

    Battery fit perfect. Excellent replacement for Chamberlain garage door opener.

  557. michael c jones

    Actually fit better than the original battery. Seems to hold a decent charge.

  558. D. Chamberlain

    Worked great and fit my Chamberlain garage door opener like a glove. Very easy to install yourself and certainly less expensive than have a repairman do it. At least my opener doesn’t make that annoying beep anymore!

  559. Jamie Larson

    Great, works perfectly.

  560. Mr Walker

    Replaced my dead one but seemed to take extra long (two weeks) to charge up. Not sure if my garage opener is going bad or what.

  561. ANTHONY J MUCHA

    Just like the original battery from Chamberlain

  562. Swang

    Might Max provided excellent customer service. I had accidentally sent my package to my old address (I had just moved) and it was sent back. I contacted customer service and they were great. They said that when it arrived back they would send it to the new address on the same day. However USPS took forever to send it back and so Might Max just sent out another battery to me and it came very quickly. The product worked perfectly and I am a very happy customer.

  563. Jon

    Fast delivery and perfect replacement for my Chamberlain garage door opener.

  564. Jim Kerr

    Works well in my garage door opener as emergency power. Thanks.

  565. Mark Drozdowski

    quick delivery as works well.

  566. Dad in Alaska

    Hey, it’s a battery. It fit and it works. I’m very satisfied based on the price and quality. However it has only been installed a few months.

  567. Doc SK

    Great replacement battery for Chamberlain garage door opener. Best price, better than all local home improvement stores.

  568. John P.

    worked great! Thanks so much

  569. Tom

    Battery fits and works perfectly.

  570. Dori Dilson

    I installed the battery in my car garage door opener unit and it started charging right away. It may take a couple of days to charge, but it will eventually charge. Great to have a backup when the power is out.

  571. James Jankowiak

    the battery came when promised, in fact it came a day earlier. Fits and functions as I hoped at a low price. I am happy!

  572. bugsplatter

    Great drop-in replacement for the original Chamberlain battery.

  573. Web Customer

    Product is installed and is working normally so I am happy

  574. Libby K

    Fast shipping. Fits my opener. Thank you.

  575. Jack L. Belin

    Product is as described. It fit my garage door opener perfectly.

  576. greg large

    The garage door opener was beeping constantly. The new battery immediately cured the problem. Works great

  577. Lewis

    Exact replacement for OEM battery with higher AH rating as well.

  578. Hoang tran