Rated 4.92 out of 5 based on 88 customer ratings
(88 customer reviews)

$19.99

12V 7.2AH SLA Replacement Battery for Belkin Residential BU3DC001 UPS

Availability: In stock

SKU: ML7-12191111133720343 Category:
Delivering power when you need it, the Mighty Max ML7-12 12 Volt 7.2 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 ML7-12 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: 7.2 AH
Chemistry: SLA, AGM
Terminal: F1
Battery Dimensions:
5.90 in x 2.50 in x 3.90 in
Weight: 4.50 Lbs
Warranty
1 Year
Volts

12V

Amp Hour

7.2Ah

Chemistry

SLA / AGM

Quantity

1

Length

5.90

Width

2.50

Height

3.90

Weight

4.50 Lbs

Warranty

1 Year

Terminal

.187" – F1

88 reviews for 12V 7.2AH SLA Replacement Battery for Belkin Residential BU3DC001 UPS

  1. Rated 5 out of 5

    Colleen (verified owner)

    Just what I was looking for. Works great. Shipping was a bit slower than expected, but not bad. Price was good.

  2. Rated 5 out of 5

    Gary K. (verified owner)

    Good price, easy-to-navigate site, prompt shipping. What else could you want?

  3. Rated 5 out of 5

    Richard Camera

    Excellent price for this battery. No delivery problems either.

  4. Rated 5 out of 5

    Monique F. Daza Chacon

    I bought this battery for a toy ride-on jeep and it worked just fine. I don’t know about longevity because it hasn’t been that long since I bought it.

  5. Rated 5 out of 5

    Mary K. VanGieson

    A battery for a battery. What’s not to like!

  6. Rated 5 out of 5

    Joanna L. Ackerman

    Great battery at a great price

  7. Rated 5 out of 5

    Donald Ferencz

    I was pleased that I could replace the back up battery for only $18 with free shipping.

  8. Rated 5 out of 5

    J. Bayi

    Backup to Computer WiFi.

  9. Rated 5 out of 5

    Dushan M.

    I use it for a back up battery.

  10. Rated 5 out of 5

    Manuel Campos

    A very reasonally priced replacement battery for my 750VA UPS.

  11. Rated 5 out of 5

    Karen L. Prentice

    Quick shipment, as described.

  12. Rated 5 out of 5

    HegiMan

    Fit Belkin battery backup unit perfectly

  13. Rated 5 out of 5

    Chris

    The right price for the perfect fit for our need to maintain our phone equipment.

  14. Rated 5 out of 5

    William S.

    Great longevity. Used in wifi power backup unit.

  15. Rated 5 out of 5

    Lori

    The cost of just the battery is excellent considering I was looking at purchasing a new UPS and decided to see if I could just replace the battery. It was so easy. There is no reason to pay for the cost of a new unit if all you need to do is replace the battery. Even the most technically challenged person can do the swap in a matter of 2 minutes. I put this in about 6 months ago and during that time, we have had a number of power outages due to weather and the internet and computer continue to run. Since I work from home, it’s important to me that my system stays online. I highly recommend this battery.

  16. Rated 5 out of 5

    Web Customer

    It’s really too soon to tell, but for now it is working just promised. Installation was very easy.

  17. Rated 5 out of 5

    L.C.

    Battery Backup for my router.

  18. Rated 5 out of 5

    Ian M

    Fit perfectly in place of the original battery for my UPS box.

  19. Rated 5 out of 5

    Sandy

    As expected

  20. Rated 5 out of 5

    Ed

    Why throw away the charger when you just need a battery. The old one was difficult to get out because of swelling. New was easy to get in and ready to go.

  21. Rated 5 out of 5

    Kindle Customer

    Came early and so far seems to work as advertised.

  22. Rated 5 out of 5

    Mark

    Very easy to install for this very unhandy person!

  23. Rated 5 out of 5

    David Lundmark

    Good

  24. Rated 5 out of 5

    Irving Margol

    Reliable

  25. Rated 5 out of 5

    Mia Johnson

    Got this to replace the old batteries in my Cyber Power 1325VA KX1325G UPS and the fit was fine. It seems to be working just fine but other than testing it I have not had any power failures yet.

  26. Rated 5 out of 5

    Joseph Blackstar

    Used for replacement battery for my nas ups system simple to install and color coordinated.

  27. Rated 5 out of 5

    Lee Ratcliff

    Performed as promised but don’t know the longevity yet.

  28. Rated 5 out of 5

    AWS

    Was as described

  29. Rated 4 out of 5

    Larry Morgan

    Easy to install

  30. Rated 5 out of 5

    Heisenburg

    So far so good. Only had for a short while.

  31. Rated 5 out of 5

    Robert Beard

    Had a partial charge as received. After installing the new battery,, the UPS started up with no problem.

  32. Rated 5 out of 5

    Web Customer

    Fit like a charm

  33. Rated 5 out of 5

    Janice Sue

    Exactly what we needed! Works great!

  34. Rated 5 out of 5

    Dave

    Less than 5 minutes to remove the old and put in the new. Perfect fit for my Gateway Belkin Battery Backup. Easy to put in the Belkin. Turned power back on and in 15 minutes went from reading low battery to full. Obviously, it was pretty close to full power when I received it. Will definitely buy this brand again if I ever need another one.

  35. Rated 5 out of 5

    Web Customer

    Storm came within days. Power went on and off every 10 minutes for approximately 3 hours. Gateway never flinched

  36. Rated 5 out of 5

    Customer

    Storm came within days. Power went on and off every 10 minutes for approximately 3 hours. Gateway never flinched

  37. Rated 5 out of 5

    Diane F

    Perfect replacement!

  38. Rated 5 out of 5

    Marilyn Dukart

    I liked how easy it was to change the battery. I changed a UPS (uninterruptible power source) that provides power for our landline and desktop computer for up to 20 hours in case our power goes out. Good value for a nice battery.

  39. Rated 5 out of 5

    Kindle Customer

    Prompt delivery. Easy to install. Works great.

  40. Rated 5 out of 5

    Customer

    Prompt delivery. Easy to install. Works great.

  41. Rated 5 out of 5

    CE2

    Perfect fit

  42. Rated 5 out of 5

    John D

    Easy Install Works so far

  43. Rated 5 out of 5

    Janzcats

    worked well as a replacement for my ATT battery

  44. Rated 5 out of 5

    Debra G.

    Super easy to install – google how to replace Belkin battery for steps with photos. Black and red cables slide off and on. This was the 1st replacement so cables were on there pretty tight but then the new ones slid on a lot easier. Tested battery and was pleased when the blinking green light went solid, it did take quite a few minutes longer than I thought it would. Fingers crossed the life will be long, the original lasted about 7 years – figure if I get 1/2 that I’ll be lucky so we’ll see.Updated – inside the box you get an offer to register to extend warranty by 3 MONTHS but no mention elsewhere what warranty was to begin with . . .

  45. Rated 4 out of 5

    Web Customer

    The battery arrived timely and properly packed. No issues…

  46. Rated 4 out of 5

    Customer

    The battery arrived timely and properly packed. No issues…

  47. Rated 5 out of 5

    TUSNELDA STANDING

    Replaced the original dead battery perfectly.

  48. Rated 5 out of 5

    HERBERT STANDING

    Replaced the original dead battery perfectly.

  49. Rated 5 out of 5

    Ann E MKE WI

    The battery was rated as a replacement for the phone backup system used for my wifi. Only used it briefly, but its use restored stability to my home network. Good price. Works well so far.

  50. Rated 5 out of 5

    Book LoverTop Contributor: Sewing

    perfectly. Unplug the Belkin. Pull the power from the back of the Gateway. Turn the Belkin on its side and you will see the battery cover door. Remove the cover, tip the battery out… the wires are only long enough to let the old battery (white one) slide out, so be gentle. On old battery, Remove the black connector then the red connector with the protective red plastic on it. Next, remove the plastic protector covers on the new (black Mighty Max) battery terminals and connect the red wire connector and the black wire connector on the new Mighty Max battery and slide it back in the Belkin box. Reconnect power to the Gateway and plug in the Belkin Backup battery. Wait a few minutes for the Gateway to restart. Takes 5 minutes. The battery fits great (see pics), is easy to replace and works. Should be good to go for 5-7-10 years. Maybe. Great deal. Would definitely buy again if they’re still available by then. ????????

  51. Rated 5 out of 5

    Book Lover

    perfectly.Unplug the Belkin. Pull the power from the back of the Gateway. Turn the Belkin on its side and you will see the battery cover door. Remove the cover, tip the battery out… the wires are only long enough to let the old battery (white one) slide out, so be gentle.On old battery, Remove the black connector then the red connector with the protective red plastic on it. Next, remove the plastic protector covers on the new (black Mighty Max) battery terminals and connect the red wire connector and the black wire connector on the new Mighty Max battery and slide it back in the Belkin box. Reconnect power to the Gateway and plug in the Belkin Backup battery. Wait a few minutes for the Gateway to restart. Takes 5 minutes.The battery fits great (see pics), is easy to replace and works. Should be good to go for 5-7-10 years. Maybe.Great deal. Would definitely buy again if they’re still available by then.????

  52. Rated 5 out of 5

    Arthur

    Great!

  53. Rated 5 out of 5

    Steve C.

    The battery is used in a Belkin UPS for my in home phone system. It works quite well.

  54. Rated 5 out of 5

    Tjlove_u

    Mom loves it

  55. Rated 4 out of 5

    cjdjc

    Worked fine, back up diagnosis dead, ugh

  56. Rated 4 out of 5

    cjdjc

    Worked fine, back up diagnosis dead, ugh

  57. Rated 5 out of 5

    Nigel Bennett

    What more can you say!

  58. Rated 5 out of 5

    David Furnish

    Description was correct

  59. Rated 5 out of 5

    Ruel E. Way Jr.

    It is easy to install and does what it is supposed to do.

  60. Rated 5 out of 5

    rgherk

    perfect

  61. Rated 5 out of 5

    Kyle D. Adams

    Good replacement battery

  62. Rated 5 out of 5

    Robert P. Kilpatrick

    It’s in I have no issues and would purchase another if needed

  63. Rated 5 out of 5

    L. Hargis

    It got my backup unit from AT&T working .

  64. Rated 5 out of 5

    Marco Pariz

    So far it is working as expected.

  65. Rated 5 out of 5

    PizzaMan

    This was for an old Belkin from AT&T. Once I found out how to open and swap batteries, it was a breeze. Should be good for years to come (I hope).

  66. Rated 5 out of 5

    Kindle Customer

    The Mighty Max battery is a drop in replacement for the dead battery in battery backup. It took less than 10 minutes to install, it worked right out of the box.

  67. Rated 5 out of 5

    Customer

    The Mighty Max battery is a drop in replacement for the dead battery in battery backup. It took less than 10 minutes to install, it worked right out of the box.

  68. Rated 5 out of 5

    T. Murray

    Saved a lot of money with this perfect replacement. The big name cable company wants you to buy a complete new back up for a very high price.

  69. Rated 5 out of 5

    Timothy P.

    Saved a lot of money with this perfect replacement. The big name cable company wants you to buy a complete new back up for a very high price.

  70. Rated 4 out of 5

    steve L

    works

  71. Rated 5 out of 5

    justin

    Bought a used belkin backup power for my modem incase of poweroutage. Luckily i opened the interior of the case, and found that it was just a large battery, i bought this and plugged it in and it seems to work perfectly. I boought the used belkin for $2.00. THe batter for $19.00 with shipping, and now i have a $100.00 bakcup battery for moddem for price of $21.00 total dollars.

  72. Rated 5 out of 5

    Paul

    I tried ordering a replacement battery from the manufacturer of my backup. I entered all the information 7 times on the website and it failed each time. So I went to and found this product. It was less than half the cost and they shipped it free. It fit perfectly and my backup has been working perfectly ever since. I recommend the product and the service was great. I should have gone to in the first place.

  73. Rated 5 out of 5

    Melissa

    easy to install….working fine so far

  74. Rated 5 out of 5

    Celesta

    I was a little worried that other replacement batteries were listed as having F2 terminals, while this was listed as F1, but if there was any difference in size between the new and old battery terminals, I couldn’t tell. Uverse backup is working fine. So far so good.

  75. Rated 5 out of 5

    CrankeeOldMan

    It’s a battery. It works. As I would expect. While it didn’t arrive as quickly as most orders, it did arrive in a satisfactory amount of time (7 days from the date that I ordered it) for me. It was a replacement for my Belkin battery back up connected to my AT&T Uverse service.

  76. Rated 5 out of 5

    MerriM

    Great battery works well

  77. Rated 5 out of 5

    nite owl

    works with my att uverse back up. I recommend the product

  78. Rated 5 out of 5

    nite owl

    works with my att uverse back up. I recommend the product

  79. Rated 5 out of 5

    Gphi

    This is the perfect replacement for my Belkin Backup Supply given to me when I had ATT Uverse. That OEM lasted for over 5years but started failing recently and promptly warning me to prepare to change it. I had found this as the best replacement based on the reviews ?- yeah … and price. The connectors on this battery replacement is better than the original. I like it. After replacement, it immediately resolved the warning light.

  80. Rated 5 out of 5

    Dobie

    Good price. Seems to be working just fine.

  81. Rated 5 out of 5

    JCM

    I have had this battery powering a modem back up unit for a few weeks. So far it has worked flawlessly.

  82. Rated 4 out of 5

    catpasswd

    item is easy to install and perfomed as expected.

  83. Rated 5 out of 5

    Web Customer

    I purchased this battery for my AT&T modem and it works fine. I will buy from them again.

  84. Rated 5 out of 5

    Customer

    I purchased this battery for my AT&T modem and it works fine. I will buy from them again.

  85. Rated 5 out of 5

    FS

    Excellent battery works like original.

  86. Rated 5 out of 5

    Web Customer

    Very Satisfied

  87. Rated 5 out of 5

    Customer

    Very Satisfied

  88. Rated 5 out of 5

    Rob

    The battery in our backup power supply died; ordered this one and it does what it’s supposed to do; simple to replace. Hoping it lasts as long as the original but only time will tell.

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Excellent
Mighty Max Battery
Based on 3463 reviews
Batteries Arrived in perfect condition. Arrived nearly fully charged, fits my Golden Buzzaround XLS HD battery compartment perfectly and addd more power snd zip
Just installed my Mighty Max 110AH gel batteries in my center console for my trolling motor. Excited for many years of reliable power.
So far so good, putting it back together
Battery arrived securely packed, installation took about a minute, and now my UPS works again for a fraction of the price of a new one. Time will tell how long it lasts, but other reviews indicate it will be years.
Good quality
Fit great
Very good batteries, i've had good experience with this brand. Bring back 2 ups just today ! Way cheaper than new ups.
Easy to install
Perfect fit. High quality item. Highly recommend.