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.

Only logged in customers who have purchased this product may leave a review.

Excellent
Mighty Max Battery
Based on 5436 reviews
Llegaron muy bien y cargadas listas para colocarse
This battery was half the price as a comparable battery from the local farm store and the same size, voltage, and composition.
I have used the Mighty Max replacement batteries in all my UPS’s for years. I’ve never had a problem with them being in use for at least 4-5 years.

Why pay more when Mighty Max is so reasonably priced.
Perfect fit
I am using these two 12V batteries to repack my 24V drop-in battery unit for my electric lawnmower. After installing the replacement cells I was able to try out my mower to my satisfaction.
Original battery had a problem and a new replacement was sent out. That's Great Service and excellent customer relations!!
This battery is for a Stanley Jump box. Perfect replacement. To help future customers I've included some pics of the replacement process. The battery is accessed via the back panel. Remove all the Phillips head screws (2 sizes) and the back panel to access the battery. I used an 8mm wrench to disconnect the wires on the battery.
Poseidon came properly packaged and arrives fast I purchased from Home Depot for my 2018 turbo s dual battery setup going to try these two batteries out and I'll keep you updated on the status and how long they last big system fast car running the dunes it's dune season let's go
Very Heavy Battery with excellent fit & finish. Arrived with full charge.
You receive this paper slip with your new battery- register online and receive an additional 3 months of warranty! You register online and then told - oh! you also have to post an online review with a photo to get those extra months! So, here ya go.
I ordered the batteries from Home Depot. They arrived sooner than expected. They were a performance replacement, and Granny is up and running the seats again!