Rated 4.82 out of 5 based on 55 customer ratings
(55 customer reviews)

$21.99

12V 8Ah Compatible Battery for APC Back-UPS CS 500, BK500, BK500BLK

Availability: In stock

SKU: ML8-121230111117 Category:
Delivering power when you need it, the Mighty Max ML8-12 12 Volt 8 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 ML8-12 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: 8 AH
Chemistry: SLA, AGM
Terminal: F1
Battery Dimensions:
5.94 in x 2.56 in x 4.02 in
Weight: 4.96 Lbs
Warranty
1 Year
Weight

4.96 Lbs

Height

4.02

Warranty

1 Year

Length

5.94

Quantity

1

Terminal

.187" – F1

Chemistry

SLA / AGM

Width

2.56

Amp Hour

8Ah

Volts

12V

55 reviews for 12V 8Ah Compatible Battery for APC Back-UPS CS 500, BK500, BK500BLK

  1. Rated 5 out of 5

    Michael M. (verified owner)

  2. Rated 5 out of 5

    Tworld

    Can’t beat the Price over the original. Just as heavy as the original. It works.

  3. Rated 5 out of 5

    Jeremy

    Everything about this has been great. Battery arrived quickly, was an exact fit. Very easy to replace and passed all tests in the ups.

  4. Rated 3 out of 5

    J C

    Item arrived a few days late than originally projected. When it did arrive, packaging material (corrugated box) was wet and torn with wrapped Saran Wrap with a sticker indicating received damaged. When I opened the wet:damaged box. I still Installed the battery on my UPS and seems to be working okay. Crossing my fingers it lasts and the battery wasn’t completely soaked in water to cause some short…. Have it a 3 star due to poor arrival condition. I have no issues with the battery at least for the moment.

  5. Rated 5 out of 5

    S

    Received defective. Contacted seller. Replacement received. It is great to do business with a responsible company who takes care of its customers. Longevity not rated will update accordingly.

  6. Rated 5 out of 5

    Rollins

    works great, the directions was easy to follow

  7. Rated 5 out of 5

    Doit2it

    Save some money. Don’t pay twice the amount for the APC replacement battery. This battery is working fine in my APC 500 (BK500BLK). I can’t account for longevity, but the backup is working perfectly.

  8. Rated 5 out of 5

    bugsy

    It was what I expected it to be.

  9. Rated 5 out of 5

    sclahiga

    Had older APC with dead battery. Needed a new one. Cost for new was more than $50. Replaced battery for less than $20. Works like new.

  10. Rated 5 out of 5

    N. Weiler

    I use this in my APC CS-500 to keep my computer up & running during power interruptions. Lasts a good long time.

  11. Rated 5 out of 5

    Michael

    Free shipping on a UPS battery. The battery dropped into the case flawlessly, I connected the posts and away I went. These usually last about 5 years for me, we’ll see how this brand works out and I will update.

  12. Rated 4 out of 5

    ANTHONY WELCH

    use it for an APC back-up

  13. Rated 4 out of 5

    Kal Omer

    Good value

  14. Rated 5 out of 5

    Roland Petit

    Always been satisfied with “Mighty Max” AGM batteries.

  15. Rated 5 out of 5

    Anthony J. Frates

    I installed this battery as a replacement into an APC CS 500 Back-UPS on Feb. 20, 2018. When I came into the office on Oct. 12, 2020, the unit was squealing and in fact would not stop until I unplugged the unit and removed the battery completely. The manufacturer indicates that this battery has a long life. I would have expect perhaps another six months to one year of longevity, but for the price still can’t overly complain about the battery’s service life. The APC unit was plugged in continuously to protect a PC that was minimally used during this period, perhaps three for four hours per day for no more than four days per week.

  16. Rated 5 out of 5

    F. S. Moss

    Saved considerable money buying this as a replacement battery for my APC UPS. Easy install as well.

  17. Rated 5 out of 5

    Velvel D

    Excellent battery, fits the APC CS 500 exactly. Works well as it supposed to. Much cheaper than OEM, hopefully will last as long or close to it to justify savings. Fast shipper arrived sooner then expected.

  18. Rated 5 out of 5

    Waffles00

    Lots of life and charge and discharge without generating heat. I used 2 of them in a power wheels car for the kids. old battery would last 20 minutes, 2 of these will last 4-5 hours.

  19. Rated 5 out of 5

    SW

    Thank you.

  20. Rated 5 out of 5

    Dustin S.

    Bought 3 for the different APC 500VA units I have at home and all kicked right on and cleared any alarms they had. No issues thus far!

  21. Rated 5 out of 5

    Details

    It works and appears to be well made. Time will tell

  22. Rated 5 out of 5

    Web Customer JH

    Performs like any APS battery, but at a lower cost

  23. Rated 5 out of 5

    Customer JH

    Performs like any APS battery, but at a lower cost

  24. Rated 5 out of 5

    Leo

    The price for the battery is very low and after easy installation, it works without any issues. I’ve not tested how long it would hold the charge after no power but I believe the time will be sufficient enough to safely shut down connected devices. It was never intended to be the power source for a very long time anyway.

  25. Rated 5 out of 5

    Leo

    The price for the battery is very low and after easy installation, it works without any issues. I’ve not tested how long it would hold the charge after no power but I believe the time will be sufficient enough to safely shut down connected devices. It was never intended to be the power source for a very long time anyway.

  26. Rated 5 out of 5

    Richard S

    I realized when I ordered the battery that it had F1 connectors but the UPC backup needed F2 connectors. Therefore, you need to also purchase a pair of F1 to F2 adapters.

  27. Rated 5 out of 5

    Dave

    Arrived on time, fit perfectly, and have had no troubles with the APC CS 500 UPS since installation about a month ago. Has not been tested in an outage yet, will update if any trouble experienced.

  28. Rated 5 out of 5

    K

    works great

  29. Rated 5 out of 5

    Al

    it works well. I liked the first one so well, I bought a 2nd for another unit I have.

  30. Rated 5 out of 5

    Logistics Guy

    Replaced an aged battery backup that saw a service life of 4-5 yrs. If the quality has been maintained we should expect another 4-5 yrs on this one too.

  31. Rated 5 out of 5

    Chuck Clemmer

    Exact replacement

  32. Rated 5 out of 5

    Richard Motley

    Bought this battery for a CyberPower 685AVR. Battery came on time and package very well. Took the old out and inserted the new one with 0 problems. Left all recepticals unplugged and plugged in Backup to charge overnight.. plugged in my computer and router, etc the following day and had an outage shortly after and the backup with new battery worked flawlessly.

  33. Rated 5 out of 5

    C Mc

    Perfect OE replacement and a better value. Timely shipping of a heavy item.

  34. Rated 5 out of 5

    Y. Wang

    Very easy to use it to replace my failed original APC battery and it works as expect.

  35. Rated 5 out of 5

    Y. Wang

    Very easy to use it to replace my failed original APC battery and it works as expect.

  36. Rated 5 out of 5

    J. Strong

    Great battery and great price!

  37. Rated 5 out of 5

    Hana

    The battery came 3 days before the expected delivery date, and was well packaged. I put it into my APC Back-ups xs1500, as a replacement for a dead battery, and it works great.

  38. Rated 5 out of 5

    M. Cohen

    Good value for cost. While not an exact replacement, easy to install (need to add small piece foam tape) and does the job.

  39. Rated 4 out of 5

    eman

    works for me.

  40. Rated 4 out of 5

    eman

    works for me.

  41. Rated 4 out of 5

    Dal Dude

    It arrived quickly and works great saved a lot of money compared to buying a new UPS. when I did a test on it It gave me a 16 minute run time before the UPS started beeping real fast and I had to plug it back in to avoid having my PC cut off.Great Price Great Seller would recommend.

  42. Rated 5 out of 5

    basil campbell

    Arrived quick… good price… battery has been installed for a few weeks and is working fine….

  43. Rated 5 out of 5

    Web Customer

    Got what i wanted at a great price and speedy delivery.

  44. Rated 5 out of 5

    Customer

    Got what i wanted at a great price and speedy delivery.

  45. Rated 4 out of 5

    Web Customer

    So Far So Good. Easy to Install and Delivered on Time.

  46. Rated 4 out of 5

    Customer

    So Far So Good. Easy to Install and Delivered on Time.

  47. Rated 5 out of 5

    pabsh90

    Great price and quick shipping! Easy change out of old battery. No issues.

  48. Rated 5 out of 5

    Customer

    Great price and quick shipping! Easy change out of old battery. No issues.

  49. Rated 5 out of 5

    Placido H. Serafin

    Received timely and product works OK.Thank You

  50. Rated 5 out of 5

    bODYbOD

    What more can I say. Arrived quickly, I installed, works fine.

  51. Rated 5 out of 5

    bODYbOD

    What more can I say. Arrived quickly, I installed, works fine.

  52. Rated 4 out of 5

    Pineywoods

    Excellent

  53. Rated 5 out of 5

    Robert S. Huffman

    Great product at a great price.

  54. Rated 5 out of 5

    Michael D Urbanski

    Nice

  55. Rated 5 out of 5

    Carl

    The battery arrived promptly and in great condition, installed it in a few minutes in my APC backup unit. Works perfectly.

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Excellent
Mighty Max Battery
Based on 3443 reviews
My fifth purchase of model ML 7-12 for my gate and kids toys. Always good battery T a good price.
Battery ordered on Friday , arrive next day by UPS on Saturday. This product is for a small generator. The price was right and the service/ delivery amazing.
Battery arrived perfectly packaged.
Previous one run for 2 years in my power supply.
Battery work and fit in my viking jump box. Just fine it came very fast in shipping
Box is pretty beat up and inside styrofoam protecting is broken so it must’ve taken a pretty bad fall at one time I hope that didn’t harm the battery itself
Arrived soon then expected
Good value hope it’s as good as they say
Arrive quick, great packeging and works perfect
Easy Purchase, Fast Shipment & Delivery, Available when others do not have in stock. Fully charged right out of the box. 3 Year warranty! Made in USA.
Great! Arrived in 3 days, put it in hooked it up and it works.