







🔋 Stay charged, stay unstoppable — power your day with confidence!
The Mighty Max Battery 12V 9Ah SLA Replacement Battery (2 Pack) offers a maintenance-free, spill-proof design with UL certification, delivering reliable high discharge performance and durability across extreme temperatures and vibrations. Perfect for CyberPower 1500 AVR and similar devices, it ensures long-lasting power backup with a full one-year warranty.





B**.
Perfect for the Burromax Dirt Bike!
I bought this battery pack to replace the battery on my kid’s Burromax dirt bike, and it works great! The installation was simple, and the bike runs like new again. The power holds up well, and my kid has been having a blast with it.It’s a solid, reliable replacement, and the two-pack is a great value. If you’re looking for a dependable battery for similar needs, this is a fantastic option on a budget!
J**E
Half the price of brand name equivalent…
No frills battery at half the price of big brand equivalent. These work just fine in my UPS and seem to last around 2-3 years. YMMV.
J**.
Perfect choice
These fit perfectly in my CyberPower 1500PFCLCD UPS. It is back to working great with these batteries. They arrived quickly, and in great shape. Well packed as you can see the heavy cardboard box and the 2 inner cardboard box that is surrounded with a dense foam. These were tight in the inner boxes so no movement inside. Price was better than the competition and I have had good service life with MightyMax batteries in the past.
C**D
Work great, but HOO BOY! Difficult to install
These were purchased to replace the batteries in a UPS. The problem with installation, honestly, was not with the batteries themselves, but with the UPS. The batteries are arranged in such a way that is a real PITA to install new batteries. I've replaced batteries in different UPSs before, but this one was the most difficult and time-consuming.Got it done, though, and the batteries are doing a great job!
L**S
Great Replacement Battery
Easy to install, works as advertised
J**S
Great price, perfect fit
My UPS started throwing an error code and alarm. Found out it was for a battery issue. These were half the price of the ones from the manufacturer, arrived early and fully charged even. Definitely recommend this brand, will buy again in a few years when these go bad.
C**R
Mighty Max Battery 2 Pack 12V9Ah F2 terminals
Works great. These batteries are just as good as the OEM at half the price if you take five minutes and connect the new batteries in series. The OEM batteries are ready to go with the spacer/connector already installed. Will purchase again.
J**Y
Worked like new - Cyberpower 1500VA - AVR
After a few years, my UPS would power off randomly. It seemed to be doing a self-test and then dying. I replaced the original batteries with these, which has fixed the problem. Be aware that the Cyberpower 1500VA requires two (2) batteries, so you'll need to replace both. The second one isn't spare. Installation took about 10 minutes. There are good videos on YouTube on how to replace them. There are two different versions. One has one screw to remove the front panel. Mine had two screws. There are videos for both types. Silly input, but remove the plastic covers from the new batteries before trying to attach the terminals. The original batteries had plastic covers you slid the terminals under. These just come off, and the plastic on the cable protects the terminal. I have yet to use their customer service. Still, it impressed me that they included instructions on returning them if there was a problem (you can't usually return UPS batteries through Amazon). If there are problems, I'll try to update the review, but I'm happy for now.
Trustpilot
2 weeks ago
2 days ago