Mighty Max ML3-12 12V 3.4Ah Rechargeable Battery - Perfect for UPS Backup Power

Florida Jeff: I love that the battery in each of my Uninterruptable Power Supplies is replaceable. This battery fit perfectly; the existing UPS is working flawlessly.

United States on Sep 09, 2023

R. Eden: My stock BE350G battery has F2 (1/8" bigger) battery terminals. This battery has F1 terminals *AS DESCRIBED*. The BE350G F2 connectors fit fine on the slightly smaller F1 terminals on this battery. So, reviews that it doesn't match are correct but it works fine!

United States on Jul 29, 2023

Pine Creek Books: A cost effective replacement for the RBC battery in my APC UPS. Fit perfectly.

United States on Mar 23, 2023

Aktreker: Have had two of these installed since October. During our 46 hour power outage, I ended up using the UPS, a limited amount each time, to power my 65" TV so we could get some news (had zero cell service). 2X a day for about 20 minutes each and we were able to get updates via that method 4.25 times before the UPS shut down.

United States on Feb 23, 2021

Autobahn97: I had a Cyberpower 1500VA (os so) battery backup that I purchased about 4 years ago at my local membership warehouse store and during the last power outage I found out the original batteries were too weak to run my PC. After some research I found these mighty max batteries that I learned that I could use 23 of to replace the oem battery pack on my cyberpower unit. essentially you replace 1 battery at a time to the OEM wire harness, optionally use some packing take to tape the two batteries together into a single 'pack' then slip it back into your battery backup and plug it back into the units connector and that's it - battery replaced. So far it seems to work well but only time will tell the longevity of these batteries.

United States on Oct 30, 2020