Sigma SP12-5.5RT 12V 5.5Ah Rechargeable Sealed Lead Acid Battery - Compatible Replacement

Stephen R. Buce: I ordered these batteries because they have F1 and F2 terminal sizes and because it was supposed to have recessed terminals. The terminal sizes were correct but not recessed. I still could use the batteries, but I wanted recessed terminals for a specific enclosure requirement. I still used the batteries but could not use the din rail metal enclosure, so the batteries are just sitting on the bottom of my machine.

United States on Oct 23, 2023

kendrakendra: Used it for my surge protector and battery back up.

United States on Mar 24, 2023

JTCANADA 2123: The battery works the way it should like OEM but the price is half of it, would definitely buy it again in the future.

United States on Jan 16, 2023

Howard: I had an old APC UPS that was just laying around and figured for the price of this battery, I may as well use it.

It works well and the price is right.

United States on Jan 02, 2021

Old Radio GuyOld Radio Guy: So far, these are working perfectly. Identical to the original B.B BP5.5-12RT battery. They fit like the original, and now my Cyberpower 635VA UPS's are all working again.

NOTE to DIY'ers who own digital multimeters: When you tear down your Cyberpower units, and measure the charge voltage, it will measure zero until you install a new battery, or at least one that can be charged. It's part of their protection circuitry.

The label side of the battery will be DOWN when installed, so you can't see the name in the attached picture.

United States on Jun 30, 2018