The APC Back-UPS 1250 is a UPS system that requires a 12V 26Ah AGM replacement battery. The compatible Universal Power Group replacement is the UPG UB12260T 12V 26AH L2 AGM Battery (UB12260T), a 12V 26Ah AGM sealed lead-acid battery. This battery delivers up to 312 watts of standby power. It weighs 17.9 lb, uses L2 terminals, measures 6.5 L x 6.89 H in, and has left polarity. This is a direct drop-in replacement for the APC Back-UPS 1250 requiring no modification to the device.
