The Eaton PW9125-48VDC is a UPS system that requires a 12V 75Ah AGM replacement battery. The compatible Universal Power Group replacement is the UPG UB12750 12V 75AH Z1 AGM Battery Group 24 (UB12750), a 12V 75Ah AGM sealed lead-acid battery. This battery delivers up to 900 watts of standby power. It weighs 49.1 lb, uses Z1 terminals, measures 10.24 L x 8.27 H in, and has left polarity. This is a direct drop-in replacement for the Eaton PW9125-48VDC requiring no modification to the device.