APC 1632 VAh External Battery Pack - 48V DC - Maintenance-free Sealed Lead AcidBattery Type: Maintenance-free Sealed Lead AcidBattery Life: 3 Year to 5 YearCapacity: 1632 VAhOutput Voltage: 48 V DCHeight: 17Width: 7.7"Depth: 21.5"Weight (Approximate): 146.30 lbCompatibility: APC Smart-UPS SUA Models:2200VA3000VA"