MAIN OVERVIEW FEATURES: Battery Characteristics: Maintenance-freeBattery Chemistry: Lead AcidHot Swappable: YesMinimum Battery Life: 3 YearMaximum Battery Life: 5 YearOutput Voltage: 24 V DCHeight: 8.5"Width: 6.7"Depth: 17.3"Weight (Approximate): 69 lbCompatibility: APC Smart-UPS XLLimited Warranty: 2 Year