Main FeaturesStandard Warranty: 2 YearManufacturer/Supplier: American Power Conversion CorpManufacturer Part Number: SUM48RMXLBP2UManufacturer Website Address: www.apc.comBrand Name: APCProduct Name: 48V Extended Run Battery PackMarketing Information: APC Smart-UPS XL Modular 48V Extended Run Battery Pack has Hot Swap Batteries, User-replaceable batteries and Rack/Tower convertibleProduct Type: Battery UnitBattery Type: Valve-regulated Lead Acid (VRLA) Hot-swappableBattery Life: 26297.44 Hour to 43829.06 HourOutput Voltage: 48 V DCDimensions: 3.4 Height x 17.0 Width x 26.7 DepthWeight (Approximate): 131.00 lbPackage Contents: 48V Extended Run Battery Pack , Installation Guide , User ManualCompatibility: SUM1500RMXL2U , SUM1500RMXLI2U , SUM3000RMXL2U , SUM3000RMXLI2U