This external battery cabinet provides extended battery runtime for applications that require longer backup time. Product Description: Liebert PSI-XR PSRT3-24VBXR - battery enclosure - lead acid - 7.2 Ah Device Type: Battery enclosure - external Dimensions (WxDxH): 17.3 in x 19.3 in x 3.5 in Weight: 63.9 lbs Battery: Lead acid 7.2 Ah Batteries Qty: 8 Manufacturer Warranty: 2 years warranty General Device Type: Battery enclosure - external Width: 17.3 in Depth: 19.3 in Height: 3.5 in Weight: 63.9 lbs Battery Quantity: 8 Technology: Lead acid Voltage Provided: 12 V Capacity: 7.2 Ah Miscellaneous Compliant Standards: FCC Class B certified, UL, cUL, EN 61000-3-2, UL 1778, EN 61000-3-3, RoHS, WEEE Manufacturer Warranty Service & Support: 2 years warranty Environmental Parameters Min Operating Temperature: 32 °F Max Operating Temperature: 104 °F Humidity Range Operating: 0 - 90%