Type: Battery Compatibility: for OL2000RMXL2U, OL3000RMXL2U Dimensions: 17.24" x 25.69" x 3.41" (2U) Features: Form Factor - 2U configuration supports both rack and tower mounting Scaleable - Up to 4 battery packs can be daisy-chained together for increased runtimes. Metal Housing - Rigid metal construction allows for placement in areas with a demanding environment. Battery Data Link - All extended battery packs transmit diagnostic vitals directly to the main UPS.