APC Smart-UPS On-Line SRT Rackmount Battery Pack for 2.2kVA Extended runtime model 72V This APC Smart-UPS battery pack connected with SRT On-Line UPS, provides extended runtime to SRT mission critical applications. This 72V SRT rackmount extendable runtime battery pack is compatible with 2.2kVA SRT rackmount Smart-UPS extended runtime models. Embedded monitoring at the cell, module, and cabinet level provides data of battery runtime and health. Number of rack unit 2U Battery type Lead-acid battery Provided equipment- Documentation CD, Installation guide, Rack mounting brackets Number of battery free slots 0 Number of battery filled slots 0 Battery voltage 72 V Number of battery replacement quantity 2 Ambient air temperature for operation 0…40 °C Operating altitude 0...10000 ft Relative humidity 0…95 % non-condensing Ambient air temperature for storage -15…45 °C Storage altitude 0.00…15240.00 m Storage Relative Humidity 0…95 % non-condensing Mounting mode- Rack mounted Replacement Battery -APCRBC141 Compatible Mounting- SRTRK3, SRTRK4