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. It is a lead-acid battery with a 2-year warranty.