APC Easy UPS Online SRV 240V External Battery Pack, 3U RM, Lead Acid Battery

Extended-run battery systems provide flexible runtime to critical Smart-UPS applications.
• Multiple battery pack configuration : Connect up to 10 battery packs for extended runtime applications.
• Advanced battery management included : Embedded monitoring at the cell, module, and cabinet level provides a clear picture of battery runtime and health, with the added benefits of predictable, consistent runtime performance, and stable cell health.
• Battery Type: Lead-acid battery