APC Easy UPS 3S Battery String Battery string for use with Easy UPS 3S with internal battery slots and Easy UPS 3S Empty Modular Battery Cabinet (E3SXR6). Each battery string consists of four 7.2 Ah battery modules. Product or component type Battery module Range compatibility Easy UPS 3S Battery type VRLA Range of product Easy UPS 3S Number of battery free slots 0 Number of battery filled slots 0 Device mounting Enclosed battery cartridge Battery power in VAh 0 VAh Ambient air temperature for operation 0…40 °C Operating altitude 0...3281 ft Relative humidity 0…95 % non-condensing Ambient air temperature for storage -15…40 °C Storage altitude 0.0000000000…15240.0000000000 M Storage Relative Humidity 0…95 % non-condensing