This APC Easy UPS SRVL Lithium-ion Battery Pack, connected with compatible SRVL On-Line UPS, provides extended runtime during prolonged power outages. This 48V rackmount 2U SRVL battery pack is compatible with 1/2/3kVA SRVL Extended Runtime UPS models. The Rackmount Lithium-ion battery pack has a 5-year warranty. The Lithium-ion external battery has longer runtime and faster recharge time compared to VRLA generation. Its dimensions are 438mm (width) x 616mm (depth) x 86mm (height) 2U in total. The net weighs is 28.3kg. The Battery Pack is compatible with SRVRK1 rail kit sold separately. CE, UKCA, UN 38.3, IEC 62040-1, IEC 62619 Rail kit option is available. Rack-mount type