APC AV S Type Extended Battery Pack - Battery enclosure - 8 x battery - lead acid - 9 Ah - 2U - black - for P/N: SMX3000LVUS, SMX3000RMLVUS, SMX3KRMLVNCUS, SMX750US, SRT5KRMXLTUS, SRT5KRMXLW-TW

Rack mountable. Includes horizontal, vertical and toolless-mount capabilities. Temperature-compensated battery charging. Prolongs battery life by regulating the charge voltage according to battery temperature. Disconnected battery notification. Warns when a battery is not available to provide backup power. Scalable runtime. Allows additional run time to be quickly added as needed. This product is heavy and/or oversized and may need more than one person to handle.