... offer long backup time, short recharge, the temperature compensation system helps to increase the life of batteries ... 1, parallel and redundant•High efficiency > 92% •Dual Input (optional)•100% unbalanced load allowed•Cold start function•Smart ... Bypass breaker; DC Fuse, Fan, redundant power supply; temperature sensor, EPO (Emergency Power Off), audible alarmsSoftware ProtectionsDischarging batteries, ...