... hours up to 90%Battery testAuto-test, Transfer to battery mode adjustableProtectionshardware protectionsinput Breaker, Output ... Off), audible alarmsSoftware ProtectionsDischarging batteries, Battery charger working, Inverter working, Emergency Power Off, manual Shutdown, Bypass ... v power supply fail, inverter overvoltage, 200% overload on each line, transfer fail, inverter voltage out of range, ...