... capacity, load, voltage and so on.When AC fails or low battery, the UPS can be started and run ... LevelDistance is 1 meter<55db(A)DisplayLEDAC, Inverter, Low battery, Bypass, Overload, FailureLCDLCD indicates voltage,frequency, ... battery,load,temp.ProtectionAlarmAC Abnormal/Battery low voltage/Bypass/FailureProtectionBattery low/Overload/Short-circuit/Overheat/Cold start functionOverload125 ...