... battery management Crest factor1:3 Wide input range High frequency online UPSKey FeaturesTrue on-line double conversion ... 286VACTransfer Time0 ms; less than 4 ms from inverter to bypass and vice versaLED IndicatorsStatusLoad level / Battery ... level, Battery , Utility Power, Inverter, Bypass, Overload, FaultAudible AlarmBypass, On battery mode, Battery ...