... off after ten seconds to conserve battery power when no power needs are detected. h).Battery level indicatorsLED ... dischargeBypassAutomatic transferOn overload and UPS failureBefore UPS power-onDefault “NO”, user adjustable to “YES”Voltage range80~264VAC ... vice versaLED indicatorsStatusLoad level/battery level, battery , utility power, inverter, bypass, overload, faultAudible alarmBypass, on battery ...