... 1 max.BatteryTypeSealed, Maintenance free, Lead-AcidNominal DC Voltage240VDCBack-up time (full load)Depends on the capacity of the external ... msMaintenance Bypass SwitchYesLED indicatorsStatusLoad level/Battery level, Battery , Utility power, Inverter, Bypass, Overload, FaultAudible alarmBypassAlarm beeps every two minutesBattery ... D x H (mm)260 x 570 x 717 UPS--LCD Online ups power system 6-20Kva