1, PV Inverter 2, Pure sine wave 3, With charger inside 4, ... complex load…Sensitive short circuit protectionWhen short circuit happens, Inverter will shut down and giving warning. Sensitive intelligent overload protectionOn ... Statusworking & loading & batteryInputVoltage140~275 VacFrequency45~65 HzOutputVoltage220Vac ±1% for inverter; 220Vac ±8% for regulatorFrequency50/60 Hz ± 0.5Hz, subject ...