... portable battery and get power to run your appliances The inverter can automatically detect low battery voltage and shut down to ... overload protection Automatic switch and transfer time: AC line to inverter, inverter to AC line, and ten minutes transfer time Compliant standards ... , ±8% Output power: 1,000W, 4.4A Output power (peak watts): 2,000W Output frequency range: 50 or 60Hz Output waveform ...