Power station runtime calculator

Enter your power station’s capacity and your appliance’s wattage. For cycling appliances like fridges, lower the duty cycle to match how often the compressor runs.

Power station Appliance

Adjust the numbers

Check the label on your appliance and enter its real wattage.

Station capacity (Wh) Appliance watts Startup watts Duty cycle (%) How many Output

The formula

Runtime (hours) = Capacity (Wh) × 0.85 ÷ Average watts

Use 0.92 instead of 0.85 for devices running from the 12V or USB ports. Full methodology →