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Runtime plus compatibility

How long will a power station run your appliance?

Enter the battery, running load, starting load, and duty cycle. The calculator separates the energy estimate from the output checks that decide whether the appliance can start.

Live estimate

Your battery and load

Start with a planning preset

Use the appliance nameplate or a plug-in power meter when possible. Peak output without a published duration is not a guarantee that every compressor or motor will start.

Calculated estimate

Estimated runtime

15.7 hours

Average load
51.5 W
Usable energy
811 Wh
Formula
usable Wh / average W
Compare source-checked 1kWh records

Compatibility first

How the current 1kWh records handle these inputs

A result can pass continuous output and still need a model-level surge check. That uncertainty stays visible instead of being turned into a false green check.

Product links open the official manufacturer page. Amazon is excluded. Confirm the current specification, price, and availability before buying.

01

Check output

Match voltage, connector, continuous watts, and starting demand before trusting any hour estimate.

02

Expose losses

Usable capacity and conversion efficiency stay editable because product conditions and load paths vary.

03

Verify the appliance

Nameplate watts and a plug-in meter are more useful than a generic appliance estimate.