What this calculator includes
Rated capacity, inverter efficiency, battery reserve, appliance running watts, and optional duty cycle.
Fridge and appliance runtime
Calculate power station runtime
Estimate hours for a refrigerator or other load from watt-hours, running watts, efficiency, reserve, and duty cycle.
Usable Wh รท average W= estimated hours
Estimated runtime7.7 hours
Under the assumptions shown below.
- Conservative estimate
- 6.5 hours
- Usable battery energy
- 765 Wh
- Average appliance load
- 100 W
This is an estimate.
Temperature, battery condition, inverter losses, and appliance behavior affect actual runtime.
What it cannot predict
Startup compatibility, temperature effects, battery aging, firmware behavior, and exact appliance cycling.
For a refrigerator, start with the fridge runtime guide, then return here with your own watts and duty cycle.