Page not found
That address doesn't exist. Try one of the calculators.
Know what it takes to keep the lights on.
Pick what you'd run in an outage. Get the exact generator or battery size, and which models can do it.
Size my generatorEssentials, one day
4,400W starting
- Running
- 2,600 W
- Battery instead
- 9,490 Wh
- Best fit
- Portable generator
01
Calculators
- AOpen →
What size generator do I need?
Starting and running watts, and the type that fits.
- BOpen →
Power station calculator
Battery size, output and runtime for each model.
- COpen →
Appliance wattage chart
Running and starting watts for 31 appliances.
- DOpen →
Food without power
What to keep and what to throw out after an outage.
- EOpen →
Sump pump backup
Battery size and surge for your pump.
02
Numbers you can check
Wattages come from Champion Power Equipment's published chart. Fridge and freezer energy comes from ENERGY STAR data. The 13 models are checked against each manufacturer's own spec page. Every formula is on the method page.