Electronics
Four phone chargers running watts and starting watts
Use these values as a planning range only. The conservative default for four phone chargers is 40 W running and 40 W starting.
| Load type | Low | Default | High |
|---|---|---|---|
| Running watts | 20 W | 40 W | 80 W |
| Starting watts | 20 W | 40 W | 80 W |
Source note
USB charger labels vary; default assumes several fast chargers in use at once.
Never operate a fuel-burning generator indoors, in a garage, on a porch, or near open windows. Use a listed transfer switch or interlock installed by a qualified electrician for home wiring, and verify actual device nameplates before buying equipment.
Related calculator pages
- Will a 3500 watt generator run an RV AC?
- Will a 4000 watt generator run a 15,000 BTU RV AC?
- Portable power station size for CPAP overnight
- Portable power station for CPAP with humidifier overnight
- Apartment outage generator alternatives for fridge, router, and lights
- Backup power size for oxygen concentrator and phone
- Will a 2000 watt inverter generator run 13,500 BTU RV AC, lights, and chargers?
- Will a 2000 watt inverter generator run 15,000 BTU RV AC, lights, and chargers?
- Will a 2000 watt inverter generator run RV AC and microwave?
- Will a 2000 watt inverter generator run RV fridge substitute, router, and fan?