Outage comfort guide
How long will a power station run a television?
TV power varies with screen size, brightness, picture mode and connected devices. Add a streaming box, antenna amplifier or sound system to the average load when they must run too.
Backup power runtime
Estimate steady-load runtime after inverter losses and a safety reserve.
Runtime = capacity × efficiency × usable battery share ÷ average load. Motor surge, temperature, battery age and device cycling can change real-world runtime.
What changes the answer?
Use the whole entertainment load
A television may not be the only device drawing power. Include the modem, router, streaming box, game console or audio equipment that is required for the way you plan to use it.
Brightness and picture mode affect watts
A bright HDR picture can draw more than an energy-saving mode. Measure the TV while showing representative content when you need a closer result.
Reserve power for communications
During a long outage, entertainment may be lower priority than phones, internet equipment, lighting or medical needs. Model those loads separately before assigning the remaining capacity to a television.
Use this result as a planning range
Keep the power station ventilated and dry, and do not exceed its continuous output rating when other devices share the outlets.
Review the formulas and public sources in our methodology.
Official references
- Analyzing household electricity loadsU.S. Department of Energy
- Food safety during a power outageFoodSafety.gov
- Generator and carbon-monoxide safetyU.S. Consumer Product Safety Commission