Anker SOLIX F3800 Plus
- 3,840 Wh · 6,000 W output
- Solar input up to 3,200 W
- 136.7 lb · expandable
Runs a window air conditioner ≈ 5.9 h
Check price on AmazonHow we calculate it
Runtime = capacity (Wh) × 0.85 ÷ 550 W
For a hot night you need about 5,180 Wh (4,400 Wh of energy plus inverter losses). Running other devices at the same time? Add them in the runtime calculator.
Tips to run your window air conditioner longer
- A window AC needs 2–3× its running watts to start; stations with under 1,800 W surge often trip.
- Inverter (variable-speed) window ACs use 30–50% less energy and start softly.
- Cool one small room and close the door instead of the whole home.
Frequently asked questions
How long will a 1000Wh power station run a window air conditioner?
About 1.5 h, based on an average draw of 550 W and 85% inverter efficiency.
How many watts does a window air conditioner use?
Typically about 700 W while running and up to 1,800 W for a moment at start-up. Averaged over time it draws about 550 W because it cycles on and off.
What size power station do I need for a hot night?
About 5,180 Wh, more than most single units. Consider an expandable model with extra batteries, solar recharging, or a generator.