How long will the Goal Zero Yeti 1000 (6th Gen) run a window AC 5,000 BTU?

About 4 hours from a full charge. A window AC 5,000 BTU averages about 225 W (450 W running, on about 50% of the time), and the 998 Wh battery gives about 848 Wh after inverter losses. That is 27% of the battery an hour.

Will the Goal Zero Yeti 1000 (6th Gen) start a window AC 5,000 BTU?

Yes. It needs about 1,350 W for a moment when the compressor starts, and the Goal Zero Yeti 1000 (6th Gen) is rated for 3,600 W surge, 2.7 times that. Avoid starting other motors at the same moment.

Goal Zero · Will it run?

Can the Goal Zero Yeti 1000 (6th Gen) run a window AC 5,000 BTU?

Published October 15, 2026

Short answerYes

Yes. The Goal Zero Yeti 1000 (6th Gen) runs a window AC 5,000 BTU for about 4 hours from a full charge. It needs about 1,350 W for a moment when the compressor starts, well within the 3,600 W surge rating, then about 450 W while running against 2,000 W continuous.

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Key numbers

Runtime: 4 hrs; from a full charge
Battery used per hour: 27%; at 225 W average

Window AC 5,000 BTU

Running: 450 W; 400–550 W range
Start-up: 1,350 W
Average: 225 W; on 50% of the time

Goal Zero Yeti 1000 (6th Gen)

Battery: 998 Wh; about 848 Wh usable
Output: 2,000 W; continuous
Surge: 3,600 W; start-up peak

How we worked it out: 998 Wh × 0.85 ÷ 225 W average (450 W × 0.5 duty) = about 4 hours. The 0.85 covers inverter and battery losses. We do not test units ourselves; the numbers come from the official spec sheets and typical device draws. How we pick

Goal Zero Yeti 1000 (6th Gen)

998 Wh · 2,000 W output · 3,600 W surge · 35.3 lb

Full specs and runtimes

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What else the Goal Zero Yeti 1000 (6th Gen) runs

One device at a time, from a full charge.

Other power stations for a window AC 5,000 BTU

The nearest sizes that also run it.

Keep going

Real runtime depends on the model you own, room temperature and battery age. The 4 hours above is an estimate, not a measured result.

Common questions

How long will the Goal Zero Yeti 1000 (6th Gen) run a window AC 5,000 BTU?: About 4 hours from a full charge. A window AC 5,000 BTU averages about 225 W (450 W running, on about 50% of the time), and the 998 Wh battery gives about 848 Wh after inverter losses. That is 27% of the battery an hour.
Will the Goal Zero Yeti 1000 (6th Gen) start a window AC 5,000 BTU?: Yes. It needs about 1,350 W for a moment when the compressor starts, and the Goal Zero Yeti 1000 (6th Gen) is rated for 3,600 W surge, 2.7 times that. Avoid starting other motors at the same moment.