How long will the BLUETTI AC180 run a window AC 5,000 BTU?

About 4.5 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 1,152 Wh battery gives about 979 Wh after inverter losses. That is 23% of the battery an hour.

Will the BLUETTI AC180 start a window AC 5,000 BTU?

Yes. It needs about 1,350 W for a moment when the compressor starts, and the BLUETTI AC180 is rated for 2,700 W surge, 2.0 times that. Avoid starting other motors at the same moment.

Bluetti · Will it run?

Can the BLUETTI AC180 run a window AC 5,000 BTU?

Published October 14, 2026

Short answerYes

Yes. The BLUETTI AC180 runs a window AC 5,000 BTU for about 4.5 hours from a full charge. It needs about 1,350 W for a moment when the compressor starts, well within the 2,700 W surge rating, then about 450 W while running against 1,800 W continuous.

Add your other devices

Key numbers

Runtime: 4.5 hrs; from a full charge
Battery used per hour: 23%; 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

BLUETTI AC180

Battery: 1,152 Wh; about 979 Wh usable
Output: 1,800 W; continuous
Surge: 2,700 W; start-up peak

How we worked it out: 1,152 Wh × 0.85 ÷ 225 W average (450 W × 0.5 duty) = about 4.5 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

BLUETTI AC180

1,152 Wh · 1,800 W output · 2,700 W surge · 35.3 lb

Full specs and runtimes

Check price on Amazon Check price at Bluetti

We may earn a commission if you buy through these links. It doesn’t change your price. How we make money

What else the BLUETTI AC180 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 4.5 hours above is an estimate, not a measured result.

Common questions

How long will the BLUETTI AC180 run a window AC 5,000 BTU?: About 4.5 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 1,152 Wh battery gives about 979 Wh after inverter losses. That is 23% of the battery an hour.
Will the BLUETTI AC180 start a window AC 5,000 BTU?: Yes. It needs about 1,350 W for a moment when the compressor starts, and the BLUETTI AC180 is rated for 2,700 W surge, 2.0 times that. Avoid starting other motors at the same moment.