Why does the BLUETTI AC180 run a space heater for so little time?

Because it draws a lot of power. A space heater averages about 750 W (1,500 W running, on about 50% of the time), and the 1,152 Wh battery gives about 979 Wh after inverter losses. That is 77% of the battery an hour.

What would run a space heater longer?

A bigger battery: the 2,042 Wh Jackery Explorer 2000 v2 about 2.5 hours and the 2,048 Wh Anker SOLIX C2000 Gen 2 about 2.5 hours.

Bluetti · Will it run?

Can the BLUETTI AC180 run a space heater (1500W)?

Published October 12, 2026

Short answerYes, briefly

Yes, but only for about 1.5 hours. A space heater averages about 750 W, and the BLUETTI AC180 holds 1,152 Wh (about 979 Wh usable after inverter losses), so the battery runs down fast. Fine for a short job, not for a whole day.

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Key numbers

Runtime: 1.5 hrs; from a full charge
Battery used per hour: 77%; at 750 W average

Space heater (1500W)

Running: 1,500 W; 750–1500 W range
Start-up: 1,500 W
Average: 750 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 ÷ 750 W average (1,500 W × 0.5 duty) = about 1.5 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

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What else the BLUETTI AC180 runs

One device at a time, from a full charge.

Other power stations for a space heater

The nearest sizes that run it longer.

Keep going

Real runtime depends on the model you own, room temperature and battery age. The 1.5 hours above is an estimate, not a measured result.

Common questions

Why does the BLUETTI AC180 run a space heater for so little time?: Because it draws a lot of power. A space heater averages about 750 W (1,500 W running, on about 50% of the time), and the 1,152 Wh battery gives about 979 Wh after inverter losses. That is 77% of the battery an hour.
What would run a space heater longer?: A bigger battery: the 2,042 Wh Jackery Explorer 2000 v2 about 2.5 hours and the 2,048 Wh Anker SOLIX C2000 Gen 2 about 2.5 hours.