How long will the BLUETTI Apex 300 run a portable oxygen concentrator?

About 2 days from a full charge. A portable oxygen concentrator averages about 40 W, and the 2,765 Wh battery gives about 2,350 Wh after inverter losses. That is 1.7% of the battery an hour.

Is the BLUETTI Apex 300 enough backup for a portable oxygen concentrator?

Only as a short bridge. It covers about 2 days from a full charge. A power station should never be your only backup for medical equipment: ask your equipment supplier what they provide in an outage, register with your utility’s medical-needs program, and keep the settings your prescriber gave you.

Bluetti · Will it run?

Can the BLUETTI Apex 300 run a portable oxygen concentrator?

Published October 15, 2026

Short answerYes

Yes. The BLUETTI Apex 300 runs a portable oxygen concentrator for about 2 days from a full charge. At about 40 W on average it uses 1.7% of the battery an hour, and the 3,840 W output is far more than it needs.

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Key numbers

Runtime: 2 days; from a full charge
Battery used per hour: 1.7%; at 40 W average

Portable oxygen concentrator

Running: 40 W; 15–120 W range
Start-up: 120 W
Average: 40 W; runs all the time

BLUETTI Apex 300

Battery: 2,765 Wh; about 2,350 Wh usable
Output: 3,840 W; continuous
Surge: 7,680 W; start-up peak

How we worked it out: 2,765 Wh × 0.85 ÷ 40 W = about 2 days. 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 Apex 300

2,765 Wh · 3,840 W output · 7,680 W surge · 83.8 lb

Full specs and runtimes

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What else the BLUETTI Apex 300 runs

One device at a time, from a full charge.

Other power stations for a portable oxygen concentrator

The nearest sizes that also run it.

Keep going

Real runtime depends on the model you own, room temperature and battery age. The 2 days above is an estimate, not a measured result.

Common questions

How long will the BLUETTI Apex 300 run a portable oxygen concentrator?: About 2 days from a full charge. A portable oxygen concentrator averages about 40 W, and the 2,765 Wh battery gives about 2,350 Wh after inverter losses. That is 1.7% of the battery an hour.
Is the BLUETTI Apex 300 enough backup for a portable oxygen concentrator?: Only as a short bridge. It covers about 2 days from a full charge. A power station should never be your only backup for medical equipment: ask your equipment supplier what they provide in an outage, register with your utility’s medical-needs program, and keep the settings your prescriber gave you.