How many nights will the Goal Zero Yeti 1000 (6th Gen) run a CPAP without a humidifier?

About 15 nights of 8 hours (121 hours in total). A CPAP without a humidifier averages about 7 W, and the 998 Wh battery gives about 848 Wh after inverter losses.

How long does it last with a heated humidifier?

With the heated humidifier on (about 34 W), about 3 nights (25 hrs). Without it (about 7 W), about 15 nights (5 days). Turning the humidifier off is the easiest way to stretch a charge.

Is the Goal Zero Yeti 1000 (6th Gen) enough backup for a CPAP without a humidifier?

Only as a short bridge. It covers about 15 nights (121 hours) 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.

Goal Zero · Will it run?

Can the Goal Zero Yeti 1000 (6th Gen) run a CPAP (no humidifier)?

Published October 11, 2026

Short answerYes

Yes. The Goal Zero Yeti 1000 (6th Gen) runs a CPAP without a humidifier for about 15 nights (121 hours) from a full charge. At about 7 W on average it uses 0.8% of the battery an hour, and the 2,000 W output is far more than it needs.

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Key numbers

Nights per charge: 15 nights; 5 days
Battery used per hour: 0.8%; at 7 W average

CPAP (no humidifier)

Running: 7 W; 5–15 W range
Start-up: 10 W
Average: 7 W; runs all 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 ÷ 7 W = about 5 days (8 hours a night). 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 CPAP without a humidifier

The nearest sizes that also run it.

Keep going

Real runtime depends on the model you own, room temperature and battery age. The 5 days above is an estimate, not a measured result.

Common questions

How many nights will the Goal Zero Yeti 1000 (6th Gen) run a CPAP without a humidifier?: About 15 nights of 8 hours (121 hours in total). A CPAP without a humidifier averages about 7 W, and the 998 Wh battery gives about 848 Wh after inverter losses.
How long does it last with a heated humidifier?: With the heated humidifier on (about 34 W), about 3 nights (25 hrs). Without it (about 7 W), about 15 nights (5 days). Turning the humidifier off is the easiest way to stretch a charge.
Is the Goal Zero Yeti 1000 (6th Gen) enough backup for a CPAP without a humidifier?: Only as a short bridge. It covers about 15 nights (121 hours) 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.