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Can the EcoFlow DELTA 3 Max run a CPAP machine?

Yes. The EcoFlow DELTA 3 Max powers a CPAP machine for a full day of use: 8 h a day takes 88 Wh, and a full charge gives 6.6 days of running time.

Updated

The answer in numbers

  • Enough for a full day

    Verdict

  • 6.6 days

    Running time, full charge

  • 1,741Wh

    Usable at 85%

  • 11 / 4,800W

    Start needed / surge

The three checks

CPAP on its own, with nothing else plugged in, against the published ratings of the EcoFlow DELTA 3 Max.

CPAP on the EcoFlow DELTA 3 Max: power checks
CheckNeedsStation hasResult
Running watts against continuous output11 W2,400 WPasses
Starting watts against surge rating11 W, no start surge4,800 WPasses
A full day at 8 h a day88 Wh1,741 Wh usablePasses
For medical equipment, confirm the power needs with the device maker and keep a backup plan. This page is not medical advice.

How long it runs across models

The appliance class spans a range of models. Running time on a full charge at the low, typical and high figure in the data:

CPAP on the EcoFlow DELTA 3 Max, low to high
CaseRunning wattsRunning time
Low end of the class7 W10.4 days
Typical11 W6.6 days
High end of the class20 W3.6 days

Watts vary by model and age. Check the label on your own appliance and enter it for an exact answer.

Keeping up on solar

At 4 peak sun hours, counting 75% of the panel rating: 200 W of panels bring in about 600 Wh a day, more than the 88 Wh it uses at 8 h a day, so the station keeps up. 500 W of panels bring in about 1,500 Wh a day, more than the 88 Wh it uses at 8 h a day, so the station keeps up.

Other options

The smallest EcoFlow model in the data that is enough for a full day of a CPAP machine is the EcoFlow RIVER 3 Plus (286 Wh). The nearest capacities from any brand:

The smallest EcoFlow model that is enough, then the stations closest in capacity to the EcoFlow DELTA 3 Max, with a CPAP machine
Power stationCapacityVerdictRunning time
EcoFlow RIVER 3 Plus286 WhEnough22.1 h
Anker SOLIX C2000 Gen 22,048 WhEnough6.6 days
EcoFlow DELTA 3 Max Plus2,048 WhEnough6.6 days
DJI Power 20002,048 WhEnough6.6 days

The EcoFlow DELTA 3 Max

Everything the EcoFlow DELTA 3 Max runs, its recharge times and full specifications

EcoFlow's page for the DELTA 3 Max (opens in a new tab)

Enough Watts may earn a commission when you buy through links on this page. It never changes the math or the ranking.