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Can the EcoFlow DELTA 3 Classic run a CPAP machine?

Yes. The EcoFlow DELTA 3 Classic powers a CPAP machine for a full day of use: 8 h a day takes 88 Wh, and a full charge gives 3.3 days of running time.

Updated

The answer in numbers

  • Enough for a full day

    Verdict

  • 3.3 days

    Running time, full charge

  • 870Wh

    Usable at 85%

  • 11 / 3,600W

    Start needed / surge

The three checks

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

CPAP on the EcoFlow DELTA 3 Classic: power checks
CheckNeedsStation hasResult
Running watts against continuous output11 W1,800 WPasses
Starting watts against surge rating11 W, no start surge3,600 WPasses
A full day at 8 h a day88 Wh870 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 Classic, low to high
CaseRunning wattsRunning time
Low end of the class7 W5.2 days
Typical11 W3.3 days
High end of the class20 W43.5 h

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 Classic, with a CPAP machine
Power stationCapacityVerdictRunning time
EcoFlow RIVER 3 Plus286 WhEnough22.1 h
BLUETTI Elite 100 V21,024 WhEnough3.3 days
Anker SOLIX C1000 Gen 21,024 WhEnough3.3 days
DJI Power 10001,024 WhEnough3.3 days

The EcoFlow DELTA 3 Classic

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

EcoFlow's page for the DELTA 3 Classic (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.