Home Power Facts

Can a portable power station run a CPAP (no humidifier)?

Yes. All 15 portable power stations we track can run a CPAP (no humidifier), for about 5.1 h (EcoFlow RIVER 3 Plus) to 2.7 days (Anker SOLIX F3800) on a full charge.

Specs verified 2026-10-18.

Runtime by power station

Power stationUsable capacityCan it run it?RuntimePeak vs. surge limitPrice
EcoFlow RIVER 3 Plus231 WhYes5.1 h45 W / 1,200 WCheck price
Jackery Explorer 300247 WhYes5.5 h45 W / 500 WCheck price
DJI Power 1000775 WhYes17.2 h45 W / 4,400 WCheck price
EcoFlow DELTA 3 Classic819 Wh (est.)Yes13.2 h45 W / 3,600 WCheck price
EcoFlow DELTA 2850 WhYes18.9 h45 W / 2,700 WCheck price
Anker SOLIX C1000897 WhYes19.9 h45 W / 2,400 WCheck price
Jackery Explorer 1000 v2910 WhYes20.2 h45 W / 3,000 WCheck price
BLUETTI AC180950 WhYes21.1 h45 W / 2,700 WCheck price
Jackery Explorer 1000 Plus1,024 WhYes22.8 h45 W / 4,000 WCheck price
Anker SOLIX C2000 Gen 21,600 WhYes25.4 h45 W / 4,000 WCheck price
Jackery Explorer 2000 Plus1,678 WhYes37.3 h45 W / 6,000 WCheck price
BLUETTI AC200L1,680 WhYes37.3 h45 W / 3,600 WCheck price
EcoFlow DELTA 2 Max1,800 WhYes30.7 h45 W / 4,800 WCheck price
Anker SOLIX S20001,893 WhYes39.7 h45 W / 3,000 WCheck price
Anker SOLIX F38002,905 WhYes2.7 days45 W / 9,000 WCheck price

Runtime = usable capacity ÷ average draw. "(est.)" means no independent capacity test exists, so we assume 80% of rated capacity reaches the AC outlets. See the methodology. "Check price" links may be affiliate links.

What size do you need?

What size power station do I need for a CPAP (no humidifier)?

Look for at least 45 W of continuous AC output and 45 W of surge. For capacity, a CPAP (no humidifier) averages about 45 W, so 8 hours needs roughly 450 Wh of rated capacity and 24 hours roughly 1,350 Wh, assuming 80% of rated capacity reaches the outlets.

How long will a 1,000 Wh power station run a CPAP (no humidifier)?

About 17.8 h, if its inverter can handle the 45 W startup surge: roughly 800 Wh reaches the outlets, divided by an average draw of 45 W.

Which power station can run a CPAP (no humidifier) for a full day?

Of the 15 models we track, the smallest that runs a CPAP (no humidifier) for 24 hours on one charge is the Anker SOLIX C2000 Gen 2. Larger models run it longer; see the table above.

What a CPAP (no humidifier) draws

Running watts45 W[source]Midpoint of Champion's 30-60 W 'CPAP machine (without heat)' range.
Startup (surge) watts45 W[source]Champion lists no extra starting watts for this load; surge = running.
Average draw used above45 W
Voltage120 V

Check your machine's power supply rating; models vary.