EcoFlow RIVER 3 Plus
- 286 Wh
- 600 W out
- 10.4 lb
Small enough to live on a nightstand. Keeps a router, phones, lights and a CPAP going through an overnight outage.
Buying guide
The best power station for a CPAP
For one or two nights, a compact 300 Wh unit is enough if you skip the humidifier. With the humidifier, or for longer outages, step up to 1 kWh.
EcoFlow DELTA 3 Plus
- 1,024 Wh
- 1,800 W out
- 27.6 lb
The most flexible 1 kWh unit: strong 1,800 W output and the option to add batteries later.
Nights of CPAP per charge
| Model | Capacity | CPAP, ~40 W | With humidifier, ~90 W | |
|---|---|---|---|---|
| EcoFlow RIVER 3 Plus | 286 Wh | 0.8 nights | 0.3 nights | Check price |
| EcoFlow DELTA 3 Plus | 1,024 Wh | 2.7 nights | 1.2 nights | Check price |
| Jackery Explorer 1000 v2 | 1,070 Wh | 2.8 nights | 1.3 nights | Check price |
| Anker SOLIX C1000 Gen 2 | 1,024 Wh | 2.7 nights | 1.2 nights | Check price |
| Jackery Explorer 2000 v2 | 2,042 Wh | 5.4 nights | 2.4 nights | Check price |
| BLUETTI Elite 200 V2 | 2,074 Wh | 5.5 nights | 2.4 nights | Check price |
| EcoFlow DELTA Pro 3 | 4,096 Wh | 10.9 nights | 4.8 nights | Check price |
Based on an 8-hour night at 85% usable capacity. Check your machine's real draw: it's printed on the power brick, or ask the manufacturer. Tell your electric utility you rely on medical equipment; many keep a priority list.
Questions
How long will a power station run a CPAP?
A CPAP drawing about 40 W without the humidifier uses roughly 320 Wh over an 8-hour night. A 1 kWh station covers about 2.7 nights; a 286 Wh unit covers most of one night.
Should I turn off the CPAP humidifier during an outage?
The heated humidifier is usually the biggest power draw. Turning it off can roughly double your runtime, but ask your doctor whether that's OK for you.
Is a DC adapter better than the AC outlet?
Many CPAP makers sell a DC power cord or converter. Running from the 12 V port skips the station's inverter, which wastes some energy, so it usually extends runtime. Check with your CPAP's maker.