Last updated August 21, 2026. Not a lab test. Hours below are arithmetic: published watt-hours ÷ a cited device watt figure. We did not run a CPAP overnight. This is not medical advice.
Size the battery from two numbers: the machine’s watts, and the battery’s watt-hours.
ResMed’s AirSense 11 user guide lists a 65 W power supply, typical consumption 56.1 W, and peak 73.2 W. Use your own machine’s manual if you do not have an AirSense 11.
Hours ≈ battery Wh ÷ device watts.
An 8-hour night at ResMed’s typical 56.1 W needs 449 Wh of usable energy before inverter losses. Humidifier and heated hose sit inside that typical/peak range. They are not extra mystery watts. A DC 24 V PAP battery skips the inverter. An AC power station does not, so real AC hours will be shorter than the raw divide.
Current shortlist (makers’ Wh only)
Medistrom Pilot-24 Lite — 95 Wh, DC 24 V
Medistrom’s product page lists 95 Wh, DC 24 V at 3.75 A. It is a dedicated 24 V PAP battery, not a wall-outlet station. Medistrom says 1–2 nights with humidifier and heated tubing disabled. That is their claim, not a test we ran. At ResMed’s typical 56.1 W the raw divide is 1.7 hours.
Jackery Explorer 300 Plus — 288 Wh
Jackery’s US page lists 288 Wh and 300 W AC (model JE-300B). At 56.1 W the raw divide is 5.1 hours. That is short of an 8-hour humidifier night on the AC path.
BLUETTI AC70 — 768 Wh
Amazon listing is a station + 100 W panel kit.
BLUETTI’s US page lists 768 Wh and 1,000 W AC. At 56.1 W the raw divide is 13.7 hours. That clears 449 Wh on paper. The official store showed the unit out of stock when we checked August 21, 2026.
| Product | Path | Maker Wh | Hours at 56.1 W (arithmetic) | Source |
|---|---|---|---|---|
| Medistrom Pilot-24 Lite | DC 24 V | 95 | 1.7 | Medistrom |
| Jackery Explorer 300 Plus | AC | 288 | 5.1 | Jackery |
| BLUETTI AC70 | AC | 768 | 13.7 | BLUETTI |
Confirm cable kits and machine voltage with the battery maker before you buy. See also our guides hub and portable power stations.
At ResMed AirSense 11 typical 56.1 W, 8 × 56.1 = 449 Wh before inverter losses. Use your machine’s own manual.
Robert DeWitt writes about off-grid power gear for Off Grid Power Boom. Based in Arizona, he uses portable power stations, solar panels, and battery systems regularly in extreme heat—focusing on practical runtime, charging speed, reliability, and real-world usability for camping, RV trips, and home backup.
Editorial focus: portable power stations & solar generators, solar panel setups, batteries/inverters, and off-grid preparedness.