Why compatibility matters
Plugging the wrong voltage into your CPAP can damage the machine or simply not work. Different CPAP manufacturers use different connectors, voltages, and power delivery methods. This guide maps out exactly what works with what.
ResMed machines
ResMed AirSense 11
The AirSense 11 is a game-changer for battery compatibility because it supports USB-C Power Delivery (65W+). This means almost any modern USB-C PD battery bank can power it — no proprietary cables needed.
- Input: 24V DC or USB-C PD (65W minimum)
- DC connector: Barrel connector or USB-C
- Compatible batteries: Any 65W+ USB-C PD power bank, Medistrom Pilot-24 Lite, most power stations via AC
ResMed AirSense 10
The AirSense 10 uses a proprietary 24V DC connector. You need a battery that either outputs 24V DC with the correct cable, or an AC power station with the stock wall charger.
- Input: 24V DC
- DC connector: 3-pin proprietary
- Compatible batteries: Medistrom Pilot-24 Lite, Freedom V², ResMed RPS II
- Cable needed: ResMed DC/DC converter (sold separately) or battery-specific cable
ResMed AirMini
The travel-focused AirMini also runs on 24V but uses a smaller connector. Purpose-built CPAP batteries like the Pilot-24 Lite include the compatible cable.
- Input: 24V DC
- DC connector: Micro USB-shaped proprietary
- Compatible batteries: Medistrom Pilot-24 Lite (with AirMini cable), AC power stations
Philips machines
Philips DreamStation 2
Runs on 12V DC, which opens up more battery options since 12V is the most common portable battery voltage.
- Input: 12V DC
- DC connector: Barrel connector (5.5mm x 2.5mm)
- Compatible batteries: Most 12V batteries with correct barrel cable, Jackery/EcoFlow/Bluetti via AC
- Cable needed: 12V DC cable with 5.5 × 2.5mm barrel connector
Philips DreamStation (original)
The original DreamStation also uses 12V DC power with a similar barrel connector.
- Input: 12V DC
- DC connector: Barrel connector
- Compatible batteries: Same as DreamStation 2
Other brands
Fisher & Paykel SleepStyle
- Input: 24V DC
- DC connector: Barrel connector
- Compatible batteries: 24V DC batteries with correct cable, AC power stations
3B Medical Luna II
- Input: 12V DC
- DC connector: Barrel connector
- Compatible batteries: 12V DC batteries, AC power stations
DeVilbiss IntelliPAP
- Input: 12V DC
- DC connector: Barrel connector
- Compatible batteries: 12V DC batteries, cigarette lighter adapter available
The universal fallback: AC power
If your CPAP model isn't listed or you want a no-brainer solution, any portable power station with a pure sine wave AC outlet will work. Just plug in your stock CPAP wall charger.
Downsides: 10–15% energy loss from DC→AC→DC conversion, and the power station's fan may add noise. But it works with every CPAP on the market.
Compatibility quick-reference table
| CPAP Model | Voltage | DC Connector | Best DC Battery | AC Works? |
|---|---|---|---|---|
| ResMed AirSense 11 | 24V | USB-C PD | Any 65W PD bank | ✅ |
| ResMed AirSense 10 | 24V | 3-pin proprietary | Pilot-24 Lite | ✅ |
| ResMed AirMini | 24V | Micro USB-shaped | Pilot-24 Lite | ✅ |
| Philips DreamStation 2 | 12V | Barrel 5.5×2.5 | Any 12V + cable | ✅ |
| Philips DreamStation | 12V | Barrel | Any 12V + cable | ✅ |
| F&P SleepStyle | 24V | Barrel | 24V + cable | ✅ |
| 3B Luna II | 12V | Barrel | Any 12V + cable | ✅ |
What about BiPAP machines?
BiPAP machines typically draw more power than CPAPs (30–90 W), but the same compatibility rules apply. Match the voltage and connector, and size the battery for the higher wattage. Most BiPAP users should look at 400+ Wh power stations for a full night.
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