Buyer's guide
Best Power Stations for CPAP
A power station is one of the simplest ways to keep your CPAP running while camping or during an outage. The trick is matching the battery size to your machine and whether you use the humidifier. These are our picks for quiet, dependable overnight power.
Quick picks
How the picks compare
| Model | Capacity | AC output | Weight | Best for |
|---|---|---|---|---|
| EcoFlow River 3 Plus | 286Wh | 600W | ~10.6 lb | Most CPAP users |
| Jackery Explorer 300 Plus | 288Wh | 300W | ~8.3 lb | Lightweight travel |
| Anker SOLIX C300 | 288Wh | 300W | ~7.7 lb | Value |
| Bluetti EB3A | 268Wh | 600W | ~10.1 lb | Occasional backup |
EcoFlow River 3 Plus
Capacity: 286Wh (expandable)AC output: 600WWeight: ~10.6 lb
This is the easy answer for almost everyone. It runs a typical CPAP for a full night with the humidifier off, and you can clip on an extra battery for two or three nights. Quiet enough to sleep next to.
What we like
- Plenty of capacity for one or two nights of CPAP use
- Expandable with an extra battery for longer trips
- Charges back up fast when you do have power
Worth knowing
- The humidifier and heated hose drain it much faster
- Costs more than a tiny single-purpose battery
Jackery Explorer 300 Plus
Capacity: 288WhAC output: 300WWeight: ~8.3 lb
If you fly or hike and want the simplest possible setup, Jackery is hard to beat. The screen is clear, the app is friendly, and it sips power so a no-humidifier CPAP gets through the night with room to spare.
What we like
- Very light and genuinely easy to carry
- Beginner-friendly display and app
- Runs a basic CPAP comfortably overnight
Worth knowing
- No fast battery expansion option
- 300W limit rules out heavy heated humidifiers
Anker SOLIX C300
Capacity: 288WhAC output: 300WWeight: ~7.7 lb
Anker packs a lot into a small, well-built box for the money. It has a handy folding light, charges quickly, and the LiFePO4 cells mean it should last many years of nightly use.
What we like
- Strong capacity for the price
- Long-life LiFePO4 battery cells
- Compact with a built-in light for the tent
Worth knowing
- 300W ceiling limits humidifier use
- Fan can be faintly audible in a silent room
Bluetti EB3A
Capacity: 268WhAC output: 600WWeight: ~10.1 lb
A solid budget pick if you only need CPAP power now and then, like during outages. The higher 600W output gives more headroom, though the slightly smaller battery means you should turn the humidifier off.
What we like
- Higher 600W output than most in this size
- Good price for occasional emergency use
- Fast recharge when grid power returns
Worth knowing
- Smallest battery here, so skip the humidifier
- Fan is noticeable while charging
How to choose a CPAP power station
Start with one number: how much energy your machine uses per night. Without the humidifier, most CPAPs need about 30 to 60Wh. That means a 280 to 300Wh station like these covers a single night several times over, and a larger unit buys you extra nights between charges. Always plan for a little headroom so you are not running the battery to empty.
The second decision is the humidifier. The heater is the single biggest power user, often more than the airflow motor itself. If you camp, turn it off or down, or switch to a heat-and-moisture exchanger. If you must have full humidification, size up to a 500Wh or larger station.
Who should skip these: If you only ever run your CPAP at home and just want backup for outages, a larger 500 to 1000Wh power station or a small home battery makes more sense, since it can cover multiple nights and other devices too.
Browse all portable power stations →
Frequently Asked Questions
How big a power station do I need for my CPAP?
Most CPAPs without the humidifier draw 30 to 60 watts and use roughly 30 to 60Wh per night. A 280 to 300Wh power station like the picks here covers a full night with margin, and a 500Wh+ unit gives you two or three nights.
Why does the humidifier and heated hose drain the battery so fast?
Heating water and air takes a lot of energy, often 3 to 5 times more than the airflow motor alone. For battery use, turn the humidifier off or to its lowest setting, or use a heat-and-moisture exchanger instead.
Will a power station run my CPAP quietly enough to sleep?
Yes. At the low power a CPAP draws, the cooling fan usually stays off or barely spins, so the units here are quiet at night. The fan is mostly noticeable while the station is charging, not while it powers your machine.
Can I recharge it with a solar panel for camping?
All four picks accept solar input, so a 100W folding panel can top them up during the day for the next night. Bring a panel sized to your trip length and how many nights you need between charges.