Quick answer: You can camp with a CPAP if you plan for dependable power, compatible connections and a dry setup. Before leaving, test your actual machine and settings on the power source for at least a full night. Battery runtime varies widely, especially when heated humidification or tubing is used.
Choose a power setup
| Option | Best for | Check before leaving |
|---|---|---|
| Powered campsite | Car camping with access to an electrical hookup. | Confirm the outlet type, location, campground rules and a backup plan for outages. |
| Portable power station | Off-grid trips where weight and charging space are manageable. | Usable capacity, output rating, compatible adapter, weather protection and recharge time. |
| CPAP-specific battery | Travelers who want a compact system designed for compatible devices. | Exact machine compatibility, runtime at your settings, cable and recharge options. |
| Vehicle battery with approved converter | Some car-based trips where the equipment manufacturer supports the connection. | Correct voltage and converter, vehicle battery protection and whether you can still start the vehicle. |
Solar panels can recharge a suitable battery during the day, but output depends on sunlight, weather, orientation and equipment. Do not count on a full recharge without testing your setup, and have a backup if conditions change.
How big a battery do you need?
Battery capacity is commonly shown in watt-hours (Wh). The most useful starting point is the energy your own CPAP consumes over a full night with your pressure, mask, humidifier and tubing settings. If your power station displays watt-hours used, record several representative nights at home.
Illustrative calculation: If a machine averaged 12 watts for eight hours, it would use about 96 Wh at the device. If the complete battery-to-device setup delivered an estimated 80% of its rated capacity, a battery rated at roughly 120 Wh would be needed for that single night (96 ÷ 0.80). This is an example, not a runtime promise: actual losses, settings, temperature and battery condition vary. Add a reserve and account for every night and other devices.
Do not use a power brick’s maximum wattage as if it were the machine’s measured average. For example, a 65-watt adapter rating does not mean the CPAP uses 65 watts continuously. Ask your equipment supplier about estimated consumption and test the entire setup before relying on it.
Check the adapter and connection
A CPAP may require a specific voltage, connector and manufacturer-approved DC converter. A generic 12-volt cable is not automatically compatible. Some devices can run from a power station’s AC outlet through their usual power supply; others can use an approved DC converter. Conversion losses differ, so measure the configuration you plan to take. Verify the power station’s continuous output is sufficient for your equipment.
For example, ResMed says the AirMini has no built-in battery and needs a power source. Its compatible DC converter is sold separately. A travel machine is not automatically battery-powered just because it is small.
Humidification and water
Heated humidification and heated tubing can greatly increase battery demand. If you are considering changing those comfort settings for camping, talk with your sleep clinician or equipment provider first and test the change at home. Do not change prescribed therapy pressure on your own.
Follow the water instructions for your exact device and humidifier tub. ResMed recommends distilled water for its water tub; other models or regions may specify different requirements. Bring the required water in a clean, closed container. Do not assume filtered stream or lake water is suitable, and ask the manufacturer or equipment provider what to do if the recommended water is unavailable.
Some travel devices use waterless heat-and-moisture exchange cartridges rather than a water chamber. Compatibility varies by device and mask: check the manufacturer’s current instructions and replacement schedule before buying. Waterless humidification is not available for every mask.
Set up safely at camp
- Keep the machine, battery, connectors and tubing protected from rain, condensation, splashes and dust; maintain the ventilation and temperature clearances specified by their manufacturers.
- Place equipment on a stable surface and route tubing and cords to reduce trip and snag hazards. Avoid placing the device where spilled water can reach electrical components.
- Follow the battery maker’s instructions for charging, storage, ventilation and temperature. Battery types differ, so do not assume every battery is appropriate inside a tent or enclosed vehicle.
- Never run a fuel-burning generator inside a tent, vehicle or enclosed shelter. Generators produce deadly carbon monoxide. Follow CDC generator guidance, campground rules and the generator manual.
- Arrange a dependable backup power or campsite plan with your care team or supplier. If power fails, contact them for advice specific to your condition rather than assuming that skipping treatment is appropriate.
What to pack
- CPAP device, mask, headgear and tubing, with prescribed settings confirmed.
- Compatible power supply, approved DC converter if used, and any required connection cable.
- Charged battery or verified campsite hookup, charger and appropriate backup.
- Filters and spare mask components or seals, where practical.
- Humidifier supplies and water specified for your equipment, or a compatible waterless cartridge.
- Cleaning supplies and a way to dry equipment according to the manufacturer’s instructions.
- A copy of the prescription and contact information for your equipment supplier and care team.
Travel CPAP or home machine?
Your home machine may be the simplest choice for car camping if you have sufficient power and room. A travel device can reduce bulk, but check prescription requirements, mask and tubing compatibility, power connections and humidification before buying. The ResMed AirMini is one compact option; its compatible masks and accessories differ from a standard home setup. This link may earn Yawnder a commission at no extra cost to you.
Flying to your campsite?
Battery rules can limit your power options. The FAA requires spare lithium batteries and power banks in carry-on baggage, subject to capacity limits and airline requirements. Many large camping power stations cannot travel on passenger aircraft. Check the battery’s Wh rating, current FAA rules and your airline’s policy before departure.
Frequently asked questions
How many nights will my CPAP battery last?
It depends on usable battery capacity, the machine, pressure, humidification, temperature and connection losses. Test your setup and keep a reserve.
Can I use a solar panel directly overnight?
A solar panel needs sunlight. For overnight treatment you generally need a compatible charged battery or other dependable power source; plan for cloudy days.
Can I use filtered water from a stream?
Do not assume it meets your humidifier’s instructions. Bring the water type specified for your device and ask the manufacturer about alternatives.
Can I turn off the humidifier to save power?
It may reduce power use, but it can affect comfort. Discuss the change with your care team and try it at home first; leave prescribed treatment settings unchanged unless instructed otherwise.
Sources: ResMed AirMini power information; ResMed humidifier guidance; CDC carbon monoxide guidance; and FAA lithium battery rules. Reviewed October 27, 2026.