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  3. Power Solutions /
  4. DC Cables

DC Cables for CPAP Machines

CPAP DC cables allow you to power your CPAP machine from 12V DC power sources commonly found on personal and recreational vehicles. If you travel frequently, having a way to power your machine from a DC power source gives you more travel flexibility while also providing a backup solution if the power goes out. If you have a CPAP battery or portable generator with a 12V DC outlet, it will be more energy-efficient than using AC power, allowing you to get even more out of your battery life. Shop CPAP DC cables for popular CPAP machines below.

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Product image for DC Converter 65W for AirMini™ Auto CPAP Machine

DC Converter 65W for AirMini™ Auto CPAP Machine

★★★★★
9 Reviews
$89.00
Product image for DC Converter 24V 90W For S9™ Machines

DC Converter 24V 90W For S9™ Machines

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Product image for DC Charger for Pilot-24 Lite or Pilot-12 Lite Battery

DC Charger for Pilot-24 Lite or Pilot-12 Lite Battery

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Product image for Shielded DC Cord for DreamStation CPAP Machines

Shielded DC Cord for DreamStation CPAP Machines

★★★★★
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Product image for Shielded DC Cord for PR System One 60 Series Machines

Shielded DC Cord for PR System One 60 Series Machines

★★★★★
121 Reviews
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Product image for Respironics, 12volt DC Battery Adapter Cable with Battery Clips

Respironics, 12volt DC Battery Adapter Cable with Battery Clips

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Product image for RP-DC Power Adapter Kit for Respironics Bipap Machines

RP-DC Power Adapter Kit for Respironics Bipap Machines

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Product image for IntelliPAP 12 volt DC Power Cord

IntelliPAP 12 volt DC Power Cord

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Product image for S9™ Series DC Cable for ResMed Power Station (RPS) II

S9™ Series DC Cable for ResMed Power Station (RPS) II

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Product image for DC to DC Cable for C-100 & Freedom Travel Battery Packs for CPAP Machines

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Learn About DC Cables for CPAP Machines

When you don't have access to an AC socket, having a way to keep your CPAP machine powered up is important. Thankfully, there are many alternative power sources you can use while camping, during a power outage, or on any long road trip or flight. With a CPAP DC converter, you can power your machine with the 12V or 24V DC outlet found in most vehicles. CPAP DC converters are great for long-haul truck drivers, marine and overseas travelers, and anyone traveling in a recreational vehicle. Keeping a DC converter and 12V or 24V power source on hand in case of emergencies will ensure you don’t have to spend a night without your CPAP machine.

What Is a DC Converter for CPAP?

A CPAP DC converter can connect your CPAP machine directly to a 12V or 24V DC power source. While there are battery packs like the EXP48 Pro, which feature a 12V outlet, you’ll also commonly find 12V outlets in cars, trucks, boats, and RVs. A DC converter keeps your power options versatile when traveling or going off the grid. 

CPAP DC Converter and 12 Volt Adapters for All ResMed Machines

The following DC converters and 12 volt adapters are designed to work specifically with the ResMed AirSense and AirMini devices:

  • DC Adapter for the AirSense 10

For the AirSense 10 itself, we recommend the ResMed AirSense 10 DC Converter that connects to 12 V or 24 V power sources.

  • DC Converter for S9 Series Machines

For ResMed S9 Series machines, we recommend the ResMed S9 DC Converter.

  • ResMed AirMini DC Converter

If you’re using an AirMini, the DC Converter for AirMini is the best option for powering your AirMini device with a DC outlet as it’s designed specifically for the AirMini.

CPAP Machine Voltage

When you plug your CPAP machine into a wall outlet in the US, the outlet delivers a 110-volt current. When traveling overseas, however, you’ll experience different outlet shapes, and in some countries, wall outlets deliver a 220-volt current or a 240-volt current.

A CPAP DC power cord connects the machine directly to a battery pack that delivers a 12-volt current. This is sufficient for running most CPAP machines at the same capacity that they would run if plugged into an AC outlet. There are some unique circumstances that may require more than just a DC power converter, however.

Some machines cannot run on DC power and will require an inverter to convert DC power to AC power. There are also CPAP machines that require a specific type of inverter known as a sine wave inverter. While an inverter will supply a crude version of AC power, a sine wave inverter produces a much smoother and more efficient waveform that’s much more comparable to the alternating current supplied by a wall outlet. 

Many CPAP machines need 30 to 90 watts of power. The type of machine you have (CPAP, BiPAP, or APAP) will largely determine its power needs. If your CPAP machine has many advanced features like a built-in humidifier, leak detection, or auto ramp, you will need more power. Attached accessories can also increase your power needs but you do have the option to turn these settings off in order to save the power of your machine. 

Although you can certainly calculate the exact power output necessary for your machine, there are often already products available from your machine’s manufacturer that can take the guesswork out of finding a power source. 

Charging Your CPAP Battery With a DC Power Cord

While the longest-lasting CPAP batteries will power your machine for up to two nights while off-the-grid, the reality of the situation is that most will need to be recharged after each night of use to guarantee another full night’s charge. Charging your CPAP battery can be tricky when camping or traveling, but a DC power cord is an easy way to charge your equipment using the cigarette-style DC outlet found in most vehicles. 

Your CPAP battery discharges DC power, so recharging it with DC power is perfectly safe and reliable!


Frequently Asked Questions

  • What CPAP batteries require a compatible DC cord?

    • The EXP48 Pro and EXP96 Pro battery bank require your machine's applicable DC Cord.
    • Medistrom Pilot 24 requires a DC adapter for DreamStation Go and Luna machines.    
    • Portable Outlet UPS Battery and Portable Outlet 2 Battery works right out of the box for any machine.
    • Freedom V2 CPAP Battery includes compatible machine kits for your machine

Customer Highlights


DC Converter 24V 90W For AirStart™ 10, AirSense™ 10, and AirCurve™ 10 Machines
DC Converter 24V 90W For AirStart™ 10, AirSense™ 10, and AirCurve™ 10 Machines

Happy Customer

The product was exactly what I needed and performed to my satisfaction. The best part of the experience was dealing with your sales representative, who were extremely knowledgeable and professional and were able to determine what item I needed. Pleasant experience and happy customer.

Verified Purchase 2020-09-30

12 Volt DC Power Cord (Connects CPAP to Cigarette Lighter Socket)
12 Volt DC Power Cord (Connects CPAP to Cigarette Lighter Socket)

Heavy Duty Cord

I was impressed with the quality of this cord when I unpacked it, and am very happy it came with a variety of fuses, including spares. Should work just fine next "dry" trip with the camp trailer. Much more efficient than running the power inverter all night.

Verified Purchase 2017-06-24

IntelliPAP 12 volt DC Power Cord
IntelliPAP 12 volt DC Power Cord

Good For Dry Camping

I got this for my wife so she could have her CPAP when we are camping in our RV in places with no electricity hookups. I installed an outlet in the bedroom and we used it this week. It did just what we wanted, the camper battery was able to carry the load with no problem and with water in the humidifier even with no heat it worked.

Verified Purchase 2014-10-29

Shielded DC Cord for PR System One 60 Series Machines
Shielded DC Cord for PR System One 60 Series Machines

Going Off-Grid With APAP

This cord works perfectly for the use I bought it. It allows me to connect my wife's Philips Respironics REMstar Auto A-Flex, series 60, REF 560p, to a 12vdc AGM Deep Cycle Battery. Directly connecting the APAP to the battery through a cigarette lighter adapter, using this cord, consumes only 3.5 to 4.0 AH (approximately 10% of my 35 AH battery) per night. This is with a >90% pressure reading of 11.0 cmH2O. My goal was to provide electricity to the APAP for 3 to 7 nights of camping without recharging the power source. Mission accomplished.

Verified Purchase 2017-08-30

Shielded DC Cord for DreamStation CPAP Machines
Shielded DC Cord for DreamStation CPAP Machines

My Power Back Up Plan

There is nothing more annoying about than a mid-night power outage. I use this adapter to plug into the 12 volt output of a 33 Ampere-Hour battery pack, which I keep plugged in. Then, if the power goes out, I’m not gasping for air or trying to start up a generator without waking up.

Verified Purchase 2019-08-09

Respironics, 12volt DC Battery Adapter Cable with Battery Clips
Respironics, 12volt DC Battery Adapter Cable with Battery Clips

Great Product

I used it almost immediately and it performed as I had hoped. An added plus, which I did not expect, is the embedded 15 amp fuse.

Verified Purchase 2016-01-12

DC Converter 24V 90W For S9™ Machines
DC Converter 24V 90W For S9™ Machines

Most impressive!

The converter is an amazing piece of equipment. I'm able to stop and rest anytime when traveling. I have the peace of mind to know that I don't have to drive tired anymore. I highly recommend the converter to everyone who uses a CPAP.

Verified Purchase 2017-01-13

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