Most standard CPAP machines are intended to be plugged into an electrical outlet. But sometimes, CPAP users need a CPAP battery when electricity is unavailable, such as while camping or during a power outage. CPAP batteries can also be useful while traveling, particularly on a plane or when traveling in a country that uses different electrical outlets.
There are many factors to keep in mind when shopping for a CPAP battery, such as budget, charging time, and Federal Aviation Administration (FAA) compliance for those who plan to use their machine on airplanes. Below, we’ll cover our top picks for CPAP batteries and what to consider when shopping for one.
Our Top Picks
Best Overall
Medistrom Pilot-24 Lite Battery and Backup Power Supply
Ideal For
- Customers looking for a battery that can be used for travel or as a power backup
- People interested in a lightweight battery
- Those wanting a battery with a quick charge time
Who Should Keep Looking
- CPAP users who want more than two nights of run time
- People who use multiple energy-intensive CPAP accessories
- Shoppers who use a battery while camping
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Price
$339
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Dimensions
3.5″ x 6.7″ x .78″
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Noise Rating
95 Wh
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Weight
1.3 lbs.
The Medistrom Pilot-24 Lite Battery and Backup Power Supply, which is compatible with six popular CPAP machines, offers a range of popular features at a mid-range price-point.
At 1.1 pounds, the Pilot-24 Lite Battery is one of the lightest CPAP batteries available. It is 3.5 by 6.7 inches and .78 inches thick. Travelers may also appreciate that this battery is FAA-compliant, allowing it to be used with an FAA-compliant CPAP machine while flying.
Users can quickly determine the battery’s charge using the four charge indicator lights. The battery only takes two to three hours to fully charge using a standard outlet in the U.S. The average run time is 8 to 16 hours, though high air pressure levels combined with accessories like heated tubing or a heated humidifier may lead to a shorter run time.
The Pilot-24 Lite Battery has a lifespan of 500 complete charge and discharge cycles. The battery’s aluminum casing provides good protection, though people who camp regularly may prefer a more durable model.
The Medistrom Pilot-24 Lite Battery and Backup Power Supply has a one-year warranty against manufacturing defects.
Use this SleepApnea.org link for the most current discount on Medistrom products
Shop NowBest for Backup Power
Portable Outlet CPAP Battery
Ideal For
- People who frequently have overnight power outages
- Frequent travelers who need a TSA-compliant battery
- Campers and RV travelers who need off-grid CPAP power
Who Should Keep Looking
- Works with nearly all CPAP and BiPAP machines
- Seamlessly switches to battery power during an outage
- Provides 8 to 10 hours of power for most CPAPs and 7 to 9 hours for BiPAPs
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Price
$349.99
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Dimensions
5.375” x 9” x 1.5”
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Noise Rating
159 Wh
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Weight
3 lbs.
The Portable Outlet CPAP Battery functions as both a portable power source and an uninterruptible power supply (UPS). Instead of requiring proprietary cables or machine-specific adapters, it features a standard 110V AC outlet, allowing you to plug in your CPAP or BiPAP machine using its existing power cord. If the power goes out overnight, the battery automatically switches on, helping ensure your therapy continues without interruption.
With a 159Wh lithium-ion battery, the Portable Outlet provides an average of 8 to 10 hours of runtime for most CPAP machines and 7 to 9 hours for many BiPAP devices, depending on your pressure settings and whether heated humidification or heated tubing is used. The lightweight, TSA-compliant design also makes it a practical choice for travel, camping, RV trips, or anyone who wants reliable backup power while away from home.
It also includes two USB ports for charging small electronic devices and recharges in less than four hours, making it easy to keep ready for emergencies or your next trip.
Use this SleepApnea.org link for the most current discount on Portable Outlet products
Shop NowBest for DreamStation Users
Philips Respironics Travel Battery Kit
Ideal For
- DreamStation and DreamStation 2 users
- People who want automatic backup power
- Frequent travelers looking for an FAA-approved battery
Who Should Keep Looking
- Anyone using a CPAP or BiPAP machine other than a DreamStation
- Users who need more than one night of runtime without recharging
- People looking for a lower-cost universal battery
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Price
$449
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Dimensions
1.25″ by 5.25″ by 9″
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Noise Rating
90 Wh
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Weight
2.25 lbs.
The Philips Respironics Travel Battery Kit is designed specifically for DreamStation and DreamStation 2 CPAP devices. Because it's built to work directly with compatible machines, setup is simple and requires fewer cables and accessories than many universal CPAP batteries. The battery is also FAA-approved for air travel, making it a convenient option for vacations, business trips, and camping adventures.
One of the battery's standout features is its uninterruptible power supply (UPS) capability. When connected between your CPAP and a wall outlet, it automatically switches to battery power if electricity is lost, helping prevent interruptions to overnight therapy. This can provide extra peace of mind for people who live in areas where power outages are common. On a full charge, the battery provides up to 14 hours of runtime, though actual battery life varies based on pressure settings and other therapy factors.
LED charge indicators make it easy to check the remaining battery level, and because it uses the same power supply as compatible DreamStation devices, travelers don't need to pack an additional charger. While it isn't compatible with other CPAP brands, it's an excellent option for Philips Respironics users who want a dependable battery for both travel and emergency home backup.
Use this SleepApnea.org link for the most current discount on Philips Respironics products
Shop NowBest for Transcend Micro Users
Transcend PowerAway Micro Battery
Ideal For
- Transcend Micro users who want a travel battery
- Frequent travelers, campers, and backpackers
- People who want a compact backup power source
Who Should Keep Looking
- Anyone using a full-size CPAP or BiPAP machine
- Users who rely on heated humidification or heated tubing
- People who need several nights of power without recharging
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Price
$349.95
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Dimensions
4.8″ x 5.2″ x 1.3″
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Weight
16.7 oz.
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Noise Rating
71 Wh
The Transcend PowerAway Micro Battery is purpose-built for the Transcend Micro travel CPAP. Weighing just over 1 pound, it connects directly to the CPAP without requiring additional adapters or power cables.
Despite its small size, the battery delivers up to 17.5 hours of runtime for many users on a single charge, with some users reporting enough power for two nights of therapy depending on pressure settings and nightly usage. It also recharges in less than four hours using the same power supply that comes with the Transcend Micro.
It also supports charging with the optional Transcend Solar Charger, making it an appealing option for camping, RV travel, and other situations where wall power may not be available.
Use this SleepApnea.org link for the most current discount on Transcend products
Shop NowCompare the Best CPAP Batteries
| Medistrom Pilot-24 Lite Battery and Backup Power Supply | Portable Outlet CPAP Battery | Philips Respironics Travel Battery Kit | Transcend PowerAway Micro Battery | |
|---|---|---|---|---|
| Price | $339 | $349.99 | $449 | $349.95 |
| Dimensions | 3.5″ x 6.7″ x .78″ | 5.375” x 9” x 1.5” | 1.25″ by 5.25″ by 9″ | 4.8″ x 5.2″ x 1.3″ |
| Wattage | 95 Wh | 159 Wh | 90 Wh | 71 Wh |
| Weight | 1.3 lbs. | 3 lbs. | 2.25 lbs. | 16.7 oz. |
How We Selected These CPAP Batteries
The product team at SleepApnea.org has years of experience researching CPAP equipment and sleep apnea treatments. We stay current on the latest portable power solutions to provide readers with accurate, up-to-date recommendations.
When evaluating CPAP batteries, we consider factors such as battery capacity, compatibility with popular CPAP machines, portability, weight, charging options, ease of use, overall performance, brand reputation, and customer feedback. We also prioritize batteries that deliver reliable power for travel, camping, power outages, and other situations where a standard electrical outlet isn't available. Learn more in our Editorial Policy.
What to Consider When Choosing a CPAP Battery
The right CPAP battery is different for every sleeper and depends on a number of factors.
While compatibility with your CPAP machine is the most crucial element, it’s also important to consider your budget, whether a battery will last for your entire sleep time on one charge, and other features like FAA compliance for use on airplanes.
Keeping your needs and preferences in mind when shopping is the best way to find a CPAP battery that works for you.
| Price | Most CPAP batteries cost between $250 and $600, making them one of the more expensive CPAP accessories. If you are shopping on a budget, it’s important to double-check whether lower-priced models will power your CPAP machine for the length of your average sleep time. |
| Lifespan | While CPAP batteries are rechargeable, they do eventually wear out and stop holding a charge. Batteries with a higher price-point usually have a longer lifespan than less expensive options, and some batteries have a guarantee for the number of times they can be fully charged. |
| Run Time | In general, a higher battery capacity translates to a longer run time. Run time can also be affected by environmental factors — such as humidity and temperature — as well as the amount of power required to run your CPAP machine. Higher air pressure settings, humidifiers, and extra features can all require more power and shorten the expected run time. |
| Recharge Time | Many people use a CPAP battery due to limited outlet access, so it’s worth considering how quickly it takes a battery to fully recharge when plugged into a standard outlet. A battery that is not fully recharged may not be able to power your CPAP machine for the whole time you are asleep. |
| Durability | In addition to how well the design protects a battery from wear and tear, durability also involves a battery’s expected lifespan. People who plan to travel or camp with their CPAP battery should look for a durable model that can withstand both regular use and the rigors of travel. |
| Warranty | CPAP battery warranties vary by the manufacturer, but most CPAP batteries come with a one-year warranty that covers manufacturing defects. This warranty does not usually cover wear and tear or other damage caused by the owner. |
Battery Compatibility With Your CPAP Machine
The most important thing to consider when choosing a CPAP battery is finding one that is compatible with your machine, as not all batteries are compatible with all CPAP machines. Information on compatibility is typically available on the battery manufacturer’s website as well as online retailer product pages.
Inverters and Camping Considerations
- Inverter: Purchasing an inverter is an additional expense, but it easily allows you to keep your battery charged during road or camping trips. Most CPAP batteries are meant to be charged via a standard American outlet, which uses alternating current (AC) power. Since vehicles use direct current (DC) power, charging your CPAP battery from your vehicle requires an inverter to convert the DC power to AC power.
- Outdoor temperatures: Both temperature and humidity can affect batteries, meaning that some weather conditions may cause your battery to hold less power or even stop working entirely. Customers can usually find information on a battery’s ideal temperature range on the manufacturer’s product page or by asking the manufacturer directly.
- Altitude: Batteries can drain much faster at higher altitudes due to lower temperatures and a thinner atmosphere. This does not apply to airplanes, as they are heated and pressurized. If you plan to use your CPAP battery at high altitudes, consider choosing one with a high charge capacity or bringing more than one battery.
- Weight: People who have weight limitations for their supplies should consider the weight of their CPAP battery. The majority of CPAP batteries weigh between 1.3 and 2.3 pounds, though some specialized models may weigh slightly more or less. This weight can quickly add up, particularly if you plan to bring more than one battery.
- Accessories: CPAP accessories such as humidifiers and heated air tubing can make CPAP usage more comfortable, but they also draw additional power from your CPAP battery. Bulky accessories can add more weight to your luggage and take up room. Due to these challenges, it’s worth considering which of your CPAP accessories are worth bringing while you’re away from an electrical outlet.
- Type of trip and length: An off-grid camping trip may require more than one CPAP battery, as well as an inverter for charging in your vehicle. On the other hand, RV camping at a campground that has access to electricity may only require a CPAP battery as a backup in case of a power outage. When packing for your trip, it’s important to consider the details of your trip and what you need to sleep comfortably.
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How to Buy a CPAP Battery
Buying a CPAP battery is usually more straightforward than purchasing a CPAP machine. Most batteries don’t require a prescription and are widely available online and through CPAP suppliers, though insurance coverage is less common since they’re often considered optional. Knowing where to shop and what to look for can help you find a reliable option that fits your needs.
Do You Need a Prescription for CPAP Batteries?
While a prescription is required to purchase a CPAP machine and accessories like CPAP masks, customers can purchase CPAP batteries without a prescription.
This means that CPAP batteries can be purchased through non-specialized retailers, though specialized CPAP retailers are likely to have a larger selection and more in-depth information about compatibility.
Does Insurance or Medicare Cover Your CPAP Battery Costs?
CPAP batteries are not considered necessary medical equipment and are therefore not eligible for Medicare or insurance coverage. However, it may still be worthwhile to ask your provider whether you qualify for an exception.
Where Can You Buy a CPAP Battery?
As with other CPAP accessories, CPAP batteries can be purchased through brick-and-mortar stores or online. Since CPAP batteries do not require a prescription, they may also be available through non-specialized online retailers such as Amazon.
| Retailer | Benefits | Drawbacks |
|---|---|---|
| Brick-and-Mortar CPAP Retailer | -Ability to receive personalized advice from sales staff -Convenient if there is one in your area | -Usually have higher prices than other retailers -May not be conveniently located |
| Online CPAP Retailer | -Wide selection of CPAP batteries to choose from -Information is usually readily available | -Delivery may take longer, depending on your location -No personalized advice |
| Online General Retailer | -May offer good deals on products -Some offer quick delivery | -Selection varies and may not include trusted brands -Counterfeit products may be a concern |
Need More Options? Shop CPAP Batteries at SleepDoctor.com
Shop NowFrequently Asked Questions
Like CPAP machines, not all CPAP batteries can be used when flying. The FAA provides guidelines that CPAP batteries must adhere to in order to be considered safe for air travel. Even if you do not plan to use your battery while flying, it must still be packed in your carry-on baggage rather than checked luggage.
If you have an FAA-compliant CPAP machine and plan to use it while flying, look for a CPAP battery that is also FAA-compliant. This information will be listed on manufacturer websites and online retailer product pages.
Like other vehicles, RVs have a battery that uses DC power. While this is not a problem when connected to the power grid, you may need an inverter to charge your CPAP battery when camping off-grid or during power outages.
Some RVs — particularly those with residential appliances — come with one or more inverters pre-installed. If this is the case, the information will be listed on the manufacturer’s website. If your RV does not have an onboard inverter, it may be worth purchasing one to make full use of your RV’s battery when you do not have access to electricity.
Your vehicle can be an easy way to keep your CPAP battery charged while camping or on a road trip, but doing so requires an inverter. The inverter changes the DC power of the car battery to AC power, which makes it safe to charge your CPAP battery. Some inverters only have USB or outlet plug-ins, so shoppers should make sure they are able to charge their battery in their car before purchasing.
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Written by
Tochukwu Ikpeze, MD, Contributing WriterTochukwu grew up in New York and has a passion for creative and scientific writing. Tochukwu holds an undergraduate degree in Biology and Psychology, a Master’s degree in Biomedical Science, and a Medical Degree as well. In his free time, Tochukwu enjoys reading, learning, exploring various topics pertaining to the human condition and conveying that information to the public through writing.
Reviewed by
Sherrie Neustein, MD, FAAP, Medical ReviewerDr. Sherrie Neustein is a board-certified pediatrician and Fellow of the American Academy of Pediatrics with more than 15 years of clinical experience caring for children and families. Her work focuses on promoting healthy development and overall wellness, including the important role sleep plays in children’s physical, cognitive, and emotional health.
