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Best CPAP Batteries

Daniel Noyed

Written by

Daniel Noyed, Certified Sleep Coach

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We recently updated this page to include the Transcend P10 Battery for 365 miniCPAP Auto as our best pick for Transcend users. The Portable Outlet Rechargeable CPAP Battery remains our top overall pick. is reader-supported. We may earn a commission through products purchased using links on this page. Learn more about our process here

Continuous positive airway pressure (CPAP) machines are the most common treatment for sleep apnea. Virtually all CPAP machines use a power supply that plugs into an electrical outlet. For this reason, most CPAP machines do not require batteries.

However, sometimes sleepers may need or want to power their CPAP machines by battery. For example, some sleepers may require a battery while camping or traveling to places that don’t have readily available American electrical outlets. A battery can also serve as a backup power source in the event of a power outage.

Choosing the right CPAP battery is an important purchase decision. Batteries capable of powering CPAP machines are not cheap, so you want to invest in one that is long-lasting and compatible with your specific CPAP machine.

The Best CPAP Batteries

Product Details

Portable Outlet Rechargeable CPAP Battery

Best Universal Battery

Portable Outlet Rechargeable CPAP Battery

Portable Outlet Rechargeable CPAP Battery
Price: $410
Who it's best for:
  • Most CPAP and BiPAP users regardless of which machine they choose
  • Those who frequently travel for work or pleasure
  • People who reside in sunny locations
  • Compatible with most leading CPAP and BiPAP machines
  • Compact, low-profile design makes the battery travel-friendly
  • May also be used with laptops and other electronic devices
Portable Outlet Rechargeable CPAP Battery

Use this link for the most current discount on Portable Outlet products

The Portable Outlet Rechargeable CPAP Battery is a sleek, high-tech device equipped with several cutting-edge features. Designed for universal compatibility, the battery can be used to power most leading CPAP and BiPAP machines. The average device will run for 10 to 14 hours after a full charge. The battery also has Universal Power Supply (UPS) technology, allowing it to continue charging your PAP machine in the event of a power outage. Owners should note that battery life may be decreased as much as 50% for machines with heated humidification.

The battery weighs 3 pounds and measures 1.5 inches thick. The lightweight, low-profile design is ideal for travel and long commutes. Air travelers can also utilize the battery, as it has earned FAA and TSA approval. Day-to-day practicality is another strength, since you can use the battery to charge laptops and other electronic devices in addition to your PAP machine. Each purchase includes a universal wall cord and handy storage bag for on-the-go use.

No additional adapters or connectors are needed to use the battery. For those who live in sunny locales, Portable Outlets offers an add-on that enables you to charge your devices using solar power. All purchases are backed by a 1-year warranty.

Philips Respironics Travel Battery Kit

Best Battery for Philips Respironics Users

Philips Respironics Travel Battery Kit

Philips Respironics Travel Battery Kit
Price: $390
Who it's best for:
  • People who exclusively use Philips Respironics DreamStation, System One, and Trilogy devices
  • Frequent travelers
  • Those who don’t rely on PAP machines with humidifiers
  • Compatible with any Philips Respironics positive air pressure machine
  • Charged devices perform for up to 14 hours
  • FAA-approved for airline travel
Philips Respironics Travel Battery Kit

Use this link for the most current discount on Philips Respironics products

Like ResMed, Philips Respironics is a leading manufacturer of PAP machines and other products for people with sleep apnea. The company’s Travel Battery Kit is compatible with the DreamStation and System One PAP machines, as well as the Trilogy ventilator. Weighing slightly more than 2 pounds, the battery is ideal for camping, hotel stays, and long commutes. It has also received full FAA approval for air travel.

The battery will power devices for up to 14 hours of total run time, and the charging process takes no longer than 4 hours. Even after 1,000 individual charges, the battery performs at 70% of capacity. Owners should note that you cannot charge your CPAP or BiPAP machine while using a humidifier, in order to prevent overheating. Built-in UPS technology ensures an uninterrupted charge for your PAP machine in the event of a power outage.

You do not need a prescription to purchase the Travel Battery Kit. A 65-watt power supply is included with each purchase, along with a battery case and carrying strap for added convenience. If your order includes two or more kits, you’ll need to complete the purchase via PayPal. All purchases are backed by 6-month warranties.

Transcend P10 Battery for 365 miniCPAP Auto

Best Battery for Transcend Users

Transcend P10 Battery for 365 miniCPAP Auto

Transcend P10 Battery for 365 miniCPAP Auto
Price: $369
Who it's best for:
  • Owners of the Transcend 365 miniCPAP Auto
  • People who plan to travel or camp with their Transcend 365
  • Those seeking a lightweight battery
  • Slim profile designed for portability
  • Compatible with Transcend 365 machine
  • Charge lasts up to 20 hours
Transcend P10 Battery for 365 miniCPAP Auto

Use this link for the most current discount on Transcend products

If you’re the owner of a Transcend 365 miniCPAP machine, the Transcend P10 Battery is designed specifically for you. Just like the Transcend 365, which is meant for use during travel, the P10 Battery has a lightweight design that makes it perfect for portability.

Measuring 8.5 x 4.4 inches with a 1-inch thickness, the battery has a slender profile and stows easily into purses or carry-on luggage. Weighing in at 1.55 pounds, the battery will not feel excessively heavy in your bag. The P10 is designed to power your Transcend 365 when power outlets are not easily accessible or in the event of a power outage. The charge lasts anywhere from 5 to 20 hours, depending on factors such as altitude and respiratory rate, and it takes approximately 7 hours to recharge.

You can charge the battery with the Transcend 365 Universal AC Power Supply, so no external chargers are necessary. If you plan to travel by plane with your Transcend 365, the P10 battery is FAA-compliant. Keep in mind that the battery is designed specifically for the Transcend 365 and is not compatible with other CPAP machines.

Shipping for the battery is free. Unopened and unused batteries may be returned in original packaging within 15 days, minus original shipping costs.

How to Choose a CPAP Battery

Unless you’ve purchased a CPAP battery before, you likely feel uncertain about how to determine which battery to choose. There are a variety of CPAP-compatible batteries available on the market. Not all batteries perform equally well, however.

Knowing what to consider when purchasing a CPAP battery can help ensure you purchase the battery that will work the best for your needs and is compatible with the best CPAP machine for you.

What to Consider When Purchasing a CPAP Battery

When shopping for the best CPAP battery, consider many different factors. Most importantly, the battery you choose must be compatible with your CPAP machine. Secondly, your battery’s run time should exceed the time you spend sleeping, so your machine doesn’t lose power during the night.

Other factors vary in their importance depending on the person. For example, some sleepers are on a budget, so a lower-price battery could be important to them. Others might want to invest in a battery that’s long-lasting, so its durability and warranty could be of importance. Sleepers planning on using their battery while camping or traveling do best with a highly portable battery that charges quickly.

Be sure to consider your own unique situation and preferences when shopping for a CPAP battery. The best CPAP battery is the one that most satisfies your needs.

Machine Compatibility
Finding a battery that’s compatible with your CPAP machine is an absolute must. Not all portable batteries are compatible with all CPAP machines.

Some CPAP machine brands make their own compatible portable batteries. Be sure to research compatibility before purchasing a battery. An incompatible battery might not power your CPAP machine properly. An incompatible battery could also damage your CPAP machine.

Battery Capacity
Battery capacity is a scientific term that refers to a battery’s ability to store power. Battery capacity is usually measured in terms of milliamps per hour (mAH). Generally, batteries with a higher capacity also have a longer run time. External factors, such as temperature, can impact a battery’s capacity. Most sleepers want a battery with a higher capacity to power their CPAP machine.

Run Time
Run time refers to how long a battery can power a device. Run time is important when batteries are being used to power CPAP machines. If your battery’s run time isn’t long enough, your battery could run out of power while you’re using the CPAP machine. Most CPAP batteries provide enough power for 1 to 3 nights of sleep before they require recharging.

Some sleepers want a battery with an exceptionally long run time, so they don’t have to recharge the battery every day. Batteries with extra long run times tend to be more expensive than those with shorter run times. A long run time battery could be necessary for some sleepers camping or traveling, who can’t access a wall or car outlet every day during their travels.

Charge Time
Charge time refers to how long a battery takes to recharge. Charge time can be important, especially to people using a CPAP battery while traveling. When a person isn’t in one single place or near an outlet all day, having a battery that charges quickly is required so it can become fully charged. If a battery isn’t fully recharged during the day, its run time will be diminished, and it might not be capable of powering a CPAP machine all night long.

Portability matters to sleepers wanting a CPAP battery so they can use their CPAP machines while camping or traveling. Size, weight, and design impact the portability of a CPAP battery. Smaller batteries take up less space in a bag, which is a plus, especially when traveling in situations that limit luggage space. Lighter-weight batteries help keep bags light, which is important when camping or in other travel situations that require a person to carry their luggage for longer distances.

The more durable a battery is, the longer lifespan it will likely have. Some battery manufacturers share how long their battery is guaranteed to last in terms of how many times it may be recharged. Durability refers to more than just lifespan, however. The design and shape of a battery also factor into its durability. A durable battery won’t break easily or become damaged through regular use.

People on a budget care about the price tag associated with their CPAP battery. CPAP batteries generally run between $200 and $600. Unfortunately, less expensive batteries tend not to perform as well. Less expensive batteries typically have shorter run times and longer charge times. Of course, this is a generalization and not a rule. Sleepers shouldn’t make assumptions about the quality of a battery or decide which battery to purchase based on price alone.

Most CPAP batteries come with a 1-year manufacturer’s warranty. Generally, these 1-year warranties cover defects in the battery but not damage or problems caused by use. Sleepers seeking a CPAP battery should familiarize themselves with details of the manufacturer’s warranty before making a purchase.

CPAP Machine Battery Compatibility

Purchasing a battery that’s compatible with your CPAP machine is of utmost importance. If you purchase a battery that isn’t compatible, it could damage your machine or simply not work.

We’ll highlight popular CPAP machine models and batteries compatible with each machine type.

CPAP Machine Model Compatible CPAP Battery
DreamStation Portable Outlet CPAP Battery

Philips Respironics Travel Battery Kit

EXP96 Pro Lithium Ion Battery Bank

EXP48 Pro Lithium Ion Battery Bank

BPS Freedom Travel Battery With the DreamStation 12V Power Converter

BPS Freedom V2 Travel CPAP Battery + Machine Cable Kits

DreamStation Go Portable Outlet CPAP Battery

DreamStation Go Overnight Battery

BPS Freedom Travel Battery With the 150W Sine Wave Inverter

Medistrom Pilot-24 Lite With the Adapter

ResMed AirMini Portable Outlet CPAP Battery

Medistrom Pilot-24 Lite

EXP96 Pro Lithium Ion Battery Bank

EXP48 Pro Lithium Ion Battery Bank

BPS Freedom Travel Battery With the 150W Sine Wave Inverter

BPS Freedom V2 Travel CPAP Battery + Machine Cable Kits

ResMed AirSense 10 Portable Outlet CPAP Battery

EXP96 Pro Lithium Ion Battery Bank

EXP48 Pro Lithium Ion Battery Bank

ResMed Power Station II Battery Kit

Medistrom Pilot-24 Lite

BPS Freedom V2 Travel CPAP Battery + Machine Cable Kits

HDM Z2 Z2 PowerShell Extended Battery

EXP96 Pro Lithium Ion Battery Bank

EXP48 Pro Lithium Ion Battery Bank

BPS Freedom Travel Battery With the 150W Sine Wave Inverter


Inverters allow sleepers to recharge their portable CPAP battery using a DC car outlet rather than a standard wall outlet. Since nearly all American electrical systems use AC power, CPAP batteries are recharged by AC power. Vehicle electrical outlets put out DC power, however. An inverter is required to transform DC power into usable AC power.

If you’re always able to charge your CPAP battery using a wall outlet, you don’t need an inverter. An inverter is useful to people who want to recharge their CPAP battery from within a vehicle. People bringing their CPAP machine camping or on road trips often find an inverter crucial, since they don’t have access to wall outlets on a daily basis while traveling.

Frequently Asked Questions About CPAP Batteries

When people shop for CPAP batteries for the first time, they often have questions. We’ll answer the most frequently asked questions, so you can feel confident as you shop for a battery to power your CPAP machine.

How long will a battery power a CPAP machine?

Generally, a fully charged portable battery will power a CPAP machine for anywhere from 8 to 24 hours. How long any specific battery can power a CPAP machine depends on the battery’s capacity and run time.

Many CPAP battery manufacturers share how long their fully charged battery can power a CPAP machine. If you’re considering a battery from a manufacturer that doesn’t share this information, take time to read customer reviews. Often, existing customers who have purchased CPAP batteries comment on the battery’s run time in their reviews.

How much do CPAP batteries cost?

Generally, CPAP batteries cost between $200 and $600. Of course, you might come across some batteries that cost a little less because of a sale, or a little more because they come with extra features. Usually, shoppers purchasing a CPAP battery have to pay the entire cost of the battery out of pocket.

Are CPAP batteries covered by insurance?

No, most of the time, CPAP batteries are not covered by insurance. Unfortunately, most health insurance companies do not consider CPAP batteries medically necessary. Since a CPAP machine already comes with a power supply that plugs into a wall outlet, a portable CPAP battery is often viewed as an optional accessory.

Still, if you have health insurance, it may still be worth calling your insurance company to inquire about CPAP batteries. Although most do not, some insurance companies do cover a portion of the cost of batteries.

Can you use a car battery to power a CPAP machine?

Although it is possible to power a CPAP machine with a car battery, it could be risky. You would need to use alligator clips to connect an inverter directly to the battery. Additionally, car batteries are large and heavy, making them impractical for travel.

You could use a car battery to power a CPAP by plugging the machine into an inverter connected to a car’s outlet, but this setup also isn’t ideal. You would then need to sleep in the car to stay near the outlet. Also, if you turned the car engine off, powering the CPAP machine would eventually drain the car’s battery.

Do you need a prescription for a CPAP battery?

No, you do not need a prescription to purchase a CPAP battery. Generally, CPAP batteries are sold to the general public directly, through websites and from medical device companies. Most pharmacies do not sell CPAP batteries and prescriptions are unrelated to the CPAP battery buying process.

Most health insurance companies do not cover CPAP batteries. That said, some insurance plans do cover or partially cover CPAP batteries. If your insurance company is one of the few that covers CPAP batteries, you would need to provide medical proof that you require a CPAP machine to have your battery purchase covered. You would not need a prescription.

Can you charge a CPAP battery in the car?

Yes, you can charge a CPAP battery in the car using an inverter. Most CPAP batteries do not plug into a car’s outlet directly. Cars contain a DC outlet, while most batteries require AC power to recharge. An inverter takes the DC electricity from the car outlet and turns it into AC power, which can safely recharge the CPAP battery.

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About Our Editorial Team

Daniel Noyed

Certified Sleep Coach

Danny is a Certified Sleep Science Coach with an in-depth knowledge of sleep health. He has tested hundreds of mattresses and sleep products.