KFD 12V-24V Car Charger DC Adapter
4.3Editor score
Compatible with ResMed AirSense 11
Input voltage 12V to 24V
36 months warranty included
In this guide
Maintaining consistent CPAP therapy is crucial for your health and rest, but power outages or travel can disrupt your routine. A reliable battery backup ensures you never miss a night of treatment, providing peace of mind whether you are camping or during a storm.
We evaluated ten leading battery backup options based on compatibility, runtime, portability, and safety features. Our selection includes dedicated CPAP batteries, solar bundles, and versatile power adapters that work with major brands like ResMed and Philips to meet diverse user needs.
Each product listed below highlights key specifications, pros, and cons to help you make an informed decision. Please note that prices and availability change frequently, so verify current details on the retailer site before purchasing to ensure you get the best value.
Top 3 Picks for Best Battery Backup for Cpap Machine
EASYLONGER ES960 PRO CPAP Battery Backup
4.5Editor score
Includes 110W foldable solar panel
Up to 2-3 nights runtime
LiFePO4 battery for safety
EASYLONGER ES720 PRO Dual CPAP Battery
4.8Editor score
540Wh+ total capacity combined
Wireless charging included
Digital display on battery
Top 10 Best Battery Backup for Cpap Machine in 2026 Compared
The following comparison table outlines the key specifications and features of each top-rated battery backup solution to help you quickly identify the right power source for your CPAP needs and lifestyle.
ProductsSpecificationsEditor scorePrice
Best Budget
KFD 12V-24V Car Charger
Input 12V-24V DC
Output 24V 65W
Warranty 36 Months
Compatible AirSense 11
4.3Editor score
Editor's Choice
EASYLONGER ES960 PRO Bundle
Capacity 297.6Wh
Solar Panel 110W
LiFePO4 Battery Type
Runtime 2-3 Nights
4.5Editor score
Best Premium
EASYLONGER ES720 Bundle
Capacity 266.4Wh
Car Adapter 84W
Pass-Through Charging
Multiple USB Ports
20V CPAP Power Cord
Input 20V 65W
Output 24V 65W
Certified CE FCC
For AirSense 11
4.7Editor score
Pilot-24 Lite Adaptor
For Pilot-24 Lite
DC Output Cable
Charging Adapter
Backup Power Ready
4.0Editor score
EASYLONGER ES960 Bundle
Battery ES960
Panel ESP110 110W
Solar Charging Capable
Wide Device Support
4.5Editor score
EASYLONGER Dual Battery Kit
Total 540Wh Capacity
Wireless Charging
Digital Display
Dual Battery System
4.8Editor score
EASYLONGER ES400 Bundle
Capacity 148Wh
Solar Panel 110W
Plug and Play
Multi Device Support
4.0Editor score
Medistrom Pilot-24 Bundle
Capacity 95Wh
TSA Approved
Runtime 16 Hours
Mask Wipes Included
4.5Editor score
EASYLONGER ES720 PRO Kit
Capacity 276Wh
Car Adapter Included
4 Charging Methods
Safety Switch Included
5.0Editor score
1. KFD 12V-24V Car Charger DC Adapter – Best Budget Adapter
KFD 12V-24V Car Charger DC Adapter
Input Voltage 12V-24V
Output Power 65W
Total Cable Length 2.6M
Certifications CE FCC RoHS
The KFD 12V-24V Car Charger DC Adapter offers a budget-friendly way to power your ResMed AirSense 11 using an external power source. With a strong rating of 4.3 stars, this adapter converts 20V USB C input to 24V DC output for your CPAP machine.
Pros
- Very affordable compared to full battery units
- Works with 20V USB C power banks
- Includes 36 month warranty
- Long cable length for flexibility
Cons
- Requires separate power bank or station
- Only compatible with ResMed AirSense 11
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This unit is designed to work with power stations, banks, or battery backups that support 20V PD input. It ensures your machine gets the necessary 65W output to run efficiently. The cable is 2.6 meters long, allowing you to place your battery conveniently while you sleep.
While it lacks built-in storage, it is an excellent component for a custom backup system. The main trade-off is the need for a separate battery source. However, for those who already own a power bank, this adapter is a cost-effective bridge to uninterrupted therapy.
You should buy this if you need a reliable connector for your existing power setup. It is ideal for users looking to save money on a full kit while ensuring their ResMed AirSense 11 stays powered during travel or outages.
Flexible Input Options
The adapter accepts 12V to 24V input allowing you to use car outlets or various battery packs with the correct voltage rating.
Certified Safety
It is CE, FCC, and RoHS certified ensuring that the electrical output meets safety standards for medical devices like CPAPs.
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2. EASYLONGER ES960 PRO – Best Overall CPAP Battery
EASYLONGER ES960 PRO CPAP Battery Backup
Battery Capacity 297.6Wh
Solar Panel 110W Foldable
LiFePO4 Battery Chemistry
Runtime Up to 3 Nights
The EASYLONGER ES960 PRO stands out as a top choice for comprehensive CPAP power needs. Rated highly for its bundle of battery and solar panel, it provides reliable power for travel and emergencies without needing grid access.
Pros
- Includes solar panel for off-grid charging
- Long runtime without humidifier
- Safe LiFePO4 battery cells
- Wide compatibility with major brands
Cons
- Exceeds TSA limits at 160Wh
- Bulky for carry-on travel
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This system includes a 297.6Wh LiFePO4 battery which ensures safety and longevity. The included 110W solar panel with MPPT technology allows for efficient recharging in sunlight. It supports 12V, 19V, and 24V outputs covering most common CPAP models.
The main limitation is its size and weight, making it unsuitable for air travel due to TSA restrictions on batteries over 160Wh. However, for camping, RVing, or home backup, the extended runtime and solar capability make it a superior choice.
Ideal for users seeking a complete standalone power solution, this bundle offers peace of mind. Whether you are preparing for storm season or planning a road trip, this kit keeps your therapy running smoothly.
Solar Recharging Power
The 110W panel features a 23.4% conversion efficiency enabling quick recharges outdoors to keep your battery ready for the next night.
Versatile Output Ports
It offers multiple ports including Anderson and USB C allowing you to charge other devices like phones while powering your CPAP machine.
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3. EASYLONGER ES720 PRO Dual Battery – Best Premium Combo
EASYLONGER ES720 PRO Dual CPAP Battery
Total Capacity Over 540Wh
Wireless Charging Built-in
Digital Display on Battery
Safety BMS Protection Included
For those requiring extended power, the EASYLONGER ES720 PRO Dual CPAP Battery offers unmatched capacity. This premium kit combines two batteries to provide up to 4-6 nights of runtime without a humidifier, ensuring uninterrupted therapy.
Pros
- Massive capacity for long trips
- Includes wireless charging for phones
- Digital display shows battery status
- Pass-through charging available
Cons
- Higher price point than single units
- Heavy to carry for some users
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The ES720 PRO features upgrades like a digital display and wireless charging, making it a smart hub for all your devices. It includes multiple cables for broad compatibility with ResMed and Philips machines. The built-in BMS ensures safety against overcharging.
The trade-off is the cost and weight associated with such a powerful system. It is less portable than smaller units. However, for long off-grid stays or critical home backup, the reliability and extra features justify the investment for serious users.
Buy this if you need maximum power and convenience. It is perfect for RV owners or those living in areas with frequent power outages where you need a robust and reliable battery system for multiple devices.
Wireless Charging Feature
The PRO model adds 15W wireless charging allowing you to place your phone on the unit to charge without extra cables.
Fast Recharge Options
You can recharge via AC wall outlet USB-C PD solar or car outlets giving you four different ways to power up quickly.
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4. 20V CPAP Power Cord for ResMed – Best Simple Cable
20V CPAP Power Cord for ResMed
Input 20V 65W PD
Output 24V 65W DC
Certified CE FCC RoHS
Fits AirSense 11 and Mini
The 20V CPAP Power Cord is a straightforward solution for users who already own a compatible power bank or station. With a 4.7 rating, it is praised for its reliable connection to ResMed AirSense 11 and AirMini machines.
Pros
- Affordable solution for existing power banks
- High efficiency for low loss
- Short setup time for users
- Certified quality for safety
Cons
- No battery storage included
- Requires specific PD power source
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It requires a power source that outputs at least 20V 65W via USB C PD to function correctly. This adapter converts that signal to the 24V DC your CPAP needs. The cable is short and designed to minimize voltage drop during operation.
The main constraint is compatibility; it will not work with lower voltage power sources like standard 5V or 9V chargers. Users must verify their battery specifications first. Despite this, it is a cost-effective way to power your device off-grid.
Recommend this if you want a simple cable for travel. It is best suited for tech-savvy users who know their power bank can supply the necessary 65W output to run the CPAP consistently without issues.
Quick Setup Process
To connect first plug the USB C end wait a few seconds then plug the CPAP end into the device for seamless power transfer.
Reliable Build Quality
This product is rigorously tested by the manufacturer ensuring it meets safety and performance standards for medical devices.
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5. Pilot-24 Lite Charging Adaptor – Best for Medistrom Users
Pilot-24 Lite Charging Adaptor
For AirSense 11 CPAP
Includes DC Output Cable
Includes Charging Adapter
Backup Ready Mode
This adapter is designed specifically for users who already own the Medistrom Pilot-24 Lite battery system. It enables the battery to work with AirSense 11 CPAP machines ensuring uninterrupted therapy when power fails or during travel.
Pros
- Ensures uninterrupted therapy during outages
- Compatible with Medistrom Pilot-24
- Simple connection setup
- Good for travel scenarios
Cons
- Does not include the battery unit
- Limited to specific battery model
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The kit includes a DC Output Cable and a Charging Adapter Cable for the machine. This allows you to connect the battery directly to the CPAP without needing extra adapters. The backup mode automatically switches power when the main source fails.
Note that this purchase does not include the battery itself. You must already own the Pilot-24 Lite to use this kit. For those who do, it is an essential accessory to maintain your therapy setup while on the go.
Buy this if you need to upgrade your connection setup for the Medistrom system. It is best for users who value reliability and want to ensure their existing battery system works seamlessly with newer CPAP machines.
Automatic Switching
If main power fails the battery automatically takes over therapy ensuring no need to reconnect anything during an emergency outage.
On-the-Go Ready
The DC output cable connects directly to the battery allowing therapy without a main power source anywhere you travel.
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6. EASYLONGER ES960 Battery Bundle – Best Complete Off-Grid Kit
EASYLONGER ES960 Battery Bundle
Battery ES960 Included
Panel ESP110 110W
Solar Charging Capability
Plug and Play Setup
The EASYLONGER ES960 Battery Bundle provides a complete solution for off-grid power independence. This kit includes the battery and a solar panel ensuring your CPAP stays powered anywhere without needing external electricity sources.
Pros
- Complete system for off-grid use
- Solar recharging for independence
- Compatible with major CPAP brands
- Foldable solar design
Cons
- High cost for full bundle
- Not portable for travel
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The solar charging capability allows you to recharge the battery using clean energy outdoors. It supports a wide range of devices including AirSense 10/11 and DreamStation 2. The plug-and-play setup makes it easy to connect your device quickly.
While it is great for camping or emergency backup, it is less ideal for travel due to weight. The investment is higher but offers peace of mind for those who rely on their CPAP daily. It is a robust solution for extended outdoor stays.
Choose this if you want a turn-key power system. It is best for users who prioritize convenience and sustainability when powering their medical devices during road trips or emergencies.
Foldable Solar Design
The foldable solar panel design with plug-and-play connection ensures convenient setup anywhere in a campsite or backyard.
Wide Device Compatibility
It supports ResMed AirSense 10/11 AirCurve 10/11 and DreamStation 2 covering most popular CPAP machine models.
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7. EASYLONGER Dual CPAP Battery – Best Extended Capacity
EASYLONGER Dual CPAP Battery
540Wh+ Total Capacity
Two Batteries Included
Extended CPAP Runtime
All-in-One Power Hub
This dual battery system is designed for those who need maximum runtime without daily recharging. It includes both the ES720 and ES720 PRO models providing a massive 540Wh+ combined capacity for extended CPAP use.
Pros
- Longest runtime in category
- Digital display on PRO model
- Charges multiple devices
- Safety features included
Cons
- Expensive compared to single units
- Heavy to transport
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The PRO model features a digital display and stronger output for fast charging. Both batteries offer ports for USB devices allowing you to power your phone or other gear. This setup is ideal for long camping trips or remote home backup.
The primary drawback is the bulk and cost. Carrying two batteries adds weight to your setup. However, for users needing non-stop therapy for 4-6 nights without access to power, this capacity is unmatched in the current market.
Buy this if you need a power hub for your entire setup. It is best for families or long trips where reliability and battery life are more important than portability.
Extended CPAP Runtime
This system provides 2-3 nights per battery and 4-6 nights combined when humidifier is off giving days of reliable therapy.
All-in-One Power Hub
Both batteries feature cigar ports USB ports and adjustable DC outputs allowing you to power laptops phones and gaming devices.
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8. EASYLONGER ES400 Bundle – Best Lightweight Solar Kit
EASYLONGER ES400 Bundle
Battery Capacity 148Wh
Solar Panel 110W
Plug and Play Setup
Multi-Device Support
The EASYLONGER ES400 Bundle offers a balance of weight and functionality for users who need reliable power without bulk. It includes a compact 148Wh battery and a solar panel for off-grid power independence.
Pros
- Lighter than other bundles
- Fast solar charging
- Easy setup for camping
- Affordable solar option
Cons
- Smaller battery capacity
- Shorter runtime than PRO
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The solar panel charges the battery quickly outdoors. It is designed for the ES400 AIR meaning no extra adapters are needed for setup. It supports CPAPs plus phones and tablets making it versatile for travel use.
While the battery is smaller than the PRO models, it is sufficient for single users or shorter trips. The main trade-off is runtime; you may need to recharge more often. But for light use and simplicity, it is a great option.
Choose this if you want a lighter solar solution. It is best for weekend camping trips or for users who prioritize portability over multi-night runtime.
Fast Solar Charging
The 110W foldable solar panel provides efficient outdoor recharging for extended use without needing grid power.
Simple Plug-and-Play
Designed for the ES400 AIR this kit requires no extra adapters or converters needed for immediate setup anywhere.
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9. Medistrom Pilot-24 Lite Bundle – Best Travel Battery Kit
Medistrom Pilot-24 Lite Bundle
Capacity 95Wh TSA Approved
Runtime Up to 16 Hours
Includes Mask Wipes
FAA Compliant Battery
The Medistrom Pilot-24 Lite is a top choice for travelers who need FAA compliant power. With 95Wh capacity it fits in carry-ons and delivers up to 16 hours of runtime for your CPAP therapy.
Pros
- TSA approved for air travel
- Compact and lightweight
- Includes cleaning wipes
- Reliable portable power
Cons
- Limited to single night use
- May need extra cables for other models
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This bundle includes unscented mask wipes for hygiene maintenance. The battery works with AirSense 10 and 11 models. It recharges in 2-3 hours making it easy to reset between hotel stays or flights.
The capacity is not intended for multi-day outdoor trips. It is optimized for travel and short emergencies. For extended camping you may need a larger system. However for most travelers this is the safest and most practical choice.
Buy this if you fly often or travel frequently. It ensures you can take your therapy anywhere without worrying about airline regulations or heavy gear.
Travel Friendly Design
TSA approved and FAA compliant at 95Wh this battery fits in carry-ons and powers CPAPs in-flight and at hotels.
Unscented Freshness
The included wipes are unscented and made with aloe vera for cleaning your mask and moisturizing your hands.
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10. EASYLONGER ES720 PRO Kit – Best Dual-Mode Power Supply
EASYLONGER ES720 PRO Kit
Capacity 276Wh Battery
Includes Car Adapter
Smart Fast Charging
Complete Kit Included
This ES720 PRO kit comes with a battery and a car adapter offering dual-mode power supply. It is designed for major ResMed and Philips machines ensuring reliable power for camping or emergency backup.
Pros
- High rating from users
- Includes car adapter for charging
- Digital display on unit
- Complete kit ready to use
Cons
- Price is higher than adapter only
- Requires proper voltage input
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The battery supports four charging methods with a digital display to monitor status. The adapter features a safety switch and can charge laptops or phones simultaneously. This makes it a smart power hub for your devices.
The high rating reflects user satisfaction with its reliability and ease of use. The only limitation is the price compared to a basic cable. But for those needing a complete solution for road trips, it is a top pick.
Choose this if you need a full power kit. It is best for road trippers who want to charge their CPAP while driving without extra cables.
Dual-Mode Power
The 276Wh battery powers CPAP for 2-3 nights offline and the adapter provides car charging for multi-day trips.
Complete Kit Ready
Includes battery adapter full cable set and carrying bag ready to use for camping road trips and home backup.
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Buying Guide – How to Choose the Best Battery Backup for Cpap Machine
Choosing the right battery backup requires looking at capacity, compatibility, and portability to match your specific travel or emergency needs.
Battery Capacity and Runtime
Battery capacity is measured in Watt-hours (Wh) and determines how long your CPAP will run. Higher capacity units like 200Wh+ can provide multiple nights of use. Check the manufacturer's runtime estimates based on pressure settings and humidifier use to ensure you get enough time.
Always select a capacity that exceeds your typical power outage or travel duration by at least 20 percent to stay safe.
Compatibility with Your CPAP
Not all batteries work with every CPAP machine. Check the output voltage required by your device (usually 12V, 19V, 20V, or 24V). Ensure the battery provides the correct DC plug type or includes the right cables for your model such as ResMed AirSense or Philips DreamStation.
Verify cable compatibility before buying to avoid needing extra adapters.
Travel Regulations and TSA Approval
If you plan to fly, ensure your battery is under 100Wh or 160Wh depending on airline rules. Batteries over 100Wh may require airline approval or cannot be carried in the cabin. For air travel choose a smaller unit that is explicitly TSA approved.
For road trips you can choose higher capacity units without these restrictions.
Solar Charging Options
Solar panels are useful for off-grid camping or long outages. Look for bundles that include a compatible solar panel with MPPT technology for efficient recharging. Consider how much sun you typically have access to during your travels.
Solar charging adds independence but requires direct sunlight to work effectively.
Pass-Through Charging Capability
Pass-through charging allows you to charge the battery while it powers your CPAP simultaneously. This is essential if you are plugged into a wall outlet and want to top up the battery for later use without stopping your therapy.
Check if the product mentions pass-through support before buying.
Safety Certifications
Medical devices like CPAPs are sensitive to power fluctuations. Ensure the battery or adapter has safety certifications like CE FCC or UL. Built-in BMS (Battery Management Systems) protect against overcharging and overheating.
Prioritize products with proven safety features to protect your health and equipment.
Portability and Weight
Lighter batteries are easier to carry for camping or travel. Heavy bundles with solar panels are great for home backup but can be cumbersome to pack. Consider how you will transport the unit to your destination.
Balance your power needs with the weight you can comfortably carry.
Price and Value
Prices vary from affordable adapters to expensive bundles. Determine if you need just a cable or a full system with solar and backup storage. Sometimes buying separate components can be cheaper than a bundle.
Look for warranties to ensure value over time.
How to Use and Care for Your Battery Backup for Cpap Machine
Start by fully charging your battery before first use to ensure optimal performance. Connect the CPAP directly to the battery using the provided cables and turn on the machine to confirm it powers up correctly.
Store the battery in a cool dry place away from direct sunlight to prevent damage. If you are not using it for a long time charge it to around 50 percent before storing to preserve battery health.
Regularly inspect your cables and ports for dirt or wear. Use soft wipes to clean the connectors and ensure a secure connection. Always test your setup at home before relying on it during travel or emergencies.
Frequently Asked Questions
Can I use any power bank for my CPAP?
Not any power bank will work; you need one that supports the correct voltage and wattage usually 65W or more. Check your CPAP manual for power requirements and ensure the battery output matches that voltage.
How long does a CPAP battery last?
Runtime varies by capacity and settings. A 100Wh battery may last one night without a humidifier, while larger units can last several days. Check manufacturer estimates for your specific model.
Are CPAP batteries TSA approved?
Many batteries under 100Wh are TSA approved. Larger ones may require approval. Always check airline rules before flying to avoid issues at security.
Can I use solar panels to charge my battery?
Yes if the battery supports solar input and you use a compatible panel. Ensure the panel output matches the battery input requirements.
Do I need an adapter for every CPAP model?
Some batteries come with universal adapters but you may need a specific cable for your model. Check compatibility lists before purchasing.
What happens if the battery dies overnight?
Most machines stop working. Keep a spare battery or charging setup nearby for emergencies to ensure uninterrupted therapy.
Is pass-through charging safe for the battery?
Yes if the unit is designed for it. It allows charging while in use but verify product specs to ensure safe operation.
Can I use the battery for other devices?
Many units have USB ports allowing you to charge phones or laptops. Check the output specs to ensure they match your devices.
Final Thoughts on Choosing the Best Battery Backup for Cpap Machine
We have reviewed the top 10 battery backup solutions ranging from compact travel kits to robust solar bundles. Each offers unique benefits depending on your power needs and travel habits.
Prioritize capacity and compatibility first to ensure your CPAP stays powered. Consider portability and solar options if you plan to camp or face frequent outages.
Please verify current prices and availability on the retailer site before purchasing as details can change. With the right backup you can maintain therapy peace of mind anywhere.