Finding a dependable CPAP battery backup is essential for uninterrupted sleep during outages or travel. This guide highlights five top-rated options that pair portability with sufficient run-time for most CPAP setups. Each product is evaluated on capacity, compatibility, charging options, and durability to help you choose confidently.
Comparison at a glance
| Product | Capacity | CPAP Compatibility | Key Benefit |
|---|---|---|---|
| Medistrom Pilot-24 Lite Bundled | 95Wh | Many 24V PAP devices | Compact backup with quick recharge |
| EASYLONGER ES720 | 266.4Wh | AirSense 11/10, AirCurve 10/11, DreamStation, etc. | Versatile, includes multiple cables |
| Portable Outlet PO-160UPSv2 | 159Wh | Most North American CPAPs | Uninterruptible power supply with long runtime |
| EASYLONGER ES400 | 148Wh | ResMed S9/AirSense 10/11, DreamStation, Luna | Pass-through charging feature |
| BiXPower BP100 X2 | 200Wh (two 100Wh packs) | AirSense 11; may vary by model | Dual batteries for extended use |
Medistrom Pilot-24 Lite Bundled with Cables

The Pilot-24 Lite provides uninterrupted sleep by delivering reliable backup power for various 24V PAP devices. It is designed for quick setup and rapid recharge, with a full recharge typically in 2-3 hours. The battery uses a durable aluminum case and genuine LG cells for durable performance and protection against wear. When main power fails, this compact unit aims to keep CPAP therapy continuous, making it suitable for home outages or travel.
EASYLONGER CPAP Battery Backup Power Supply ES720

With a capacity of 266.4Wh, the ES720 is a versatile CPAP battery backup designed to power a range of machines, including AirSense and DreamStation models. It ships with four DC cables and features adjustable output voltages (12V/16.5V/20V/24V) for compatibility with many devices. Its all-in-one design supports off-grid use and can charge portable devices via USB ports, catering to both CPAP needs and general charging requirements during trips.
Portable Outlet PO-160UPSv2 159Wh UPS CPAP Battery

The PO-160UPSv2 functions as a true UPS, powering all CPAP, BiPAP, and related devices without extra adapters. It emphasizes cooling through its redesigned circuit board and raised chassis and includes a balance of DC and USB outputs. It’s ideal for extended outages and hurricane seasons, offering an 8- to 18-hour runtime depending on the system and settings.
EASYLONGER CPAP Battery ES400 AIR

The ES400 AIR offers 148Wh capacity with cables for multiple CPAP models, including ResMed and Philips DreamStation lines. It supports pass-through charging, enabling CPAP use while the battery is charging. It is well-suited for camping or RV trips where a compact, reliable power source is needed for a full night of therapy.
BiXPower BP100 X2 High Capacity Batteries

This package provides two 100Wh BP100 batteries designed for ResMed AirSense 11 CPAP machines. The kit includes a special DC cable, a Y25 split cable, and an AC charger, allowing flexible configurations. Real-world runtime varies with device settings and accessories like humidifiers, but users can mix and match batteries for longer sessions or travel planning.
Buying Guide
- Capacity and run-time: Higher watt-hours (Wh) generally translate to longer therapy time. If you travel or experience frequent outages, aim for 150Wh or more for multi-night use with standard CPAP setups.
- Compatibility: Confirm that the battery supports your CPAP model, especially if you use heated tubes, humidifiers, or newer machines. Look for model lists or cables included in the package.
- Output options: Batteries with multiple DC outputs and USB ports offer greater flexibility for charging ancillary devices like phones or tablets during trips.
- Charge-and-use: Pass-through charging allows you to run your CPAP while the battery charges, reducing downtime during outages or while traveling.
- Durability and build quality: Aluminum cases and high-quality cells improve longevity and provide protection against everyday wear and tear, especially if you travel frequently.
- Weight and portability: Lighter units are easier to carry during flights or outdoor use, but may sacrifice run-time. Balance weight with your nightly power needs.
- Warranty and support: Check the warranty period and customer support options. A solid warranty can protect your investment for the long term.
- Single vs. multi-battery setups: Some users benefit from carrying two batteries in parallel or cascading arrangements for extended trips, while others prefer a single larger capacity unit.
When selecting a CPAP battery, align capacity with your typical nightly therapy duration and equipment (humidifier, heated tubing). If you frequently experience outages or travel to areas with unreliable power, consider a model that supports pass-through charging and offers multiple cables for broad compatibility. Always verify that the included cables match your CPAP device and that the battery’s voltage output corresponds to your machine’s requirements.