Best Uninterruptible Power Supply for CPAP
Finding a reliable CPAP backup power source is essential for uninterrupted sleep during outages, travel, or camping. This article reviews five top UPS options that balance portability, capacity, and compatibility with common CPAP machines. Each choice is evaluated for a typical home-use CPAP setup, taking into account battery life, outlets, ease of use, and safety features. Use the buying guide to compare runtimes, connector types, and warranty coverage to fit your specific CPAP model and lifestyle.
| Product | Brand | Approx. Capacity | Key Outlet Type | Notable Feature |
|---|---|---|---|---|
| APC BE425M | APC | 425VA / 225W | 6 NEMA 5-15R | Wall-mountable; service-replaceable battery |
| EASYLONGER ES960 | EASYLONGER | 297.6Wh | DC outputs plus CPAP-specific adapters | Wide compatibility with many CPAP brands |
| Portable Outlet PO-160UPSv2 | Portable Outlet | 159Wh | CPAP-friendly outlets and USB | Off-grid and travel-friendly |
| Amazon Basics UPS 1500VA | Amazon Basics | 1500VA / 900W | 10 outlets | Line-interactive design with surge protection |
| Orion 1000VA | Orion Power Systems | 1000VA / 600W | 10 outlets | Extended warranty and LCD status |
APC BE425M Battery Backup and Surge Protector

APC BE425M provides 425VA / 225W of backup power with a mix of five battery-backed outlets and two surge-only outlets, suitable for CPAP equipment alongside essential devices. It includes a 5-foot power cord and a right-angle wall plug for space-efficient setup. The unit is wall-mountable, which helps keep a compact bedside or home office arrangement. Battery replacement is service-based, not user-replaceable, affecting long-term maintenance planning for frequent users.
EASYLONGER ES960 CPAP Backup Power Supply

The ES960 delivers 297.6Wh capacity, enabling CPAP use for multiple nights when the humidifier and heated tube are off. It comes with CPAP DC cables and supports a broad range of devices, including ResMed and Philips DreamStation lines. While not all features are compatible with every CPAP model, the ES960’s versatility makes it a strong option for travelers or homes with frequent outages. Run time varies with CPAP settings and accessories connected.
Portable Outlet PO-160UPSv2 CPAP UPS

The PO-160UPSv2 is positioned as a versatile CPAP battery that powers CPAP/BiPAP/APAP devices and USB devices during outages. It emphasizes long-duration output, with claims of 8–18 hours depending on system setup, humidifier usage, and travel versus home use. It is also marketed as FSA/HSA eligible with warranty coverage, and offers the option to chain batteries for extended outages, though this requires compatible connections and careful power management.
Amazon Basics UPS 1500VA/900W

Amazon Basics offers a line-interactive UPS with 10 outlets (5 surge-protected, 5 surge-protected/battery-backup). With 1500VA/900W rating, it provides a balance of power and protection, making it suitable for CPAP machines along with other essential electronics. Runtime is dependent on connected devices, so CPAP supplementation should be planned for the typical wattage of a CPAP setup. This option emphasizes a straightforward, widely compatible design for home use.
Orion 1000VA/600W UPS

Orion’s 1000VA/600W unit features 10 outlets and a color LCD for quick status checks, plus a 37-month warranty for electronics and battery. The package targets a broad range of devices beyond CPAP, including PCs and networking gear, while still supporting CPAP machines through its ample outlets. The extended warranty and management software offer added peace of mind for long-term usage.
Buying Guide
- Capacity and runtime: Match the UPS capacity to your CPAP device’s wattage and desired backup duration. A CPAP with a heated humidifier draws more power, so plan for longer runtimes if you use those features.
- Outlets and configuration: Consider how many outlets you need for the CPAP and any essential peripherals. Decide between battery-backup outlets and surge-only outlets based on your setup.
- Form factor and placement: Wall-mountable units save space; portable models are better for travel. Ensure there is a convenient location near your bed or travel bag.
- Battery replacement and maintenance: Some units have user-replaceable batteries; others require service. Factor in maintenance accessibility and potential service costs.
- Safety and protection: Look for surge protection, short-circuit prevention, and thermal management. UL, CE, and energy efficiency certifications indicate compliance with safety standards.
- Compatibility and cables: Verify CPAP compatibility with DC cables or adapters listed by the manufacturer. Some CPAP brands require specific DC input gauges or connectors.
- Warranty and service: Longer warranties reduce total cost of ownership. Check what the warranty covers (electronics vs. battery) and the duration.
- Travel readiness: If you travel, weigh the weight and battery capacity against airline restrictions and in-flight power needs. Some units exceed airline limits when fully charged.
- Operating guidelines: Keep UPS in a cool, ventilated area and avoid overloading outlets. Regularly test backup power to ensure it activates during outages.
Choosing the right CPAP UPS depends on your nightly usage, travel plans, and the CPAP model’s power draw. The five options reviewed provide a spectrum from compact, wall-mountable backups to higher-capacity units suitable for whole-room power protection. Always verify compatibility with your CPAP’s model and consider a model with an accessible battery service or clear replacement path to sustain long-term reliability.