CPAP backup guide
These picks use verified product records and transparent backup-power profiles built around our cited CPAP preset. Check your exact machine, settings, adapter, and required hours before choosing a battery.
Shortlist
A balanced match for a conservative single-machine CPAP profile with additional battery headroom and UPS support.
56 W planning runtime: about 15.5 hr
Trade-off: It weighs 27.6 lb, so lighter eligible options may be easier to move.
The top match under 15 lb that still meets the calculator’s current eight-hour typical CPAP planning requirement.
56 W planning runtime: about 9.7 hr
Trade-off: Its battery capacity cannot be expanded later.
A close capacity fit for the cited eight-hour typical CPAP planning load, selected after the overall and lightweight picks.
56 W planning runtime: about 15.5 hr
Trade-off: Solar input is limited to 400 W.
A larger-capacity match for longer coverage, higher documented device draw, or carefully planned additional loads.
56 W planning runtime: about 31.1 hr
Trade-off: It weighs 41.7 lb, so lighter eligible options may be easier to move.
| Pick | Product | Capacity | 56 W planning runtime | Weight | Reported UPS support |
|---|---|---|---|---|---|
| Best overall for CPAP | EcoFlow DELTA 3 Plus | 1,024 Wh | About 15.5 hr | 27.6 lb | Yes · 10 ms reported transfer |
| Best lightweight option | Jackery Explorer 600 V2 | 640 Wh | About 9.7 hr | 14.1 lb | Yes · 20 ms reported transfer |
| Best for overnight use | Jackery HomePower 1000 Plus v2 | 1,024 Wh | About 15.5 hr | 23.8 lb | Yes · 10 ms reported transfer |
| Best higher-capacity option | Anker SOLIX C2000 Gen 2 | 2,048 Wh | About 31.1 hr | 41.7 lb | Yes · 10 ms reported transfer |
Runtime uses stored estimated usable energy divided by the cited 56 W planning load. It is not a guarantee for a specific CPAP or setting. UPS support is a manufacturer-reported product feature, not a medical suitability certification.
Category details
Best overall for CPAP
A balanced match for a conservative single-machine CPAP profile with additional battery headroom and UPS support.
Reference CPAP profile: 900 Wh · 75 W running. Match score 88/100.
Trade-off: It weighs 27.6 lb, so lighter eligible options may be easier to move.
Best lightweight option
The top match under 15 lb that still meets the calculator’s current eight-hour typical CPAP planning requirement.
Reference CPAP profile: 622 Wh · 56 W running · 15 lb maximum. Match score 83/100.
Trade-off: Its battery capacity cannot be expanded later.
Best for overnight use
A close capacity fit for the cited eight-hour typical CPAP planning load, selected after the overall and lightweight picks.
Reference CPAP profile: 622 Wh · 56 W running · 8 hours. Match score 85/100.
Trade-off: Solar input is limited to 400 W.
Best higher-capacity option
A larger-capacity match for longer coverage, higher documented device draw, or carefully planned additional loads.
Reference CPAP profile: 1,300 Wh · 100 W running. Match score 82/100.
Trade-off: It weighs 41.7 lb, so lighter eligible options may be easier to move.
Settings matter
Heated humidification and heated tubing can materially change energy use. Because the effect depends on the machine and settings, our cited planning modes should not be treated as universal on/off ratings.
These settings may reduce consumption. The current 56 W typical mode produces 448 Wh of device energy over eight hours and a 622 Wh suggested rated capacity after existing calculator allowances.
The 56 W input is a cited typical planning value, not a guaranteed humidifier-off measurement for every machine.
Heat can increase demand. The existing 73 W conservative mode produces 584 Wh of device energy over eight hours and a 810 Wh suggested rated capacity after the same allowances.
This is a higher cited planning input, not a model-specific humidifier-on rating. Enter your CPAP's documented value when known.
Source: ResMed AirSense 11 user guide.
Calculator-backed example
One CPAP using the cited 56 W typical mode for eight hours. The calculator keeps the device, duration, and operating mode editable.
Size this setupIf the station travels with you, compare weight after confirming enough capacity. A lighter battery that cannot cover the documented overnight load is not a suitable trade-off.
Our current normalized catalog does not contain verified sound-level measurements, so noise is not ranked. Check manufacturer operating modes and fan behavior, and keep ventilation paths clear.
The comparison shows reported UPS support and transfer time where stored. Confirm compatibility and acceptable interruption behavior with both manufacturers before relying on pass-through operation.
Compare broader outage loads in the Home Backup guide or travel-focused choices in the Camping guide.
The current cited typical preset uses 56 W for eight hours, or 448 Wh of device energy. After the calculator’s existing conversion-loss and reserve assumptions, the suggested rated capacity is 622 Wh. Your machine, pressure, humidifier, heated tubing, and power adapter can change the result, so use its documented input when available.
Heated humidification and heated tubing can increase consumption, but the increase is machine- and setting-specific. Our 56 W typical and 73 W conservative modes are planning inputs from the cited ResMed guide; they are not universal humidifier-off and humidifier-on ratings.
Some catalog products report UPS support and a transfer-time specification, but that does not establish medical suitability. Confirm the CPAP manufacturer’s power requirements, the station’s UPS behavior, and whether any interruption is acceptable for your use.
No. Eligibility and ranking use capacity, output, home-backup feature, portability, and longevity criteria from the same deterministic recommendation system. Price and commission rates are not ranking inputs.
This guide uses manufacturer specifications and transparent planning profiles, not hands-on testing claims. Check the linked product record and manufacturer documentation before purchase.
