Best Portable Power Station for CPAP 2026

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It’s two in the morning when the ceiling fan winds down and the bedroom goes silent, including the soft hum of your CPAP. A summer storm has taken the power out, and you’re awake, mask on, breathing room air. Or you’re at a campsite with no hookups, wondering whether your machine will make it to sunrise. A battery by the bed, charged and ready, turns both moments into a non-event.

The best portable power station for CPAP backup for most people is the EcoFlow DELTA 3 Plus: 1,024 Wh is enough, by our estimate, for about four nights with the humidifier on low, and it also runs the fridge. For a small bedside or camping battery, the DC-only BLUETTI X30 is built for CPAP. Turning off the humidifier and heated tube stretches any battery the most.

Please read this first. This guide is about batteries, not medical care. Talk to your doctor or equipment supplier before you power your machine from a battery, and check your machine’s user guide. No power station here is a medical device or approved for medical use, and makers say different things: Jackery says its stations are not recommended for medical devices, and EcoFlow’s DELTA 2 manual says its station is not recommended for emergency medical equipment such as hospital-grade ventilators. If your therapy can’t be interrupted, your supplier can tell you what backup they recommend.

Prices change often. Where we show a price, it is the maker’s own store price we saw in October 2026; check the current price before you buy.

Our top picks

CPAP power stations compared

The nights below are our estimates, using 85% of rated capacity and ResMed’s published current draw for an AirSense 10 at a pressure of 10 cm H2O (see the next section). Your pressure, settings, mask fit and room temperature will change the result.

Power station	Capacity	Outputs for CPAP	No humidifier (about 89 Wh/night)	Humidifier on 4 (about 221 Wh/night)	Heated tube + humidifier on 8 (about 472 Wh/night)	About (Oct 2026)
EcoFlow DELTA 3 Plus	1,024 Wh	6 AC outlets, DC	about 9 nights	about 4 nights	about 1.8 nights	$669 (maker)
BLUETTI X30	297 Wh	DC 12V/15V/24V	about 2.8 nights	about 1 night	about 4 hours	$299 (maker)
EcoFlow RIVER 3 Plus	286 Wh	3 AC outlets	about 2.7 nights	about 1 night	about 4 hours	$299 (maker)
Anker SOLIX C300 DC	288 Wh	Car socket, USB-C	about 2.7 nights	about 1 night	about 4 hours	check price
Anker SOLIX C1000 Gen 2	1,024 Wh	AC outlets, DC	about 9 nights	about 4 nights	about 1.8 nights	check price
Goal Zero Yeti 1500 (6th Gen)	1,505 Wh	4 AC outlets, DC	about 14 nights	about 5.8 nights	about 2.7 nights	$1,500 (maker)

How much power does a CPAP use?

Less than most people expect, until the humidifier and heated tube switch on. ResMed’s battery guide lists the current its machines draw from a 12-volt battery through ResMed’s DC converter. For an AirSense 10 at a pressure of 10 cm H2O, it lists:

AirSense 10 setup (ResMed battery guide)	Current at 12 V	About watts	About Wh for 8 hours
SlimLine tubing, no humidifier	0.93 A	11 W	89 Wh
SlimLine tubing, humidifier on 4	2.30 A	28 W	221 Wh
SlimLine tubing, humidifier on 8	3.66 A	44 W	351 Wh
ClimateLineAir heated tube (30°C) + humidifier on 8	4.92 A	59 W	472 Wh

Watts are amps × 12 V; watt-hours are watts × 8 hours, our arithmetic. Higher pressures draw more: at 20 cm H2O with the heated tube and humidifier on 8, ResMed lists 5.61 A, about 67 W. The newer AirSense 11’s user guide gives its 65 W power supply a typical power consumption of 56.1 W and a peak of 73.2 W. Philips’ DreamStation 2 manual says an 80 W power supply is required to support humidification, and that when a battery doesn’t support humidification, you should use the device without it.

The runtime math: usable Wh ≈ battery capacity × 0.85 (the rest is lost in conversion), then nights ≈ usable Wh ÷ Wh per night. Example: the BLUETTI X30’s 297 Wh × 0.85 = about 252 usable Wh. With no humidifier (89 Wh a night) that’s about 2.8 nights; with the heated tube and humidifier on 8 (472 Wh a night) it’s about 4 hours. That’s why BLUETTI’s X30 page tells you to power off the heater and humidifier for longer runtime. Whether you can sleep comfortably without them is a question for your doctor or supplier.

DC or AC? What the CPAP makers say

• ResMed prefers DC. Its battery guide says it strongly recommends using a DC-to-DC converter rather than a DC-to-AC inverter, because converters are more efficient, regulate the voltage and protect the device. The AirSense 11 user guide lists an Air11 DC/DC converter as an accessory; ask your supplier for the right one.
• If you use AC (an inverter), ResMed’s guide recommends a pure sine wave inverter rated at least 300 W continuous and 500 W peak, and warns that some ResMed heated humidifiers must not be used with inverters. Every AC station in this guide exceeds those watt ratings; check your own model’s guide for humidifier rules.
• Philips says to use only a Philips Respironics DC power cord and battery adapter cable on DreamStation 2, as other systems may damage the device.
• In practice: a station’s 12 V car socket can feed your CPAP maker’s own DC converter, which keeps you on the DC path ResMed prefers. Check that the socket’s rating covers the converter, and confirm the setup with your supplier.

What the power station makers say about CPAP

• Jackery says its power stations are not recommended for medical devices or life-support equipment, because power can be interrupted by battery depletion, overload protection or other causes. That’s why no Jackery model is in this guide.
• EcoFlow’s DELTA 2 user manual says the station is not recommended for emergency medical equipment related to personal safety, including hospital-grade ventilators. For general medical equipment, EcoFlow says to follow your doctor’s instructions and keep an eye on the battery so it doesn’t run out.
• Anker SOLIX advises confirming every equipment decision with your clinician or medical equipment supplier, and suggests a written backup plan for outages.
• BLUETTI sells the X30 specifically as a CPAP power bank and says it works with up to 90% of CPAPs on the market; if you’re unsure about your machine, it asks you to contact its service team.
• Goal Zero lists CPAP among the devices its Yeti 1500 can power.

The best portable power stations for CPAP

1. EcoFlow DELTA 3 Plus: best for power outages

For home backup, the DELTA 3 Plus has enough battery for several nights of CPAP and enough output to keep the fridge and a lamp going too. EcoFlow rates it at 1,024 Wh of LiFePO4 battery and 1,800 W output, with six AC outlets. It can sit between the wall and your CPAP and switch to battery in under 10 ms when the power fails (EcoFlow’s figure). It refills from the wall in 56 minutes and takes up to 1,000 W of solar. EcoFlow rates it for 4,000 cycles to 80% with a 5-year warranty, and an extra battery adds 1,024 Wh.

• Good: about four nights with the humidifier on low (our estimate); runs the rest of your outage essentials; fast recharge.
• Watch out: 27.6 lb is a lot for a nightstand; switchover times are the maker’s own figure, so test it with your machine before you need it.
• Best for: households that want CPAP, fridge and phone backup in one box.

Check the EcoFlow DELTA 3 Plus price on Amazon

2. BLUETTI X30: best CPAP-specific battery

The X30 is a 297 Wh power bank made for CPAP machines. It has no AC outlet at all, which is the point: its DC5525 outputs at 12 V/5 A, 15 V/4 A and 24 V/4 A feed your machine directly, and BLUETTI includes cables for machines such as the ResMed AirSense 10 and 11, AirMini, Philips DreamStation and Transcend. It weighs about 4 lb, has pass-through charging and a USB-A port for your phone, and cost about $299 on BLUETTI’s store. Two things to know: it uses a ternary lithium (NMC-type) battery rather than LiFePO4, and its warranty is 12 months.

• Good: DC power with no inverter in the way; cables for many CPAP brands; light enough for a weekend bag.
• Watch out: no solar input; at 297 Wh it is far above the FAA’s carry-on limits, so it can’t fly; short warranty.
• Best for: camping and short outages, especially with the humidifier off.

Check the BLUETTI X30 price on Amazon

3. EcoFlow RIVER 3 Plus: best small bedside station

The RIVER 3 Plus is a compact AC station that fits on a nightstand. EcoFlow rates it at 286 Wh, 600 W output, three AC outlets and a switchover under 10 ms, so it can stay plugged in between the wall and your CPAP and take over if the power drops. It weighs 10.4 lb, charges fully in 60 minutes, takes up to 220 W of solar, and can grow to 858 Wh with a clip-on extra battery. EcoFlow rates it for 3,000 cycles to 80%; it was about $299 on EcoFlow’s store.

• Good: small; quiet (under 30 dB, maker); always-on backup role; expandable.
• Watch out: about one night with the humidifier on low (estimate); running through the inverter costs some efficiency compared with DC.
• Best for: overnight blackouts in an apartment or bedroom.

Check the EcoFlow RIVER 3 Plus price on Amazon

4. Anker SOLIX C300 DC: best DC-only power bank

The C300 DC has 288 Wh of LiFePO4 battery and no AC outlets: its 300 W total output comes from USB-C, USB-A and a car socket. That car socket is where a CPAP maker’s DC converter plugs in, and the two 140 W USB-C ports charge laptops and phones. It recharges to 80% in about an hour through USB-C, and takes up to 100 W of solar. Note that the regular Anker SOLIX C300 is a different model with an AC outlet.

• Good: LiFePO4 battery; DC-only design fits ResMed’s DC preference; very portable.
• Watch out: you need your CPAP maker’s DC converter or cable; nothing with a wall plug will work; Anker doesn’t list the car socket’s amp rating in the specs we saw.
• Best for: campers and travelers who already have a DC cord for their machine.

Check the Anker SOLIX C300 DC price on Amazon

5. Anker SOLIX C1000 Gen 2: best fast-recharge 1 kWh

The C1000 Gen 2 matches the DELTA 3 Plus on capacity at 1,024 Wh and adds 2,000 W of output with a 3,000 W surge, a 10 ms UPS switchover and 4,000 cycles to 80%. Its party trick is recharging: 0 to 100% in 49 minutes at 1,600 W in UltraFast mode, which you switch on in the app (Anker says the battery needs to be above 68°F). That matters in a rolling outage when the grid comes back for an hour. It has 10 ports and takes up to 600 W of solar.

• Good: about four nights with the humidifier on low (estimate); very fast recharge; strong output for other loads.
• Watch out: 24.9 lb; not expandable (the older C1000 was); Anker’s spec table doesn’t list the warranty.
• Best for: places with frequent short outages.

Check the Anker SOLIX C1000 Gen 2 price on Amazon

6. Goal Zero Yeti 1500 (6th Gen): most nights per charge

The 2026 Yeti 1500 is Goal Zero’s new LiFePO4 model (don’t confuse it with the older Yeti 1500X). Goal Zero rates it at 1,505 Wh, 2,000 W continuous and 3,600 W surge, with four AC outlets, a switchover under 15 ms, up to 900 W of solar, 4,000 cycles to 80%, IPX4 water resistance and a 5-year warranty. It charges 0 to 80% in 0.8 hours. By our estimate that’s nearly six nights with the humidifier on low. It was about $1,500 ($1,499.95) on Goal Zero’s store.

• Good: the most CPAP nights in this guide; water resistant for camp use; long warranty.
• Watch out: 52.75 lb; not expandable; the priciest pick here.
• Best for: long outages and multi-night trips without recharging.

Check the Goal Zero Yeti 1500 price on Amazon

How to choose a power station for your CPAP

• Talk to your doctor or equipment supplier first. Ask which DC converter or cable fits your machine, and whether it’s all right to sleep without the humidifier or heated tube when you’re on battery.
• Work out your Wh per night. Use your machine’s figures (or ResMed’s table above): watts × hours slept. Then capacity ≈ Wh per night × nights ÷ 0.85. Two nights at 221 Wh: 221 × 2 ÷ 0.85 = about 520 Wh.
• Go DC when you can. A DC-only battery or a car socket with the CPAP maker’s converter avoids inverter losses, and it’s the setup ResMed prefers.
• Use it as a backup in the outlet. Stations with a fast switchover can stay plugged in between the wall and your machine. Test it before an emergency: unplug the station from the wall and watch the CPAP keep running.
• Make a plan. Keep the battery charged, note your supplier’s phone number, and ask your utility whether it runs a medical-equipment customer program, as Anker’s guide suggests. Have a plan for where you’d go if an outage outlasts your battery.
• Keep fumes out of the bedroom. Battery stations make no exhaust, so they’re fine by the bed. Gas generators are not: CPSC says to run them outside only, at least 20 feet from the house.

Flying with a CPAP: battery rules

None of the batteries in this guide can go on a plane. The FAA limits spare lithium-ion batteries to 100 Wh each; with airline approval you can carry up to two between 101 and 160 Wh, and spare batteries go in your carry-on, never in checked bags. For flights you need a small CPAP battery under those limits, and you should check your airline’s own rules. The good news: ResMed’s AirSense 11 user guide says the machine meets FAA requirements for use on a plane and that medical devices don’t count toward your carry-on limit; empty the humidifier tub before you travel.

Keep exploring

Our portable power stations guide explains sizing for everything else in the house. For more picks, see the best portable power stations, the best power station for camping and the best power station for home backup, or read LiFePO4 vs lithium-ion to understand battery types. Off the grid for longer? See off-grid energy, and browse every model in our portable power stations section.

CPAP power station questions

How long will a power station run a CPAP?

It depends mostly on the humidifier and heated tube. Using ResMed’s figures for an AirSense 10 at 10 cm H2O, a 1,024 Wh station gives about 9 nights without the humidifier, about 4 nights with it on 4, and under 2 nights with the heated tube and humidifier on 8, by our estimate. Higher pressure means less time.

Is a power station approved for use with a CPAP?

No power station in this guide is a medical device. Makers differ: BLUETTI sells the X30 as a CPAP power bank, Goal Zero lists CPAP among supported devices, EcoFlow’s manual says not to rely on its station for emergency medical equipment, and Jackery says its stations are not recommended for medical devices. Ask your doctor or equipment supplier what’s right for your therapy.

Should I use the AC outlet or a DC cable?

ResMed strongly recommends a DC-to-DC converter over an inverter because it’s more efficient and protects the device. If you use AC, ResMed recommends a pure sine wave source of at least 300 W continuous and 500 W peak, and some of its heated humidifiers must not be used with inverters. Philips says to use only its own DC cord and battery adapter.

Can I use the humidifier on battery power?

Often yes, but it costs a lot of runtime: in ResMed’s table, the humidifier and heated tube raise an AirSense 10’s draw from about 11 W to about 59 W at the same pressure. Philips says its DreamStation 2 needs an 80 W power supply for humidification. Ask your supplier whether skipping humidification for a night or two is fine for you.

Can I take a power station on a plane for my CPAP?

No. The FAA allows spare lithium-ion batteries up to 100 Wh, or up to two between 101 and 160 Wh with airline approval, carried in the cabin only. Power stations are far larger. Use a small CPAP battery within those limits and check with your airline before you fly.

Can I recharge a CPAP battery with solar panels while camping?

Most stations here take solar: the RIVER 3 Plus up to 220 W, the C300 DC up to 100 W, and the larger units much more. The BLUETTI X30 has no solar input. A sunny day can often refill the small units, but clouds and panel angle vary, so charge fully before the trip.