Best Portable Power Station for CPAP Machines (2026)

Quick answer: For most CPAP users, the Anker SOLIX C2000 Gen 2 is the best portable power station for CPAP machines — its 2048Wh LFP battery runs a standard CPAP for 34+ hours and its 25dB fan noise will not disturb your sleep. If you want something lighter for a nightstand or travel bag, the Anker SOLIX C1000 Gen 2 is the runner-up, trading some capacity for a 27.6-pound frame and a 49-minute recharge.

Why a Regular Power Station Is not Automatically CPAP-Safe

Not every portable power station belongs next to a bed. A CPAP machine runs continuously for six to nine hours a night, every night, and it is a medical device — a mid-cycle dropout or an underpowered inverter is not just an inconvenience, it can wake you gasping or interrupt therapy your doctor prescribed. Three things separate a power station that is genuinely CPAP-ready from one that merely happens to have an AC outlet:

• Enough capacity for a full night, ideally several. A heated humidifier can roughly double a CPAP's draw, so the battery that looks generous on paper can come up short by 4 a.m.
• Quiet operation. Cooling fans on power stations range from silent to genuinely disruptive. A unit sitting on a nightstand needs to stay under normal room-noise levels through an eight-hour cycle.
• A clean, stable sine wave. CPAP motors and electronics are sensitive to power quality. Every model recommended below outputs true (pure) sine wave AC, which is the safe baseline for medical electronics.

Best Power Stations for CPAP: Compared

Model	Battery	CPAP Runtime (50W / 100W)	Weight	Price	Best For
Anker SOLIX C2000 Gen 2	2048Wh LFP	34.8h / 17.4h	49.4 lb	$1,299	Multi-night backup, quietest option
Jackery Explorer 2000 v2	2042Wh LFP	34.7h / 17.4h	43.5 lb	$999	Best value at 2kWh capacity
Anker SOLIX C1000 Gen 2	1024Wh LFP	17.4h / 8.7h	27.6 lb	$699	Lightest for nightstand or travel
EGO POWER+ PST3040	EGO 56V ARC (swappable)	Varies by pack count	30.9 lb (no batteries)	$499	Owners of the EGO tool ecosystem

Runtime figures assume 85% inverter efficiency and reflect real CPAP draw: roughly 50W for a machine running without a heated humidifier, and 100W with the humidifier and heated tube engaged. See our full CPAP runtime calculator for numbers on additional models.

Top Pick: Anker SOLIX C2000 Gen 2

The C2000 Gen 2 is the unit to buy if you want to stop thinking about CPAP power entirely. Its 2048Wh LFP battery delivers 34.8 hours of runtime at a typical 50W draw — more than four full nights on a single charge, or two nights with a heated humidifier running. That headroom matters during multi-day outages, when recharging opportunities are unpredictable.

What makes it CPAP-specific rather than just large is the noise floor: Anker rates the cooling fan at roughly 25dB, which is quieter than a whispering room. Most power stations in this capacity class run their fans harder under sustained load, and a droning fan six inches from your pillow will undo any benefit of reliable power. The C2000 Gen 2 also charges from empty in about two hours on a 1200W wall input, so a daytime top-up easily covers that night's use.

Check the current price on Amazon. Read our full Anker SOLIX C2000 Gen 2 review for the complete breakdown.

Trade-offs: At 49.4 pounds it is not something you want to carry far, and $1,299 is a real investment. If you only need one solid night of runtime, you are paying for capacity you will rarely touch.

Runner-Up: Anker SOLIX C1000 Gen 2

The C1000 Gen 2 is the pick for anyone who wants a CPAP-capable power station that still fits in a carry-on or sits comfortably on a small nightstand. At 27.6 pounds and 1024Wh, it delivers 17.4 hours at 50W — a full night with real margin, or a night-and-a-half without a humidifier. Its standout feature is a 49-minute full recharge on 1000W AC input, the fastest in this class, so even if you forget to plug it in until the next morning, it is ready again well before bedtime.

Check the current price on Amazon.

Trade-offs: With a heated humidifier running, 8.7 hours is close to the edge of a full sleep cycle — fine most nights, but worth pairing with a habit of plugging in every morning rather than every few days.

Best Value: Jackery Explorer 2000 v2

The Explorer 2000 v2 matches the C2000 Gen 2's capacity almost exactly — 2042Wh versus 2048Wh, and near-identical CPAP runtimes — for $300 less. Jackery's long track record and wide accessory ecosystem make it an easy recommendation for buyers who want flagship capacity without the flagship price and do not mind a slightly heavier 43.5-pound unit and a longer roughly 1.7-hour recharge.

Check the current price on Amazon.

Best for EGO Tool Owners: EGO POWER+ PST3040

If you already own EGO 56V ARC batteries for mowers, blowers, or trimmers, the PST3040 turns them into CPAP backup power without buying a dedicated battery pack at all. Because capacity depends entirely on how many ARC batteries you own and rotate through the unit, it does not fit neatly into a runtime table, but a household with two or three 56V packs on rotation can comfortably cover a night and recharge spares during the day. It is also the most flexible option for anyone who wants to keep buying into one battery platform across yard tools and emergency power.

Check the current price on Amazon.

Do You Need 2000Wh, or Is Something Smaller Enough?

Not every CPAP user needs a flagship-capacity unit. If your goal is a single reliable night, or you are optimizing for a lightweight travel setup rather than multi-day home backup, a smaller battery can be enough — as long as you run the numbers first rather than guessing.

Our CPAP runtime calculator breaks down exact figures for smaller units too: a 288Wh unit like the Anker SOLIX C300 or Jackery Explorer 300 Plus delivers about 4.9 hours at 50W, which is short of a full sleep cycle for most adults and better suited to a nap or a partial night than reliable overnight coverage. A 768Wh unit like the Anker SOLIX C800 Plus stretches that to roughly 13 hours at 50W — enough margin for one full night even with some humidifier use — at a lower price and weight than anything in our top four. The trade-off is no cushion for a second night without recharging, which is why the models we recommend above start at 1024Wh: they are sized to survive real-world use, not just a best-case single night.

If portability matters more than multi-night coverage — a weekend camping trip, a single flight delay, or a car that will recharge the unit by midday — a smaller, lighter unit can be the smarter buy. If you are planning around hurricane season, extended power outages, or simply want to stop thinking about the math, size up.

Matching the Right Unit to How You Actually Use It

Home backup during storms and outages. Multi-day outages are unpredictable, and a CPAP is not a device you want to gamble on. The Anker SOLIX C2000 Gen 2 or Jackery Explorer 2000 v2 give you enough runway to skip a night of worrying about the forecast, and both support pass-through charging so you can top up from a generator or solar panels the moment power or sunlight is available.

Camping and off-grid trips. Weight starts to matter as much as capacity once you are carrying gear to a site. The Anker SOLIX C1000 Gen 2's 27.6-pound frame and fast recharge make it easier to top off from a car outlet or a portable solar panel between outings, without sacrificing a full night of CPAP runtime.

Air travel and hotel stays. None of the units above are FAA carry-on friendly at their full capacity — most airlines cap carry-on batteries around 100Wh (planes) — so treat these as car-camping, RV, and home-backup solutions rather than checked-bag or flight companions. For travel, plan on using wall power at your destination and reserving a power station for the drive or an unexpected outage.

Households already invested in EGO tools. If yard equipment already runs on EGO's 56V ARC platform, the PST3040 avoids buying a second battery ecosystem. The trade-off is that your CPAP runtime is only as good as how many packs you keep charged and rotated, so track your pack count against your typical nightly draw rather than assuming unlimited runtime.

How to Choose the Right Power Station for Your CPAP

Calculate your actual wattage draw

Check your CPAP's label or manual for its rated draw. Most modern machines pull 30-60W without a heated humidifier and 80-120W with one running. Multiply your nightly hours of use by your machine's draw to get watt-hours needed per night, then look for a battery with real capacity comfortably above that — LFP batteries should not be run down to zero regularly, so budget for using roughly 80% of the rated capacity.

Confirm pure sine wave output

Every model in this guide outputs a true (pure) sine wave, which is the safe standard for CPAP electronics and matches what your wall outlet delivers. Avoid modified sine wave inverters for medical equipment even if the price is tempting.

Prioritize noise if the unit sleeps in the room

A power station running a CPAP overnight is under sustained, not occasional, load — its cooling fan will be active for hours. Look for published noise ratings and favor units with LFP chemistry, which tends to run cooler and need less aggressive fan cooling than older lithium-ion designs.

Plan for outages that last more than one night

If backup power is for hurricane season or winter storms rather than routine camping, size up. A single night of margin becomes zero margin the moment an outage runs long or a recharge opportunity is missed.

Common Mistakes to Avoid

• Buying by "watt-hours" alone. Two units can share a capacity number but differ in real-world efficiency, fan noise, and how gracefully they handle a CPAP's variable pressure-driven draw.
• Ignoring the heated humidifier's power cost. It is common for buyers to size a power station around a bare CPAP figure, then find their actual setup, humidifier included, cuts runtime by 40-50%.
• Skipping a pass-through or UPS test. If you plan to keep the unit plugged into wall power as backup, verify it supports pass-through charging so it can power the CPAP directly during an outage without a manual swap.

For the full walkthrough of connecting and running a CPAP overnight, see our guide on how to run a CPAP machine on a portable power station, or for setups without any outlet nearby, how to power a CPAP without an outlet. If you are also backing up other medical devices, read how to use a power station for emergency medical equipment.

Frequently Asked Questions