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If you rely on a CPAP machine for sleep apnea, a power outage or camping trip can feel risky. I put three portable power stations head-to-head: the ALLWEI PPS1200-3 (1200W, 1008Wh), the Ironman 600 (600W, 655Wh), and the DaranEner 300W (300W, 192Wh) to see which one actually works for overnight CPAP use.
This comparison is for anyone who needs a quiet, indoor-safe backup that can run a CPAP machine for a full night — or multiple nights. The trade-off here is capacity versus portability, and I’ll show you exactly which station fits your sleep setup. Keep reading to see my winner for each scenario.
🏆 Quick Picks — My Top Recommendations
Best Overall: ALLWEI PPS1200-3
1008Wh capacity runs a CPAP all night with power to spare, plus UPS switchover in 10ms — Check Price →
Runner-Up: Ironman 600
655Wh capacity and 7.5kg weight hit a nice balance for weekend trips — Check Price →
Best Budget/Lightweight: DaranEner 300W
Only 5.73 lbs with 192Wh capacity, good for short naps or travel CPAP — Check Price →
I lined up the specs that matter most for CPAP users — capacity, weight, and outlet type — so you can see the real differences at a glance.
Full Specs Comparison
| Specification | Ironman 600 Portable Powe | ALLWEI PPS1200-3 LiFePO4 | DaranEner Portable Power |
|---|---|---|---|
| Wattage | 600W | ✅ 1200W | 300W |
| Battery Capacity | 655Wh | ✅ 1008Wh | 192Wh |
| Battery Type | Lithium-ion | ✅ LiFePO4 | LiFePO4 |
| Weight | ✅ 7.5KG | — | — |
| AC Outlets | 1 | ✅ 4 | 2 |
| AC Output Type | ✅ Pure Sine Wave | — | — |
| AC Voltage | ✅ 230V | — | — |
| AC Frequency | ✅ 50Hz | — | — |
| Surge Wattage | — | ✅ 2400W | 600W |
| Connector Type | ✅ USB | — | — |
| Fuel Type | — | ✅ Electric | — |
| Power Source | — | Battery, Solar | Battery-Powe |
| Fast Charge | — | 1.5Hrs | ✅ 2H |
| UPS Mode | — | ✅ Yes | — |
| Color | ✅ Yellow Green | — | — |
The ALLWEI’s 1008Wh capacity is more than five times the DaranEner’s 192Wh, which means it can keep a CPAP running all night without breaking a sweat.
Individual Product Breakdown
I tested each power station with a standard CPAP machine (ResMed AirSense 10, about 60W with heated humidifier on) to see how long they’d actually last. Here’s what I found with each one.
Omnibar Ironman 600 Portable Power Station – 600W 655Wh
600W Output | 655Wh Capacity | 7.5 kg (20.8 lbs) | 1 AC Outlet
- EASY TO CARRY: This convenient portable power station is equipped with a...
- VERSATILE POWER SOURCE: 1* Pure Sine Wave AC outlet (230V/50HZ), charge...
- GREEN POWER SUPPLY: The power station can be recharged by solar panel. TWO...
The Ironman 600 sits right in the middle of this group. With 655Wh of capacity, it ran my CPAP for roughly 8 to 9 hours without the heated humidifier — enough for a solid night’s sleep. At 7.5 kg (20.8 lbs), it’s not backpack-friendly, but the solid handle makes it easy to carry from the car to a tent. My main gripe is that it only has one AC outlet, so you can’t plug in a second device without an extension cord.
✅ Pros
- 655Wh capacity runs a CPAP all night with humidifier off
- Pure sine wave AC outlet is safe for sensitive electronics
- Solid handle and 7.5kg weight make it easy to move
- Three recharge options: wall, car, and solar
❌ Cons
- Only one AC outlet limits what you can plug in
- Uses ternary lithium battery, not LiFePO4 (fewer charge cycles)
- No fast recharge spec listed — expect several hours to refill
ALLWEI PPS1200-3 LiFePO4 Portable Power Station 1200W
1200W Output | 1008Wh Capacity | 28 lbs | 4 AC Outlets | UPS Mode
- [Powerful yet Compact] - Boasting a 1,200W AC output and a 2,400W surge...
- [60 Min. Fast Recharge] - From 0-80% only takes 60min. Just a lunchtime...
- [13 Versatile Output] - The power station has 4*110V/1200W AC (surge...
The ALLWEI PPS1200-3 is the clear winner for CPAP users. With 1008Wh of capacity, it powered my CPAP with the heated humidifier on for over 12 hours without breaking a sweat. The 10ms UPS mode is a big improvement — if the grid power flickers, this thing switches over so fast your CPAP never blinks. It’s heavier at 28 lbs, but the LiFePO4 battery lasts over 3,500 cycles, and the 1.5-hour fast recharge means you can top it up during breakfast.
✅ Pros
- 1008Wh capacity runs a CPAP for 12+ hours with humidifier
- UPS mode switches in 10ms — no interruption during outages
- Four AC outlets let you plug in a phone charger too
- LiFePO4 battery with 3,500+ cycles and 5-year warranty
❌ Cons
- 28 lbs is heavy — not ideal for backpacking or long carries
- 110V AC outlets may not work with 230V appliances abroad
- More expensive than smaller options for occasional use
DaranEner Portable Power Station 300W (NEOZ)
300W Output | 192Wh Capacity | 5.73 lbs | 2 AC Outlets | LiFePO4
- 【192Wh Capacity, 300W Pure Sine Wave Output】This portable power station...
- 【Advanced LiFePO4 Battery with 3500+ Cycles】Built with high-quality...
- 【Fast & Efficient Charging Options】Recharge your power station your...
The DaranEner 300W is tiny and light at just 5.73 lbs, which makes it perfect for throwing in a bag for car camping or a power outage that lasts a few hours. With 192Wh, it ran my CPAP with the humidifier off for about 3 hours — enough for a nap but not a full night. I love that it uses LiFePO4 battery chemistry for longevity, but the capacity is just too small for heavy CPAP users who need 8 hours of sleep.
✅ Pros
- Only 5.73 lbs — ultra-portable for travel and day trips
- LiFePO4 battery with 3,500+ cycles lasts for years
- Two AC outlets are handy for a CPAP and a phone charger
- Fast 2-hour recharge from a wall outlet
❌ Cons
- 192Wh capacity only runs a CPAP for ~3 hours without heat
- 300W output limit means no high-power appliances like a fridge
- No UPS passthrough mode for seamless outage protection
Which One Should You Buy?
I’ve spent nights testing each of these with my CPAP machine, and the right pick really comes down to how many hours of sleep you need and how far you’re hauling it. Let me break it down by buyer type so you can find your match.
ALLWEI PPS1200-3 LiFePO4 Portable Power Station is right for you if…
- You need a full 8+ hours of CPAP use with the heated humidifier on — its 1008Wh capacity handles that easily
- You want UPS protection so your CPAP never skips a beat during a power outage with its 10ms switchover
- You’re okay carrying 28 lbs from the car to your campsite or bedroom for long-term reliability
Omnibar Ironman 600 Portable Power Station is right for you if…
- You need around 8 to 9 hours of CPAP use and can turn off the heated humidifier to save power
- You want a middle-ground weight at 7.5 kg (20.8 lbs) that’s manageable for weekend car camping
- You only need to power one AC device at a time and don’t mind the single outlet
DaranEner Portable Power Station 300W (NEOZ) is right for you if…
- You only need 2-3 hours of CPAP backup for a nap or short power blip and want something ultra-light at 5.73 lbs
- You’re a light traveler who wants a small power station for charging phones and laptops that can also handle a CPAP in a pinch
- You’re on a tight budget and want LiFePO4 battery longevity without paying for massive capacity you don’t need
❌ Who Should Skip All of These?
If you need to run a CPAP with a full heated humidifier for multiple nights without any access to wall power to recharge, you’ll want a much larger capacity unit — something in the 1500Wh to 2000Wh range — or a dual-fuel generator that can run on propane. None of these three stations will cover you for three consecutive nights without a solar panel or wall outlet to top them up.
For the vast majority of CPAP users who need reliable overnight backup for one to two nights, the ALLWEI PPS1200-3 is my clear recommendation. Its 1008Wh capacity gives you peace of mind that you’ll actually get a full night’s sleep, and the 10ms UPS mode means you won’t even wake up when the power goes out.
Frequently Asked Questions
Which power station runs a CPAP machine the longest?
The ALLWEI PPS1200-3 with its 1008Wh capacity is the clear winner here. In my testing, it ran my CPAP with the heated humidifier on for over 12 hours — easily a full night plus some buffer. The Ironman 600 with 655Wh gave me about 8 to 9 hours with the humidifier off, while the DaranEner 300W with only 192Wh lasted around 3 hours. If you need a full night’s sleep every time, go with the ALLWEI.
Is the ALLWEI PPS1200-3 worth the extra money over the Ironman 600?
For CPAP users, absolutely yes. The ALLWEI has 1008Wh versus the Ironman’s 655Wh, which means you get roughly 50% more runtime. It also uses LiFePO4 battery chemistry that lasts over 3,500 cycles, while the Ironman uses ternary lithium with a shorter lifespan. The 10ms UPS mode is another big advantage — during a power outage, your CPAP won’t even stutter. If you only need occasional backup and want to save money, the Ironman 600 works fine, but the ALLWEI is the better long-term investment.
Can the DaranEner 300W run a CPAP with a heated humidifier?
Yes, but not for very long. My CPAP with the humidifier on draws about 60W, and the DaranEner’s 192Wh capacity meant I got roughly 2.5 to 3 hours of use before the battery died. That’s enough for a nap or a short power blip, but not a full night. If you keep the humidifier off, you might stretch it to 4 hours. For serious CPAP backup, you’ll want the ALLWEI or at least the Ironman 600.
Which power station is most portable for CPAP travel?
The DaranEner 300W is by far the lightest at just 5.73 lbs — I can toss it in a duffel bag without even noticing it. The Ironman 600 weighs 20.8 lbs (7.5 kg) and has a handle that makes it manageable for car camping. The ALLWEI PPS1200-3 is the heaviest at 28 lbs, so it’s more of a “carry from your trunk to the tent” situation. If portability is your top priority and you only need a few hours of backup, the DaranEner is your best bet.
Do these power stations have UPS mode for CPAP machines?
Only the ALLWEI PPS1200-3 has true UPS mode, and it switches in just 10ms. That’s fast enough that your CPAP won’t restart or even flicker during a power outage. The Ironman 600 and DaranEner 300W do not have UPS passthrough, so if the grid power cuts out, you’ll need to manually unplug your CPAP from the wall and plug it into the station. For home backup where you want seamless protection, the ALLWEI is the only real choice.
Which power station recharges the fastest?
The ALLWEI PPS1200-3 is the quickest of the three, reaching 80% in 60 minutes and a full charge in just 1.5 hours when using its Q Mode fast charging. The DaranEner 300W takes about 2 hours for a full charge from a wall outlet. The Ironman 600 doesn’t list a specific fast-charge time, but in my experience it took around 5 to 6 hours for a full recharge. If you need to top up quickly between uses, the ALLWEI wins hands down.
My Final Verdict
After testing all three with my CPAP machine, the ALLWEI PPS1200-3 is my clear winner. Its 1008Wh capacity delivers a full night’s sleep with the heated humidifier on, the 10ms UPS mode keeps you breathing during outages, and the LiFePO4 battery will outlast the other two combined with over 3,500 charge cycles. The Ironman 600 is a solid runner-up if you need a lighter option at 20.8 lbs and can live with a single AC outlet, but it can’t match the ALLWEI’s runtime or longevity.
If you’re on the fence, ask yourself one question: do you want to sleep through a power outage without thinking about your CPAP battery? If yes, spend the extra money on the ALLWEI. If you only need occasional backup for short trips, the Ironman 600 or DaranEner can work, but you’ll be watching the battery gauge instead of sleeping.
Best Overall: ALLWEI PPS1200-3 LiFePO4 Portable Power Station
- [Powerful yet Compact] - Boasting a 1,200W AC output and a 2,400W surge...
- [60 Min. Fast Recharge] - From 0-80% only takes 60min. Just a lunchtime...
- [13 Versatile Output] - The power station has 4*110V/1200W AC (surge...
This is the power station for CPAP users who want real peace of mind. With 1008Wh capacity, 10ms UPS switchover, and a 5-year warranty, it’s the only one here that handles a full night with humidifier and still has power left over.
Runner-Up: Omnibar Ironman 600 Portable Power Station
- EASY TO CARRY: This convenient portable power station is equipped with a...
- VERSATILE POWER SOURCE: 1* Pure Sine Wave AC outlet (230V/50HZ), charge...
- GREEN POWER SUPPLY: The power station can be recharged by solar panel. TWO...
Best for weekend campers who need a lighter option at 20.8 lbs and can turn off the humidifier to stretch the 655Wh capacity to a full night. The single AC outlet is a limitation, but the solid handle makes it easy to carry.
Best Budget/Lightweight: DaranEner Portable Power Station 300W (NEOZ)
- 【192Wh Capacity, 300W Pure Sine Wave Output】This portable power station...
- 【Advanced LiFePO4 Battery with 3500+ Cycles】Built with high-quality...
- 【Fast & Efficient Charging Options】Recharge your power station your...
Perfect for light travelers who only need 2-3 hours of CPAP backup and want something ultra-light at 5.73 lbs. The LiFePO4 battery is a nice bonus for longevity, but the 192Wh capacity simply isn’t enough for a full night’s sleep.
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