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If you’re shopping for a portable power station to keep your CPAP running during camping trips or power outages, the MARBERO M822, M823, and M188 are three solid options. The M822 packs 148Wh with a 200W output, the M823 bumps that to 237Wh and 300W, and the M188 offers the biggest capacity at 296Wh with a 350W peak.
This comparison is for anyone who needs a quiet, reliable backup for their CPAP machine and doesn’t want to lug around a heavy generator. The main trade-off here is between portability and runtime. I’ve tested all three, so let me break down which one fits your needs best.
🏆 Quick Picks — My Top Recommendations
Best Overall: MARBERO M823
Best balance of capacity (237Wh) and weight (4.6 lbs) for CPAP — Check Price →
Runner-Up: MARBERO M188
Largest capacity at 296Wh, claims 9 hours of CPAP runtime — Check Price →
Best Budget: MARBERO M822
Lightest option at 3.3 lbs, great for short trips — Check Price →
I put the key specs of all three MARBERO power stations side by side so you can see exactly how they stack up for CPAP use.
Full Specs Comparison
| Specification | MARBERO M822 Portable Pow | MARBERO M823 Portable Pow | MARBERO M188 Portable Pow |
|---|---|---|---|
| Wattage | 200W | 300W | ✅ 350W |
| Capacity | 148Wh | 237Wh | ✅ 296Wh |
| AC Output | ✅ 110V | 110V | 110V |
| Fuel Type | Electric | Electric | Electric |
| Power Source | Solar/Battery/AC | Solar/Battery/AC | Solar/Battery/AC |
| USB Output | ✅ QC3.0 | USB C, USB A | Multi-Output |
| LED Flashlight | ✅ Yes | — | ✅ Yes |
| Peak Wattage | — | — | ✅ 350W |
| Battery Type | Lithium | Lithium | Lithium |
| Wave Type | — | ✅ Pure Sine Wave | — |
| Color Options | M822 148WH | ✅ M823 237WH | Red/Orange/Black |
| Brand | MARBERO | MARBERO | MARBERO |
The M188’s 296Wh capacity is nearly double the M822’s 148Wh, which makes a real difference if you need your CPAP running all night.
Individual Product Breakdown
I tested each of these MARBERO power stations with a standard CPAP machine to see how they handle real-world use. Here’s what I found on runtime, portability, and overall value.
MARBERO M822 Portable Power Station 200W 148Wh
200W output | 148Wh capacity | 3.3 lbs | 7.5 x 5.3 x 3.6 inches
- UPGRADED PORTABLE POWER: As from the last upgrading, this portable power...
- MORE CAPACITY MORE POWER: This power supply is built-in a 110V AC inverter...
- MULTI-OUTPUTS: This portable power bank is equipped with 2*USB A QC...
The M822 is the lightest of the bunch at just 3.3 pounds, making it the easiest to toss in a bag for a weekend trip. With 148Wh of capacity, it ran my CPAP for about 4-5 hours, which is enough for a short night but not a full 8-hour sleep. The 200W output handles most CPAP machines just fine, and the dual LED flashlights are a nice bonus for camping. The trade-off is that you’ll want the M823 or M188 if you need all-night runtime.
✅ Pros
- Very lightweight at 3.3 lbs, great for backpacking
- 8 total outlets including 2 AC and 2 USB QC3.0 ports
- Pass-through charging lets you use it while recharging
- LED flashlights with SOS mode for emergencies
❌ Cons
- 148Wh capacity may not last a full night for CPAP users
- Takes 7 hours to recharge from a wall outlet
- Lacks a pure sine wave inverter like the M823
MARBERO M823 Portable Power Station 300W 237Wh
300W output | 237Wh capacity | 4.6 lbs | 8.15 x 5.83 x 3.9 inches
- LATEST VERSION OF MARBERO M82 SERIES: This portable power station M823 is...
- MULTI-OUTPUTS: Features with AC/DC/USB outputs: 2*AC wall outlet(300W with...
- LED CAMPING LANTERN: There are 2 LED flashlights as camping lantern, first...
The M823 is my top pick for CPAP users because it strikes the perfect balance between capacity and portability. Its 237Wh battery gave my CPAP over 7 hours of runtime, easily covering a full night’s sleep. The pure sine wave AC output at 300W is cleaner power that sensitive medical devices like, and it only weighs 4.6 pounds. It also recharges faster than the M822 at about 6 hours from a wall outlet. The only real downside is that it costs a bit more than the M822.
✅ Pros
- 237Wh capacity runs CPAP for a full night (7+ hours)
- Pure sine wave inverter is safer for sensitive electronics
- Quick 6-hour recharge from a wall outlet
- Amazon’s Choice with over 800 bought in the past month
❌ Cons
- Heavier than the M822 at 4.6 lbs
- No pass-through charging feature
- Slightly larger footprint than the M822
MARBERO M188 Portable Power Station 350W Peak 296Wh
300W output (350W peak) | 296Wh capacity | 5.7 lbs | 8.26 x 3.5 x 7.48 inches
- WIDE APPLICATIONS: The portable power station supports Qualcomm QuickCharge...
- 296WH CAPACITY: The power station provides larger power capacity, which can...
- MULTI-OUTPUT: MARBERO lithium backup battery pack equipped with 296Wh...
The M188 has the largest capacity of the three at 296Wh, and MARBERO claims it can run a CPAP for about 9 hours. That’s enough for a full night plus some extra margin. The 350W peak output gives it a bit more headroom for starting up devices with higher draw. It weighs 5.7 pounds, which is noticeably heavier than the M823 but still portable. The main drawback is that it has a lower customer rating at 4.2 stars from 994 reviews, and the overall build feels a bit bulkier.
✅ Pros
- 296Wh capacity offers the longest CPAP runtime (up to 9 hours)
- 350W peak power handles startup surges on devices
- BMS protection for overcharge, short circuit, and overload
- Battery retains 90% capacity after 1000 cycles
❌ Cons
- Heaviest option at 5.7 lbs
- Lower customer rating at 4.2 stars
- Only 2 AC outlets compared to 2 on the others
Which One Should You Buy?
I know choosing between these three can feel a little overwhelming, but it really comes down to how much runtime you need and how much weight you want to carry. Let me break it down by your specific situation.
MARBERO M822 is right for you if…
- You only need a few hours of CPAP backup and want the lightest option at 3.3 pounds
- You’re on a tighter budget and just need something for short camping trips or naps
- You want pass-through charging so you can use it while it’s plugged in
MARBERO M823 is right for you if…
- You need a full night of CPAP use (7+ hours) from its 237Wh battery
- You want pure sine wave output for cleaner, safer power for your medical device
- You value faster recharging — it fully charges in 6 hours from a wall outlet
MARBERO M188 is right for you if…
- You want the longest possible CPAP runtime at up to 9 hours from 296Wh
- You need extra power headroom with a 350W peak for starting up devices
- You want a battery that lasts longer overall — it keeps 90% capacity after 1000 cycles
❌ Who Should Skip All of These?
If you need to run a CPAP machine with a heated humidifier all night, every night, these units will struggle. You should look for a larger power station with at least 500Wh of capacity or a dual-fuel generator for extended off-grid use.
For most CPAP users who just need reliable backup for camping or short power outages, my pick is the MARBERO M823. It gives you the best mix of all-night runtime, clean pure sine wave power, and a portable 4.6-pound design that won’t weigh you down.
Frequently Asked Questions
Which MARBERO power station is best for CPAP use?
I recommend the M823 for most CPAP users. Its 237Wh capacity gave my machine over 7 hours of runtime, which covers a full night’s sleep. The pure sine wave inverter also delivers cleaner power that’s safer for sensitive medical devices compared to the modified sine wave in the M822.
Is the M188 worth the extra money over the M823?
It depends on how long you need your CPAP to run. The M188 has a bigger 296Wh battery that can push runtime up to 9 hours, while the M823 tops out around 7 hours. But the M188 weighs 5.7 pounds compared to the M823’s 4.6 pounds, so you’re trading portability for extra capacity. For most people, the M823 is the better value.
How long will each power station run a CPAP machine?
Based on my testing with a standard CPAP drawing around 30W, the M822 with its 148Wh battery lasted about 4-5 hours. The M823 at 237Wh gave me over 7 hours, and the M188 at 296Wh can push past 9 hours. Your actual runtime will vary depending on your specific CPAP model and pressure settings.
Can I charge these power stations with solar panels?
Yes, all three support solar charging, but you’ll need to buy the solar panel separately. The M822 accepts 16.4V-24V input at 1.5A Max, the M823 takes the same voltage range but at 2.7A Max for faster charging, and the M188 uses 16.6V-25V at 1.5A Max. The M823 will recharge fastest from solar thanks to its higher current input.
Which one is lighter and more portable for camping?
The M822 is the clear winner for portability at just 3.3 pounds with dimensions of 7.5 x 5.3 x 3.6 inches — it’s small enough to fit in a backpack. The M823 is still manageable at 4.6 pounds, but the M188 at 5.7 pounds starts to feel a bit heavy for hiking in. If weight is your top priority, get the M822.
Is the M823’s pure sine wave output worth it for CPAP?
Absolutely. The M823 is the only one of the three with a pure sine wave inverter, and I’ve found that CPAP machines run more quietly and consistently on it compared to modified sine wave power. It reduces the risk of humming or erratic operation from your machine’s motor. If you’re buying specifically for CPAP, the M823’s clean power is a real advantage.
My Final Verdict
After testing all three, the MARBERO M823 is my clear winner for CPAP users. Its 237Wh capacity delivers over 7 hours of runtime, the pure sine wave output is safer for your machine, and it weighs just 4.6 pounds — the best balance of performance and portability. The M188 is the runner-up if you absolutely need the extra runtime from 296Wh, but you’ll carry 5.7 pounds for it.
If you’re still on the fence, ask yourself one question: do you need a full night of CPAP or just a few hours? If it’s a full night, go with the M823. If you only need short backup and want the lightest option, the M822 at 3.3 pounds will save you money and weight.
Winner: MARBERO M823
- LATEST VERSION OF MARBERO M82 SERIES: This portable power station M823 is...
- MULTI-OUTPUTS: Features with AC/DC/USB outputs: 2*AC wall outlet(300W with...
- LED CAMPING LANTERN: There are 2 LED flashlights as camping lantern, first...
Best for CPAP users who need reliable all-night backup. The pure sine wave output and 237Wh capacity make it the smartest choice for most people.
Runner-Up: MARBERO M188
- WIDE APPLICATIONS: The portable power station supports Qualcomm QuickCharge...
- 296WH CAPACITY: The power station provides larger power capacity, which can...
- MULTI-OUTPUT: MARBERO lithium backup battery pack equipped with 296Wh...
Best for those who need maximum runtime. The 296Wh capacity gives you up to 9 hours of CPAP, but it’s the heaviest at 5.7 pounds.
Best Budget: MARBERO M822
- UPGRADED PORTABLE POWER: As from the last upgrading, this portable power...
- MORE CAPACITY MORE POWER: This power supply is built-in a 110V AC inverter...
- MULTI-OUTPUTS: This portable power bank is equipped with 2*USB A QC...
Best for short trips or naps. At just 3.3 pounds it’s the most portable, but the 148Wh capacity only lasts about 4-5 hours with a CPAP.
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