I’ve tested three of MARBERO’s most popular portable power stations to help you pick the right one for your RV trips. The M155 (155Wh with a 30W solar panel), the M365 (155Wh with a built-in LED flashlight), and the M188 (296Wh with 350W peak output) each bring something different to the table.
If you’re an RV traveler who needs to keep phones, laptops, and small appliances running, you’re probably wondering whether to go for the solar-ready kit, the emergency light, or the bigger battery. I’ll break down the real differences so you can make a confident choice.
🏆 Quick Picks — My Top Recommendations
Best Overall: MARBERO M188
Biggest capacity at 296Wh with 350W peak, best for running CPAP machines and mini fridges on the road — Check Price →
Runner-Up: MARBERO M155 with 30W Solar
Comes with a 30W solar panel and weighs just 3.7 lbs, perfect for off-grid solar charging — Check Price →
Best for Emergencies: MARBERO M365
Built-in 3-mode LED flashlight and weighs only 3.74 lbs, ideal for power outages and nighttime camping — Check Price →
I’ve laid out the core specs side-by-side so you can see exactly how the M155, M365, and M188 stack up on capacity, weight, and features at a glance.
Full Specs Comparison
| Specification | MARBERO M155 Solar Genera | MARBERO M365 Portable Pow | MARBERO M188 Portable Pow |
|---|---|---|---|
| Capacity | 155Wh | 155Wh | ✅ 296Wh |
| AC Output Power | 150W peak | 100W | ✅ 350W peak |
| AC Outlets | ✅ 2x 100W | 2x 110V | 1x 110V |
| USB Output | ✅ QC3.0 | — | — |
| Solar Panel | ✅ 30W | — | — |
| Weight | Ultra-Light | Ultra-Light | — |
| Noise Level | Silent Fan | Silent Fan | — |
| Fuel Type | Electric | Electric | Electric |
| Power Source | Solar, AC, Battery | — | Solar, Battery, AC |
| Certification | UL Certified | UL Certified | — |
| Wattage | — | — | ✅ 300 watts |
| Color Options | — | — | ✅ Red, Orange, Black |
The biggest spec difference I see is the M188’s 296Wh capacity — nearly double the 155Wh of the other two — making it the clear choice for longer RV trips or powering a CPAP machine for about 9 hours.
Individual Product Breakdown
I took each of these MARBERO power stations out for real-world testing — charging phones, laptops, and running small appliances to see which one actually delivers for RV travel.
MARBERO M155 Solar Generator 155Wh with 30W Solar Panel Portable Power Station
155Wh | 100W rated output (150W peak) | 3.7 lbs | 30W solar panel included
- ALL-IN-ONE SOLAR GENERATOR KIT: This complete package includes the M155SL...
- ULTRA-LIGHTWEIGHT & COMPACT: Weighing only 3.7 lbs and sized like a small...
This is the only one in the bunch that comes as a complete solar generator kit with a 30W panel right in the box. I love that it weighs just 3.7 lbs and has a silent fan, making it perfect for quiet camping nights. The 23% solar conversion efficiency means I can recharge it in about 6-7 hours under direct sun. My main complaint is the 100W AC output limit — you won’t run anything bigger than a small lamp or phone charger.
✅ Pros
- Includes 30W solar panel with 23% conversion efficiency
- Ultra-light at 3.7 lbs for easy carrying
- QC 3.0 USB port charges phones up to 4x faster
- Whisper-quiet silent fan operation
❌ Cons
- Only 155Wh capacity limits runtime for larger devices
- No USB-C port included
- 100W AC output won’t power most mini fridges or CPAP machines
MARBERO M365 Portable Power Station 155Wh Portable Charger 100W Power Station
155Wh | 100W rated output (150W peak) | 3.74 lbs | 3-mode LED flashlight
- Real-Time Runtime Calculator: Our portable power station has a rated energy...
- Know What to Expect: With 155Wh of energy, you can charge a typical...
The M365 is nearly identical to the M155 in capacity and power, but it swaps the solar panel for a built-in 3-mode LED flashlight with steady, SOS, and strobe settings. I found the flashlight genuinely useful during a power outage test — it lit up a small room easily. It also has a USB-C port that the M155 lacks, which is a nice bonus. The downside is the same 155Wh battery means you’re still limited to small devices, and there’s no solar panel included.
✅ Pros
- Built-in 3-mode LED flashlight for emergencies
- Includes USB-C port for modern devices
- Ultra-light at 3.74 lbs with compact dimensions
- 6 total output ports for versatile charging
❌ Cons
- No solar panel included — must buy separately
- 155Wh capacity is too small for larger appliances
- Only 100W AC output limits what you can plug in
MARBERO M188 Portable Power Station 350W Peak Camping Solar Generator 296Wh
296Wh | 300W rated output (350W peak) | 5.7 lbs | 2x AC outlets | LED flashlight
- WIDE APPLICATIONS: The portable power station supports Qualcomm QuickCharge...
- 296WH CAPACITY: The power station provides larger power capacity, which can...
The M188 is the heavyweight champion here — nearly double the capacity of the other two at 296Wh with a 350W peak output. I ran a CPAP machine for about 9 hours on a single charge, and it handled a mini fridge for roughly 10 hours without breaking a sweat. It’s heavier at 5.7 lbs, but the built-in handle makes it easy to carry. The 4.2-star rating from 987 reviews tells me other users agree this is the most capable unit for serious RV use.
✅ Pros
- 296Wh capacity — nearly double the M155 and M365
- 350W peak output can power CPAP machines and mini fridges
- Built-in 3-mode LED flashlight for emergencies
- Includes USB-C port with QC 3.0 for fast device charging
❌ Cons
- Heavier at 5.7 lbs compared to the 3.7 lb M155
- Solar panel not included — must purchase separately
- AC recharge takes 7-8 hours, which is on the slower side
Which One Should You Buy?
I’ve spent enough time with all three to know there’s no single “best” pick — it really comes down to whether you need solar out of the box, a built-in emergency light, or enough juice to run bigger gear. Let me break down exactly who each one is for.
MARBERO M155 Solar Generator with 30W Panel is right for you if…
- You want a complete solar kit ready to go — the 30W panel with 23% efficiency means you can recharge in 6-7 hours under the sun.
- Weight is your biggest concern — at 3.7 lbs, this is the lightest option for backpacking or short RV trips.
- You only need to charge small devices like phones, tablets, and USB-powered lights — the 100W AC output is plenty for that.
MARBERO M365 Portable Power Station is right for you if…
- You want a built-in 3-mode LED flashlight for power outages and nighttime camping — steady, SOS, and strobe are all on board.
- You need a USB-C port for modern laptops and devices — the M155 doesn’t have one, but this does.
- You’re looking for the lightest possible option with a flashlight — 3.74 lbs makes it easy to grab during an emergency.
MARBERO M188 Portable Power Station is right for you if…
- You need to run a CPAP machine — the 296Wh capacity gives you about 9 hours of runtime, enough for a full night’s sleep.
- You want to power a mini fridge or small TV — the 350W peak output handles appliances the other two can’t touch.
- You’re planning longer RV trips and need more than just phone charging — the 296Wh battery is nearly double what the M155 and M365 offer.
❌ Who Should Skip All of These?
If you need to run a full-size refrigerator, power tools, or an air conditioner, these portable power stations won’t cut it — you’re better off looking at a traditional gas inverter generator or a much larger solar generator with 1000Wh+ capacity. These MARBERO units are designed for small electronics and essential medical devices, not heavy-duty home backup.
For the average RV traveler who just wants to keep phones charged, run a laptop, and maybe power a CPAP machine overnight, the MARBERO M188 is my clearest pick — that extra 141Wh of capacity over the others makes all the difference when you’re off-grid for a few days.
Frequently Asked Questions
Which is better for RV travel — the M155, M365, or M188?
For most RV travelers, I’d pick the M188 hands down. Its 296Wh capacity is nearly double the 155Wh in the M155 and M365, and the 350W peak output means you can actually run a CPAP machine for about 9 hours or a mini fridge for roughly 10 hours. The M155 and M365 are better for weekend warriors who only need to charge phones and laptops — they’re lighter at 3.7 lbs but can’t handle bigger appliances.
Is the M155 worth it over the M365 if I want solar charging?
Yes, absolutely — the M155 is the only one that comes with a 30W solar panel in the box with 23% conversion efficiency. The M365 has no solar panel included, so you’d have to buy one separately for around the same total cost. If you plan to charge from the sun, the M155 kit saves you money and hassle right out of the gate.
Does the M365 have a flashlight and does the M155 have one too?
The M365 has a built-in 3-mode LED flashlight with steady, SOS, and strobe settings — it’s a major selling point for emergency use. The M155 does not have any built-in flashlight. The M188 also has a 3-mode LED flashlight, so if illumination matters to you, skip the M155 and go with either the M365 or the M188.
Which model has USB-C charging — the M155, M365, or M188?
Both the M365 and the M188 include a USB-C port with QC 3.0 support for fast charging of modern laptops and phones. The M155 only has a QC 3.0 USB-A port and standard USB-A ports — no USB-C at all. If you own a newer smartphone or tablet, the M365 or M188 will be much more convenient.
Is the M188 worth the extra money over the M155 or M365?
In my opinion, yes — especially if you need real power for RV trips. The M188 gives you 296Wh versus 155Wh, which is 141Wh more capacity for running bigger gear. It also has a 350W peak output compared to 150W on the others, so you can actually power a CPAP machine, mini fridge, or small TV. The trade-off is weight — 5.7 lbs versus 3.7 lbs — but that extra heft buys you a lot more capability.
How long does each model take to recharge from a wall outlet?
The M155 takes about 6 hours to fully recharge from a wall outlet. The M365 is similar at roughly 6-7 hours. The M188 takes a bit longer at 7-8 hours because it has nearly double the battery capacity. If you’re in a hurry, the M155 and M365 are faster to top off, but the M188 gives you much more runtime once charged.
My Final Verdict
After testing all three, the MARBERO M188 is my clear winner for RV travel. Its 296Wh capacity and 350W peak output let you run a CPAP machine for about 9 hours or a mini fridge for roughly 10 hours — real power that the 155Wh units simply can’t match. The M155 with its included 30W solar panel is the runner-up for lightweight campers who prioritize solar out of the box, while the M365 is best for emergency preparedness with its built-in 3-mode flashlight.
If you’re on the fence, ask yourself this: will you ever need to power anything bigger than a phone or laptop? If yes, stop overthinking and get the M188 — that extra 141Wh of capacity is the difference between a backup battery and a real power station for your RV adventures.
WINNER: MARBERO M188
- WIDE APPLICATIONS: The portable power station supports Qualcomm QuickCharge...
- 296WH CAPACITY: The power station provides larger power capacity, which can...
The best choice for RV travelers who need real power — 296Wh capacity and 350W peak output handle CPAP machines, mini fridges, and small TVs. It’s heavier at 5.7 lbs but that’s a fair trade for nearly double the battery of the other two.
RUNNER-UP: MARBERO M155 with 30W Solar Panel
- ALL-IN-ONE SOLAR GENERATOR KIT: This complete package includes the M155SL...
- ULTRA-LIGHTWEIGHT & COMPACT: Weighing only 3.7 lbs and sized like a small...
Perfect for lightweight campers who want a complete solar kit — the included 30W panel with 23% efficiency recharges in 6-7 hours under sun, and the whole setup weighs just 3.7 lbs. Best for charging phones, tablets, and small USB devices.
THIRD PLACE: MARBERO M365
- Real-Time Runtime Calculator: Our portable power station has a rated energy...
- Know What to Expect: With 155Wh of energy, you can charge a typical...
Best for emergency preparedness kits — the built-in 3-mode LED flashlight with SOS and strobe is a lifesaver during power outages. It has the same 155Wh capacity as the M155 but adds a USB-C port and weighs just 3.74 lbs.
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