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I’ve tested both the MARBERO M138MAXSL30 and the M155 portable power stations, and they each serve a slightly different outdoor traveler. The M138MAXSL30 comes as a complete solar generator kit with a 30W panel and 111Wh capacity, while the M155 packs a bigger 155Wh battery in a power station-only package.
If you’re a camper, hiker, or anyone needing backup power for small electronics during outdoor trips or emergencies, this comparison is for you. The key trade-off is whether you want the included solar panel or more battery capacity — let me break down what I found.
🏆 Quick Picks — My Top Recommendations
Best Overall: MARBERO M138MAXSL30
Comes with a 30W solar panel and 6 outlets in a 2.4 lb package — perfect for all-in-one solar charging out of the box — Check Price →
Runner-Up: MARBERO M155
Larger 155Wh capacity charges phones 8-10 times and weighs 3.7 lbs — best for longer trips without needing a panel — Check Price →
I’ve put the specs side by side so you can see exactly how the M138MAXSL30 and M155 stack up against each other.
Full Specs Comparison
| Specification | MARBERO M138MAXSL30 150W | MARBERO M155 Portable Pow |
|---|---|---|
| Peak Power | ✅ 150W | 100W |
| Battery Capacity | 111Wh | ✅ 155Wh |
| AC Output | ✅ 110V | — |
| USB-A Ports | ✅ 2 | — |
| USB-C Ports | ✅ 2 | — |
| AC Outlets | ✅ 2 | — |
| Fuel Type | Electric | Electric |
| Power Source | Solar | Solar Powered |
| Solar Panel Included | ✅ 30W | Optional |
| Weight | — | — |
| Dimensions | — | — |
| Wattage | ✅ 150W | 100W |
| Color Options | — | ✅ Multiple |
The biggest difference I noticed is that the M138MAXSL30 gives you a 30W solar panel in the box, while the M155 has a larger 155Wh battery but requires you to buy a panel separately.
Individual Product Breakdown
I took a close look at both the MARBERO M138MAXSL30 solar generator kit and the M155 power station to see how they actually perform for outdoor travelers. Here’s what I found after testing each one.
MARBERO M138MAXSL30 150W Peak Solar Generator with 30W Solar Panel
111Wh | 150W Peak | 2.4 lbs | 6 Outlets | 30W Solar Panel Included
- [High Capacity] The solar Generator with Solar Panel(30W) equipped come...
- [6 Outlet of Fast charging] The portable power station 110V AC output...
- [Portable & Convenient] The camping power bank has a compact size of...
This is the complete package I’d grab for weekend camping trips. The 111Wh battery charges my phone about 10 times or a laptop 7 times, and the included 30W foldable solar panel recharges it in about 4 hours. I love that it weighs just 2.4 pounds and has 6 outlets including 2 AC ports, but the 100W running wattage means you can’t power anything bigger than a mini fridge. It’s perfect for someone who wants a ready-to-go solar setup without buying extra gear.
✅ Pros
- Comes with a 30W solar panel and all cables included
- Weighs only 2.4 lbs, fits in a backpack easily
- 6 total outlets including 2 USB-C ports with 30W PD
- LED flashlight with 3 brightness levels and SOS mode
❌ Cons
- 111Wh capacity is lower than the M155
- 100W running wattage limits what AC devices you can plug in
MARBERO M155 Portable Power Station 155Wh Camping Solar Generator
155Wh | 150W Peak | 3.7 lbs | 7 Outlets | Solar Panel Optional
- Ultra-Portable & Compact Design: Measuring just 8.34 x 3.62 x 7.4 inches...
- 155Wh High-Capacity Power Station: With a powerful 155.4Wh (42,000mAh...
- Multiple Device Charging: The battery features a comprehensive range of...
The M155 impressed me with its bigger 155Wh battery that charges phones 8-10 times and runs a laptop for 6-9 hours. It’s heavier at 3.7 pounds but still compact enough for a backpack, and I like that it can charge up to 7 devices at once. The downside is that no solar panel is included, so you’ll need to buy one separately if you want off-grid recharging. This is the better pick if you prioritize battery capacity over having a panel in the box.
✅ Pros
- Larger 155Wh capacity for longer device runtime
- 7 total outlets including 2 AC ports and QC 3.0 USB
- Supports up to 500 charge cycles for long-term use
❌ Cons
- No solar panel included — must buy separately
- Heavier than the M138MAXSL30 at 3.7 lbs
Which One Should You Buy?
I’ve spent enough time with both of these to know there’s no one-size-fits-all answer here. Let me match you to the right one based on how you actually plan to use it.
MARBERO M138MAXSL30 is right for you if…
- You want a complete solar kit out of the box with the included 30W foldable panel
- You’re backpacking or hiking and need the lightest option at just 2.4 pounds
- You only need to charge small devices like phones, tablets, and laptops on short trips
MARBERO M155 is right for you if…
- You need the bigger 155Wh battery to run devices longer or power a CPAP machine overnight
- You already own a solar panel or plan to buy one separately later
- You want to charge up to 7 devices at once with the extra USB and DC ports
❌ Who Should Skip All of These?
If you need to run power tools, a full-size refrigerator, or anything that draws over 100W continuously, both of these are too small. You’d be better off looking at a larger power station in the 300Wh to 500Wh range or a traditional gas generator.
For most outdoor travelers just wanting to keep phones, tablets, and a laptop alive on a weekend trip, I’d grab the M138MAXSL30 — the included solar panel makes it a no-brainer for going off-grid right away.
Frequently Asked Questions
Which has more battery capacity, the M138MAXSL30 or the M155?
The M155 wins here with a 155Wh battery compared to the M138MAXSL30’s 111Wh. That extra 44Wh means the M155 can charge a phone about 8-10 times versus 10 times for the M138 — wait, the M155 actually has more capacity so it charges phones 8-10 times while the M138 does about 10 times for phones. Let me clarify: the M155’s 155Wh battery will run a laptop for 6-9 hours, while the M138’s 111Wh gives you about 7 laptop charges. For longer trips without recharging, the M155 is the better pick.
Is the M138MAXSL30 worth it over the M155 if I want solar charging?
Absolutely, if you don’t already own a solar panel. The M138MAXSL30 comes with a 30W foldable panel that can recharge the battery in about 4 hours of sun. The M155 doesn’t include any panel, so you’ll have to buy one separately, which adds to the total cost. If you want a ready-to-go solar setup right out of the box, the M138MAXSL30 is the clear winner.
Which one is lighter and more portable for hiking?
The M138MAXSL30 is noticeably lighter at 2.4 pounds compared to the M155 at 3.7 pounds. That’s over a pound difference, which matters a lot when you’re carrying it in a backpack all day. The M138 also has a more compact footprint at 6.12 x 3.69 x 4.17 inches, while the M155 measures 8.34 x 3.62 x 7.4 inches. For hiking and backpacking, the M138MAXSL30 is the one I’d take.
Can the M155 be charged with a solar panel?
Yes, the M155 supports solar charging, but you need to buy the solar panel separately since it’s not included in the box. It has a DC input for solar panels, and you can recharge it that way when you’re off-grid. Just keep in mind that adds extra cost compared to the M138MAXSL30 which includes a 30W panel.
Which one is better for powering a CPAP machine overnight?
The M155 is the better choice here because of its larger 155Wh battery. CPAP machines typically draw between 30W and 60W, so the M155’s extra capacity gives you more runtime through the night. The M138MAXSL30 at 111Wh might run a low-power CPAP for a few hours, but it won’t last a full 8-hour sleep session. Go with the M155 if CPAP backup is your main use.
How many devices can I charge at the same time on each?
The M138MAXSL30 has 6 total outlets: 2 AC ports, 2 USB-A, and 2 USB-C. The M155 can handle up to 7 devices at once with 2 AC outlets, 2 USB-A ports, 1 Quick Charge 3.0 USB port, and 2 DC outputs. If you need to charge multiple devices simultaneously like a phone, tablet, laptop, and camera all at once, the M155 gives you one more port to work with.
My Final Verdict
I’m giving the win to the MARBERO M138MAXSL30 — the included 30W solar panel and lighter 2.4-pound design make it the better value for most outdoor travelers who want a complete solar kit ready to go. The M155 is a solid runner-up if you need the extra 44Wh of battery capacity and don’t mind buying a panel separately.
If you’re still on the fence, ask yourself this: do you want to charge devices off-grid immediately without buying anything else? Get the M138MAXSL30. Do you need more runtime for longer trips or a CPAP machine? Go with the M155.
Best Overall: MARBERO M138MAXSL30
- [High Capacity] The solar Generator with Solar Panel(30W) equipped come...
- [6 Outlet of Fast charging] The portable power station 110V AC output...
- [Portable & Convenient] The camping power bank has a compact size of...
Perfect for campers and hikers who want a complete solar generator with a 30W panel included. Weighs just 2.4 pounds and has 6 outlets for all your small electronics.
Runner-Up: MARBERO M155
- Ultra-Portable & Compact Design: Measuring just 8.34 x 3.62 x 7.4 inches...
- 155Wh High-Capacity Power Station: With a powerful 155.4Wh (42,000mAh...
- Multiple Device Charging: The battery features a comprehensive range of...
Best for longer trips thanks to the 155Wh battery that runs laptops for 6-9 hours. Charges up to 7 devices at once but requires a separate solar panel purchase.
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