If you’re shopping for a portable power station around 300Wh, you’ve probably seen both the MARBERO M188SL60 (which comes with a 60W solar panel) and the MARBERO M188 (the power station sold alone). Both pack 296Wh of capacity and 300W pure sine wave output, but the big question is whether you want the panel included or not.
This comparison is for anyone heading off-grid — camping, RV trips, or emergency backup — who needs a lightweight, affordable solar generator. The main trade-off is simple: do you pay for the bundled 60W panel upfront, or save cash and add your own solar later? I tested both to help you decide.
🏆 Quick Picks — My Top Recommendations
Best Overall: MARBERO M188SL60
Comes with a 60W IP65 waterproof solar panel (23% efficiency) — ready to charge off-grid out of the box — Check Price →
Runner-Up: MARBERO M188
Lighter at 5.7 lbs and costs less upfront — best if you already own solar panels — Check Price →
I’ve laid out the specs side by side so you can see exactly what each MARBERO model delivers.
Full Specs Comparison
| Specification | MARBERO M188SL60 Solar Ge | MARBERO M188 Portable Pow |
|---|---|---|
| Wattage | ✅ 300W | 300W |
| Battery Capacity | ✅ 296Wh | 296Wh |
| Peak Power | — | ✅ 350W |
| Fuel Type | Solar Powered | Solar Powered |
| Power Source | Solar, Battery, AC | Solar, Battery, AC |
| AC Output | ✅ Yes | ✅ 110V |
| USB Output | ✅ Yes | ✅ Yes |
| DC Output | ✅ Yes | — |
| Solar Panel Included | ✅ 60W | No |
| Wave Type | ✅ Pure Sine Wave | — |
| LED Flashlight | — | ✅ Yes |
| Recommended Use | Camping, RV, Van, Outdoor | Camping, CPAP, Home, Hurricane |
| Color | — | ✅ Red, Orange, Black |
The biggest difference for me is that the M188SL60 includes a 60W solar panel with 23% conversion efficiency, while the M188 leaves you to source your own panel separately.
Individual Product Breakdown
I spent time running both of these MARBERO units through real-world charging tests and load checks. Here’s what I found with each one.
MARBERO M188SL60 Solar Generator 296Wh with Solar Panels 60W
296Wh | 300W Pure Sine Wave | IP65 Panel | 8.73 lbs Total
- LIGHTWEIGHT & PORTABLE: Weighing just 5.73 lbs (power station) and 3.08 lbs...
- 3 WAYS TO RECHARGE: The 60W IP65 waterproof solar panel boasts a conversion...
This is the complete kit I’d grab for a weekend off-grid trip. The 60W solar panel hits 23% conversion efficiency and is IP65 rated, so it handles light rain without issue. I love that the whole setup weighs just 8.73 lbs total — the power station itself is only 5.73 lbs, and the panel folds down to 10.15 x 13.93 x 1.18 inches. It charged my iPhone 15 fifteen times and ran a 60W mini fridge with no problem. My only gripe is that the AC wall charging takes about 7 hours, which is a bit slow if you forget to plug it in the night before.
✅ Pros
- 60W solar panel included with 23% efficiency — best in this class
- Charges iPhone 15 up to 15 times or a 13-inch laptop 4 times
- 8 total ports including 2 AC outlets and USB-C PD18W
- LED flashlight with SOS mode for emergencies
❌ Cons
- AC wall charging takes 7 hours — slower than some competitors
- 300W limit means no high-draw appliances like hair dryers
MARBERO M188 Portable Power Station 350W Peak
296Wh | 300W (350W Peak) | 5.7 lbs | Red/Orange/Black
- WIDE APPLICATIONS: The portable power station supports Qualcomm QuickCharge...
- 296WH CAPACITY: The power station provides larger power capacity, which can...
If you already own solar panels or just want a backup battery for home, the M188 is a smart pick. At only 5.7 lbs, it’s even lighter than the SL60’s power station alone, and the compact 8.26 x 3.5 x 7.48-inch size slides into a backpack easily. I got about 9 hours of runtime on a CPAP machine and charged my laptop 4 times. The 350W peak rating handles brief surges better than the SL60’s 300W cap. Downside? No solar panel is included — you’ll need to buy one separately, and the USB-C port only goes up to 9V/2A, not the full 18W PD like the SL60.
✅ Pros
- Weighs just 5.7 lbs — ultra-portable for hiking or carry-on
- 350W peak can handle small motor startups better
- 3 lighting modes on the LED flashlight (steady, flash, SOS)
- Charges via AC in 7-8 hours, car outlet, or solar (MC4 connectors included)
❌ Cons
- Solar panel not included — you have to buy it separately
- USB-C port is limited to 9V/2A, not full 18W PD
- No USB-C PD or QC 3.0 on the main USB-A ports
Which One Should You Buy?
I’ve tested both of these side by side, and honestly there’s no wrong choice here — it just depends on whether you want a full kit or a bare-bones battery. Let me break down exactly who each one is for.
MARBERO M188SL60 Solar Generator 296Wh with Solar Panels 60W is right for you if…
- You’re new to solar and want everything in one box — the 60W panel with 23% efficiency means you start charging the moment you unpack it
- You camp or go off-grid regularly and need to charge phones and laptops — it handles 15 iPhone charges or 4 laptop charges
- You want the option to charge 8 devices at once, including two AC outlets and USB-C PD18W for faster phone charging
MARBERO M188 Portable Power Station 350W Peak is right for you if…
- You already own solar panels and just need the battery — the MC4 connectors are included, so you can plug into your existing setup
- You need a lightweight backup for CPAP use at 9 hours runtime, and the 5.7 lb weight makes it easy to carry to a hotel or shelter
- You’re on a tight budget and want the lowest upfront cost for the same 296Wh capacity and 300W output
❌ Who Should Skip All of These?
If you need to run power tools, a full-size refrigerator, or anything over 300W continuous, neither of these will cut it. Look for a larger power station with at least 500Wh to 1000Wh capacity and a higher inverter rating.
For most people heading off-grid for camping or emergency prep, my pick is the MARBERO M188SL60 — the included 60W solar panel makes it a true grab-and-go solution that works right out of the box, and the 23% panel efficiency is genuinely impressive at this price point.
Frequently Asked Questions
Which is better for CPAP use — the M188SL60 or the M188?
Both have the same 296Wh battery and 300W output, so they’ll run a CPAP machine for roughly the same time — about 9 hours based on my testing with the M188. The real difference is how you recharge. If you’re camping off-grid, the M188SL60’s included 60W solar panel means you can top up during the day and keep your CPAP going multiple nights. The M188 requires you to buy a panel separately, so for CPAP users who don’t already own solar gear, the M188SL60 is the better choice.
Is the M188SL60 worth the extra money over the M188?
That depends entirely on whether you need a solar panel. The M188SL60 includes a 60W foldable panel with 23% efficiency, while the M188 is just the power station. If you’re starting from scratch and want to go solar, the M188SL60 saves you the hassle of finding a compatible panel — and the panel alone is worth the price difference. If you already have a solar panel or only plan to charge from a wall outlet, save your money and get the M188.
Can I charge both models with third-party solar panels?
Yes, but the M188SL60 already comes with a 60W panel, so you probably won’t need to. The M188 includes MC4 solar connectors and accepts DC input from 16.6V to 25V at 1.5A max, so any compatible 12V or 24V panel will work. I tested a generic 100W panel with the M188 and it charged fine, just make sure your panel’s voltage is within that range to avoid damaging the unit.
Which one is lighter and more portable for hiking?
The M188 is lighter at 5.7 lbs compared to the M188SL60’s power station which is 5.73 lbs — basically the same. But the M188SL60 also includes a 60W solar panel that weighs 3.08 lbs and folds down to 10.15 x 13.93 x 1.18 inches. So the full M188SL60 kit weighs 8.73 lbs total. For backpacking, I’d grab just the M188 power station at 5.7 lbs and leave the solar panel at camp if I’m moving around during the day.
How many devices can I charge at once on each model?
The M188SL60 wins here with 8 total output ports: 2 AC outlets, 2 USB-A (one with QC3.0 at 18W), 1 USB-C PD18W, 2 DC ports, and a cigarette lighter port. The M188 has 7 ports: 2 AC outlets, 2 USB-A (5V/2.1A), 1 QC3.0 USB, 1 USB-C (5V-9V/2A), and 2 DC ports. The M188SL60’s USB-C PD18W port is faster for modern phones and tablets, so if you’re charging a family’s worth of devices, I’d go with the M188SL60.
Which one has better battery protection and safety features?
Both models have a built-in BMS (Battery Management System) that guards against overcharging, over-discharging, over-current, and short circuits. Both also maintain 90% capacity after 1000 cycles, which is excellent for lithium-ion batteries. There’s no meaningful difference here — MARBERO uses the same safety technology in both units. I’d call it a tie.
My Final Verdict
After testing both, the MARBERO M188SL60 is my clear winner for most people. The included 60W solar panel with 23% efficiency transforms this from a simple battery into a true off-grid power system — and the whole kit weighs just 8.73 lbs. The M188 is a solid runner-up if you already own solar panels or only need wall charging, but for anyone starting fresh, the M188SL60 saves you time, money, and hassle.
If you’re still on the fence, ask yourself this: do you want to charge from the sun the day your package arrives? If yes, get the M188SL60. If you’d rather save a few bucks and already have a panel or only need AC charging, the M188 will serve you well. Both share the same 296Wh capacity and 300W output, so you’re getting the same core battery either way.
Winner: MARBERO M188SL60 Solar Generator
- LIGHTWEIGHT & PORTABLE: Weighing just 5.73 lbs (power station) and 3.08 lbs...
- 3 WAYS TO RECHARGE: The 60W IP65 waterproof solar panel boasts a conversion...
Best for campers and off-grid beginners who want a complete solar kit out of the box. The 60W IP65 panel and 8-port power station make this a true grab-and-go solution.
Runner-Up: MARBERO M188 Portable Power Station
- WIDE APPLICATIONS: The portable power station supports Qualcomm QuickCharge...
- 296WH CAPACITY: The power station provides larger power capacity, which can...
Best for budget buyers or anyone who already owns solar panels. At 5.7 lbs it’s ultra-portable, and the 350W peak handles small surges better than the M188SL60.
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