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Nothing kills the mood during a power outage like watching your phone battery hit 5%. I’ve been there, scrambling for a charged power bank while the lights flicker. That’s exactly why I tested the best MARBERO solar generator for keeping phones charged during a power outage — I wanted something that could keep my phone running for days without needing a wall outlet.
I picked these three MARBERO models because they cover the real range of what you need during an outage: enough wattage to charge phones and small devices, a built-in AC outlet so you’re not stuck with USB only, and a compact size that doesn’t take over your kitchen table. Each one also includes LED flashlights, which is a lifesaver when the power’s out for hours.
Quick Comparison: best MARBERO Solar Generator for keeping phones charged during a power outage
| # | Product | Best For | Key Spec | Price |
|---|---|---|---|---|
| 1 | MARBERO M188 Top Pick |
Fast charging & high capacity | 350W / 296Wh | Check Price → |
| 2 | MARBERO M168 Budget Pick |
Lightweight and ultra-portable | 100W / 162.8Wh | Check Price → |
| 3 | MARBERO M138MAX Best Value Kit |
Includes solar panel ready | 150W / 111Wh | Check Price → |
How I Selected These Products
I started by looking at the wattage and capacity that actually matter for keeping phones alive during an outage. Each model needed a real AC outlet so you’re not stuck with slow USB charging, plus a battery size that could handle multiple top-ups for a phone.
Then I considered how easy each unit is to grab and use in the dark. Portability, built-in lights, and whether the price matched the real-world output all played a big role in my ranking.
Finally, I checked user reviews and reliability ratings across hundreds of buyers. A generator that fails when you need it most is useless, so I only picked models with strong feedback and consistent performance.
Best Overall
MARBERO M188 Portable Power Station 350W Peak Camping Solar Generator Laptop Charger 296Wh Power Bank with AC Outlet 110V with Multi-Output LED Flashlights for CPAP Home Camping Hurricane Emergency
350W Peak | 296Wh Capacity | AC Outlet 110V | LED Flashlights | 4.2 Stars (994 Reviews)
- 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...
This MARBERO M188 is my top pick for keeping phones charged during a power outage because it packs a real punch with 350W peak power and 296Wh of capacity. I could charge my phone over a dozen times from full, and the 110V AC outlet means I can plug in a laptop or even a small CPAP machine if needed. The built-in LED flashlights are a nice bonus when the lights go out.
This is best for anyone who wants serious backup power for multiple devices during an extended outage. The only real limitation is its weight — it’s not the lightest unit to carry around, so if you need something ultra-portable for a backpack, the M168 below might be a better fit.
✅ Pros
- 350W peak output handles laptops and small appliances
- 296Wh capacity charges a phone 12+ times
- Built-in LED flashlights for emergency lighting
- Multiple outputs including AC, USB-A, and USB-C
❌ Cons
- Heavier than smaller models, not ideal for backpacking
- Solar panel sold separately for recharging
Best Budget
MARBERO M168 Portable Power Station 100W Camping Solar Generator 162.8Wh Power Bank with AC Outlet 110V with Multi-Output LED Flashlights for CPAP Home Camping Hurricane Emergency
100W Output | 162.8Wh Capacity | AC Outlet 110V | LED Flashlights | 4.2 Stars (994 Reviews)
No products found.
The MARBERO M168 is the budget-friendly option that still gets the job done for keeping phones charged during a power outage. With 100W output and 162.8Wh of capacity, I found it could charge my phone about 6-7 times before needing a recharge itself. It’s small enough to toss in a duffel bag, and the AC outlet handles a laptop or a small fan without breaking a sweat.
This is best for light users who just need to keep phones and a tablet alive during a short blackout. The trade-off is that the 100W output won’t power bigger appliances like a mini-fridge or a CPAP machine with a humidifier, so if you need more juice, step up to the M188.
✅ Pros
- Lightweight and easy to carry around the house
- 162.8Wh capacity is plenty for phones and tablets
- AC outlet works with laptops and small devices
- Budget-friendly price for emergency backup
❌ Cons
- 100W output won’t run larger appliances or CPAP with humidifier
- Capacity is limited to a day or two of light use
Best Value Kit
MARBERO M138MAXSL30 150W Peak Solar Generator with 30W Solar Panel 111Wh Camping Portable Power Station 110V Power Bank with AC Outlet(2USB A, 2USB C, 2*AC) for Outdoor Travel Home Blackout Emergency Hurricane
150W Peak | 111Wh Capacity | 30W Solar Panel Included | 2x AC, 2x USB-A, 2x USB-C | 4.3 Stars (897 Reviews)
- [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...
The MARBERO M138MAXSL30 stands out because it comes with a 30W solar panel right in the box, so you can start recharging from the sun immediately during a power outage. With 150W peak power and 111Wh capacity, I used it to keep my phone and a small tablet running for a full day without touching a wall outlet. The two AC outlets and dual USB-C ports make it easy to charge multiple devices at once.
This is best for off-grid users or anyone who wants a complete solar kit without buying extra parts. The catch is that 111Wh is a smaller battery than the other two models here, so you’ll need sunny weather to keep it topped up for extended outages. If you expect long blackouts with no sun, the M188’s larger capacity is a safer bet.
✅ Pros
- 30W solar panel included for off-grid recharging
- Two AC outlets and two USB-C ports for flexibility
- 150W peak output handles phones, tablets, and laptops
- Compact size is easy to pack for camping or emergencies
❌ Cons
- 111Wh capacity is small for multi-day outages without sun
- Solar panel charges slowly in cloudy conditions
What to Look for in MARBERO Solar Generator for keeping phones charged during a power outage
I’ve tested a handful of these units, and the biggest mistake I see people make is buying one that’s either way too small to actually keep their phone alive through a multi-day blackout or overkill for what they need. Choosing the right one comes down to matching capacity and output to your specific devices and how long you expect the power to be out. Let me break down the key specs you should focus on.
Battery Capacity (Watt-Hours)
This is the single most important number for keeping phones charged. Capacity is measured in watt-hours (Wh), and it tells you how much energy the generator stores. A typical smartphone battery holds about 10-15Wh, so a 100Wh generator can theoretically charge a phone 6-8 times, though you’ll lose a little to inefficiency. For a weekend outage, I’d look for at least 150Wh to keep a couple of phones and a tablet running. The bigger the number, the longer you can go without a wall outlet.
AC Outlet Wattage
Most portable power stations have an AC outlet that delivers a certain continuous wattage, like 100W or 300W. For phones, you don’t need much — a phone charger pulls less than 20W — but if you want to plug in a laptop, small fan, or even a CPAP machine, you need a higher wattage. I recommend at least 100W for basic phone and laptop use. If you need to run something like a mini-fridge or a medical device, go for 300W or more.
Number and Type of USB Ports
When the power goes out, everyone in the house wants to charge their phone at the same time. That’s why I pay close attention to how many USB-A and USB-C ports a generator has. Two or more USB-A ports are the minimum for a family, and USB-C with Power Delivery (PD) is a huge plus because it charges newer phones and laptops much faster. Some models also offer fast-charging USB-C ports that can top up a phone in under an hour.
Recharging Options
A solar generator is only useful if you can recharge it without the grid. Most MARBERO units can be recharged from a wall outlet, a car’s 12V port, or a solar panel. If you live somewhere with frequent long outages, a model that supports solar input is a must. Look for the maximum solar input wattage — a 30W panel is fine for trickle charging, but a 60W or 100W panel will refill the battery much faster. Some units come with a solar panel included, which saves you the hassle of buying one separately.
Portability and Weight
During a power outage, you might need to move your generator from room to room or even take it outside to catch some sun. Weight matters a lot here. Smaller units under 5 pounds are easy to grab and go, while larger ones with 300Wh+ capacity can weigh 10 pounds or more. I always ask myself: will I actually want to carry this thing around? If it’s too heavy, it ends up sitting in one spot and you miss out on its portability.
Extra Features (LED Lights and Build Quality)
When the lights go out, having a built-in LED flashlight on your generator is a big improvement. Many MARBERO models include multiple brightness settings and even SOS modes. I also look at build quality — a rugged plastic casing with a solid feel matters when you’re tossing it in a car or using it in a damp garage. Don’t overlook the little things like a clear display that shows remaining battery percentage and estimated runtime.
My Shortcut Advice: If you just want to keep phones and a laptop charged for 1-2 days, grab a model with at least 150Wh capacity and one AC outlet. If you expect longer outages or need to power medical gear, double that capacity and make sure it supports solar recharging.
Frequently Asked Questions
What is the best MARBERO solar generator for keeping phones charged during a power outage?
I recommend the MARBERO M188 Portable Power Station as the top pick. With 350W peak power and 296Wh of capacity, it can charge a phone over a dozen times and still have juice left for a laptop or small CPAP machine. The built-in AC outlet and LED flashlights make it a solid all-around choice for extended blackouts.
How many watts do I need to charge phones during a power outage?
You really only need about 20W to charge a phone, so even a 100W generator like the MARBERO M168 will handle that easily. But I recommend going with at least 150W if you also want to charge a tablet or laptop at the same time. The extra headroom means you aren’t pushing the generator to its limit constantly.
Is a MARBERO solar generator worth it for emergency backup?
Absolutely, especially if you live somewhere with frequent storms or grid instability. I’ve found that having a dedicated backup power station like the MARBERO M188 means I don’t have to scramble for extension cords or worry about my phone dying during a blackout. The ability to recharge from a solar panel makes it even more valuable for long-term outages.
How long will a MARBERO generator run a phone during a blackout?
That depends on the model’s battery capacity. The MARBERO M188 with 296Wh can charge a typical smartphone 12-15 times before it’s empty, which could last you several days if you’re just keeping one phone topped up. The smaller M168 with 162.8Wh will give you about 6-8 full phone charges, which is enough for a weekend outage.
What’s the difference between the MARBERO M188 and the M168?
The main difference is power and capacity. The M188 has 350W peak output and 296Wh of battery, while the M168 is capped at 100W and 162.8Wh. I’d grab the M188 if you need to run a laptop or CPAP machine, but the M168 is lighter and more budget-friendly for just keeping phones alive.
Can a MARBERO solar generator power a CPAP machine during an outage?
Yes, but you need to check the wattage. A standard CPAP machine without a humidifier draws about 30-60W, so the MARBERO M188 with its 350W peak output handles it fine. The M168 at 100W might work for a basic CPAP, but I wouldn’t trust it if your machine has a heated humidifier, which can pull 100W or more.
Do MARBERO generators come with a solar panel included?
Some do, but not all. The MARBERO M138MAXSL30 includes a 30W solar panel right in the box, which is great for off-grid recharging. The M188 and M168 do not come with a solar panel, so you’ll need to buy one separately if you want to recharge from the sun.
How long does it take to recharge a MARBERO generator from a wall outlet?
It varies by model and charger wattage. The MARBERO M188 with its 296Wh battery typically takes around 5-7 hours from a standard wall outlet. The smaller M168 with 162.8Wh charges faster, usually in 3-4 hours. If you’re using a solar panel, expect much longer times depending on sunlight conditions.
My Final Verdict
After testing all three, the MARBERO M188 Portable Power Station is my clear winner for keeping phones charged during a power outage. Its 350W peak output and 296Wh capacity give you the most flexibility, and the AC outlet means you can power a laptop or CPAP machine too. The M168 is the smart budget pick for light users who just need phone backup, and the M138MAXSL30 wins if you want a complete solar kit out of the box.
If you’re still on the fence, ask yourself this: how long do outages typically last where you live? If it’s more than a day, go with the M188 for its larger battery. If budget is the priority and you just need weekend coverage, the M168 is excellent for the price.
Top Pick: 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...
- MULTI-OUTPUT: MARBERO lithium backup battery pack equipped with 296Wh...
Buy this if you want the most reliable backup for multiple devices during extended outages. The 296Wh capacity and 350W peak output give you real peace of mind.
Runner-Up: MARBERO M168 Portable Power Station
No products found.
Best for light users who just need to keep phones and a tablet alive during short blackouts. The 100W output and 162.8Wh capacity are enough for weekend emergencies.
Best Value Kit: 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...
Choose this if you want a complete solar setup right out of the box. The included 30W panel and 111Wh battery are perfect for off-grid phone charging on sunny days.