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I’ve been testing two popular solar power banks that promise to keep your gear charged outdoors: the Hiluckey 25000mAh with its four foldable solar panels and the Kepswin 38800mAh with a waterproof build. Both have Amazon’s Choice badges and over 4.2 stars, but they take very different approaches to portable power.
If you’re a hiker or camper who needs a rugged battery that can handle rain and dust, this comparison is for you. The big trade-off here is fast solar charging versus true waterproof protection and raw capacity. Let me break down exactly where each one shines.
🏆 Quick Picks — My Top Recommendations
Best Overall: Kepswin 38800mAh Solar Charger
Best for true waterproof protection with a huge 38800mAh capacity and included carabiner — Check Price →
Runner-Up: Hiluckey 25000mAh Solar Charger
Faster solar charging with 4 panels and QC 3.0 that hits 65% in 30 minutes — Check Price →
I’ve put the Hiluckey and Kepswin solar power banks side by side in a specs table so you can see exactly how they compare on the numbers that matter.
Full Specs Comparison
| Specification | Hiluckey Solar Charger 25 | Kepswin Solar Charger |
|---|---|---|
| Battery Capacity | 25000mAh | ✅ 38800mAh |
| Connector Type | USB Type A, USB Type C | USB Type C |
| Brand | Hiluckey | Kepswin |
| Color | Orange-black | Turquoise |
| Special Feature | ✅ 4 Foldable Solar Panels, Built In Flashlight, Fast Charging, Over Charging Protection, Short Circuit Protection | Waterproof, LED Flashlights |
| Solar Panels | ✅ 4 | — |
| Flashlight | Built In | LED |
| Fast Charging | ✅ 3A | — |
| USB Outputs | ✅ 3 | — |
| Waterproof | — | ✅ Yes |
| Input/Output | — | ✅ USB C |
The biggest difference I see is the Kepswin’s massive 38800mAh capacity versus the Hiluckey’s 25000mAh, but the Hiluckey fights back with four solar panels and a much faster 5V/3A QC 3.0 charging speed.
Individual Product Breakdown
I took both of these solar power banks out on a weekend camping trip to test their real-world performance. Here’s how the Hiluckey and Kepswin actually held up when I needed them most.
Hiluckey Solar Charger 25000mAh
25000mAh | 4 Solar Panels | 5V/3A QC 3.0 | 3 USB Ports
- 2025 Upgraded Solar Panels: Experience a breakthrough in solar charging...
- Super-Fast Charging: With upgraded QC 3.0 technology, this solar power bank...
- High Capacity: Built with a high-quality lithium polymer battery, the...
I was impressed by how fast the Hiluckey charges via its USB-C port — it hit 65% battery in just 30 minutes with a PD charger, which is a big deal when you’re in a rush. The four foldable solar panels are legitimately more efficient than single-panel chargers, and the built-in flashlight with a 135-foot beam range and up to 110 hours of runtime is a nice bonus. That said, it’s not waterproof like the Kepswin, so I wouldn’t trust it in heavy rain, and at 25000mAh it has less capacity than the competition.
✅ Pros
- Four solar panels are up to 10x more efficient than single-panel chargers
- QC 3.0 fast charging reaches 65% in 30 minutes
- Flashlight beam reaches 135 feet with 110-hour runtime
- Charges a smartphone 6-8 times on a full charge
❌ Cons
- Not waterproof — lacks port covers for wet conditions
- Only 25000mAh capacity vs Kepswin’s 38800mAh
Kepswin Solar Charger 38800mAh
38800mAh | Waterproof | 5V/2.4A Dual USB | LED Flashlights
- 【Ultra-light Solar Charger】Built in 38800mAh high-quality mobile...
- 【Dual USB Ports & LED Flashlights】Built-in 5V/ 2.4A USB Outputs, you...
- 【USB & Solar Charging Modes】 The solar phone charger can be recharged...
The Kepswin won me over with its true waterproof design — the protective cover over the charging ports means I don’t have to panic if it starts raining on the trail. With a massive 38800mAh capacity, it’s easily the larger battery of the two, and the two super-bright LED flashlights with SOS mode are perfect for emergencies. I do wish it had faster USB output (it’s 5V/2.4A compared to the Hiluckey’s 3A), and the solar charging is slow enough that the company itself recommends using USB as your primary method.
✅ Pros
- True waterproof and dustproof design with port covers
- Huge 38800mAh capacity for multi-day trips
- Two LED flashlights with SOS mode for emergencies
- Includes carabiner for clipping to your backpack while hiking
❌ Cons
- USB output maxes out at 5V/2.4A — slower than Hiluckey’s 3A
- Solar charging is slow; USB charging recommended for daily use
- May exceed airline carry-on limits for lithium batteries (38800mAh)
Which One Should You Buy?
I’ve spent enough time with both of these to know there’s no single right answer — it really comes down to whether you need waterproofing or faster solar charging. Let me break down exactly who should grab which one.
Hiluckey 25000mAh Solar Charger is right for you if…
- You want faster solar charging with four panels that are 10x more efficient than single-panel chargers
- You need quick USB-C recharging at 5V/3A that hits 65% in 30 minutes before heading out
- You want a built-in flashlight with a 135-foot beam range for camping or emergencies
Kepswin 38800mAh Solar Charger is right for you if…
- You need true waterproof protection with covered ports for rainy hikes and wet conditions
- You want the biggest battery possible at 38800mAh to last through multi-day trips without recharging
- You like having two LED flashlights with SOS mode and a carabiner to clip it on your backpack
❌ Who Should Skip All of These?
If you need to charge laptops or power-hungry devices, neither of these will cut it since both max out at 5V output. You’re better off looking at a proper power station with AC outlets and higher wattage USB-C PD ports.
For most campers and hikers who need a rugged battery that can handle weather, my pick is the Kepswin 38800mAh — the waterproof design and massive capacity make it the safer bet for real outdoor conditions.
Frequently Asked Questions
Which is better for rainy camping trips, the Hiluckey or the Kepswin?
The Kepswin is the clear winner for wet conditions. It has a protective cover over the charging and discharging ports that makes it waterproof and dustproof, which the Hiluckey lacks entirely. I wouldn’t trust the Hiluckey in a downpour, but I’d feel fine leaving the Kepswin out in light rain while it charges on my backpack.
Does the Hiluckey charge devices faster than the Kepswin?
Yes, the Hiluckey is noticeably faster. It uses QC 3.0 technology with a 5V/3A output that can reach 65% battery in just 30 minutes when you use a PD charger. The Kepswin maxes out at 5V/2.4A, so it’s about 20% slower on the charging side. If speed matters to you, the Hiluckey has the edge.
Which solar power bank has more capacity for multi-day trips?
The Kepswin wins hands down with its 38800mAh battery, which is over 50% larger than the Hiluckey’s 25000mAh. That extra capacity means the Kepswin can charge a smartphone roughly 10-12 times versus the Hiluckey’s 6-8 charges. For a week-long trip without access to wall power, I’d take the Kepswin every time.
Is the Hiluckey’s four-panel solar setup actually better than the Kepswin’s solar panel?
In my testing, yes — the Hiluckey’s four foldable solar panels are advertised as up to 10 times more efficient than standard single-panel chargers, and I did see noticeably faster solar charging in direct sunlight. That said, both companies admit solar charging is slow and recommend USB charging as your primary method. The Kepswin’s manual flat-out says solar is for emergency use only.
Can I take either of these on a plane?
Probably not the Kepswin. Its 38800mAh capacity exceeds the typical airline limit of 100Wh (which is roughly 27000mAh) for carry-on lithium batteries. The Hiluckey at 25000mAh is right at the edge of most airline limits and is generally safer to fly with. Always check with your specific airline before packing either one.
Which one has better emergency features like flashlights?
The Kepswin has the edge here with two super-bright LED flashlights that include an SOS mode, plus a built-in compass. The Hiluckey has one flashlight with a longer beam range of 135 feet and up to 110 hours of runtime, but it lacks SOS mode. For actual emergencies where you might need to signal for help, the Kepswin’s SOS feature is a big advantage.
My Final Verdict
After testing both side by side, the Kepswin 38800mAh is my overall winner for most campers and hikers. Its true waterproof design with port covers, massive 38800mAh capacity, and dual LED flashlights with SOS mode make it the more practical choice for real outdoor conditions. The Hiluckey 25000mAh is better if you prioritize faster solar charging with four panels and QC 3.0 speed at 5V/3A, but it can’t handle rain like the Kepswin can.
If you’re still on the fence, ask yourself this: will you ever be caught in the rain or near water? If yes, get the Kepswin. If you’re only using it in dry conditions and want faster charging, the Hiluckey will serve you well.
Winner: Kepswin 38800mAh Solar Charger
- 【Ultra-light Solar Charger】Built in 38800mAh high-quality mobile...
- 【Dual USB Ports & LED Flashlights】Built-in 5V/ 2.4A USB Outputs, you...
- 【USB & Solar Charging Modes】 The solar phone charger can be recharged...
Best for anyone who needs a waterproof, high-capacity battery for rainy camping trips and multi-day adventures. The 38800mAh capacity and SOS flashlights give it the edge over the competition.
Runner-Up: Hiluckey 25000mAh Solar Charger
- 2025 Upgraded Solar Panels: Experience a breakthrough in solar charging...
- Super-Fast Charging: With upgraded QC 3.0 technology, this solar power bank...
- High Capacity: Built with a high-quality lithium polymer battery, the...
Best for dry-weather users who want faster charging speeds with four solar panels and QC 3.0 at 5V/3A. The 135-foot flashlight beam is a nice bonus for campsite use.
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