Hurricane season hit and we lost power for three days. This was the only reason I could keep my phone alive to check weather alerts and stay in touch with my mom.
Emergency Solar Power Bank$49.99 
"Amazing"
Emergency Solar Power Bank
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Due to high demand, limited quantities available.
Trusted by 200K+ customerswho choose Fort Sentinel for backup power when it matters most.
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See it in action
How many times can it fully charge my phone?
You're looking at about 2-2.5 full charges for most iPhones and Samsung Galaxy phones. That's enough to get you through a full weekend trip without ever seeing a low battery warning. We don't inflate our numbers. What we list is what you actually get.
How fast will it charge my phone?
The USB-C port delivers 20W fast charging. That can get a compatible iPhone from dead to about 65% in around 30 minutes. The USB-A port and wireless charging are slower, but still useful for overnight or passive charging.
Is it waterproof? How durable is it?
It's rated IPX4 splashproof, meaning rain, sweat, splashes, and spills should not hurt it. It also has a rugged ABS and PC shell with reinforced rubber edges. Do not submerge it in water.
Can it charge multiple devices at the same time?
Yes, up to 3 devices at once. You have a USB-C port, a USB-A port, and wireless charging all working simultaneously.
Can I take it on a plane / Is it TSA approved?
Yes. The TSA limit is 100 watt-hours. This power bank is 37Wh, so it is below the limit. Bring it in your carry-on and check your airline's rules before departure.
How long does the solar panel actually take to charge this?
The solar panel is your backup, not your main charger. It slowly tops the power bank up during the day. For a dependable full charge, plug it into a USB-C charger before you leave home.
What's the warranty?
Every order comes with a 90-day money-back guarantee. If you don't love it, send it back according to the return instructions.
Lauren J. ★★★★★I was skeptical the solar charging would actually work, but after leaving it on my windowsill for a few days it topped itself back up. Knowing I have a power source that doesn't need an outlet gives me peace of mind for when things go sideways.
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★★★★★ Rated 4.8/5 based on +10,839 Total Ratings
Customer Reviews
Emergency Solar Power Bank$49.99 
I spend weeks out in the backcountry where there's no outlet for miles. I clip this to my pack, it charges in the sun while I hike, and I've never once run out of battery on a trip.
Emergency Solar Power Bank$49.99 
I live by myself and my biggest worry is not being able to call my daughter if something happens. I keep this charged on my kitchen counter and it makes me feel safer knowing I'll always have a way to reach her.
Emergency Solar Power Bank$49.99 
I've been living out of my van for eight months and this is the one piece of gear that's never let me down. It charges from my dashboard sun and keeps my phone and speaker going all day.
Emergency Solar Power Bank$49.99
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90 Day Money-Back Guarantee
We're so confident in the quality of our product that we offer a satisfaction guarantee. If you're not completely satisfied with your purchase, simply return the item within 90 days for a full refund.
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Customer reviews
5.0 ★★★★★340 reviews
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Bought this for a friend who had a power outage and he said it was a lifesaver.
03/08/2026I bought this for my boat and needed my phone during a serious storm. The marina had no power, but I was still able to contact relatives.
03/08/2026All in all, 10 out of 10. I would recommend it.
03/08/2026Super buena y duradera, compraría otra más.
03/07/2026Excellent quality solar charger. Fast charge with excellent assets for the battery.
03/06/2026