'A must-have for outdoor adventures': This solar power bank has over 9,000 5-star fans and is on sale for 50% off

Whether you're a hiker, a camper, an off-roader or someone who simply wants some peace of mind during road trips and power outages, the Mregb Solar Power Bank is the insurance you need to keep your devices charged when power outlets aren't readily available. This handy battery pack holds an incredible 42,800mAh worth of charge — which can power one device up to four times — and it can be juiced up just by sitting in sunlight. Plus, it has a handy built-in flashlight. As if all that weren't impressive enough, it's currently on sale for only $28 at Amazon.

Mregb

Mregb Solar Power Bank

$28$60Save $32

This power bank could be an advertisement for a truck: It's built tough, can withstand any weather (thanks to a high waterproof rating) and can take a beating. It's a must-have in any emergency preparedness kit. 

$28 at Amazon

Why is this a good deal?

Compared to other power banks on the market, the Mregb gives you a lot more bang for your buck. Not only is this the lowest price it has ever been, but competitors that cost around the same price (like the Iniu portable charger) don't have the same features — like a flashlight, fast charging capabilities and more.

Why do I need this?

You never know when you might need a charge, so it pays to be prepared for power outages and potential emergencies. If a storm hits, your phone is your lifeline — you can receive weather updates, stay in touch with family and even order food delivery in case a tree falls across your driveway (and yes, that has happened. Just warn the delivery driver ahead of time.) This power bank makes it easy to charge your phone up from next to nothing.

There are two USB ports, so you can charge two devices at once. The Mregb Solar Power Bank even supports fast charging. It also has a flashlight that can work continuously for over 100 hours on a full charge.

But the real standout feature is the battery life. At 42,800mAhs, that's roughly four times the average capacity of one of these chargers. Plus, it has so much storage space without adding a lot of extra weight. The Mregb is rated for more than 1,600 charge cycles, so you don't have to worry about it dying on you anytime soon.

What reviewers say

One outdoorsy reviewer calls it an "absolute game-changer for anyone who's always on the go and needs a reliable source of power for their devices." They praised the Mregb for its build, its durability and — of course — its solar charging feature. "It's incredibly convenient to be able to harness the power of the sun to charge my devices, especially when I'm hiking or camping in remote areas. I've never had to worry about running out of battery on my phone or other gadgets. ... "The build quality of this charger is top-notch. It feels sturdy and well-made, and I love the compact and portable design. It easily fits into my backpack or even my pocket, making it a must-have for my outdoor adventures."

"I took this power bank to the desert for military training. I was able to charge my phone about four times and the solar power was able to replenish the power I used. Through intense heat and banging this device around whether in my bag or in the Humvee, this thing proved to be a trooper and still in great condition," wrote one soldier.

Another fan shared, "Two Saturdays ago we had a massive wind storm that blew through our area with gusts of 60 to 70 mph. It knocked over three large trees on my property and innumerable trees in our region of Ohio. Thousands were without electric including us. We didn't have electricity for 30 hours. So of course our cell phones — which were the only things we could communicate to our friends and family with — needed [charging] by the end of the first evening. Because of this power bank we were able to keep all 3three of our phones charged."

"I was impressed with about every aspect of it. It is sizable but holds enough sauce to charge my phone and communicator about 2.5 times each. The light worked great for inside the tent at night. The solar panel does work but I would only rely on it in emergencies as it is quite slow," another shopper said.

Mregb

Mregb Solar Power Bank

$28$60Save $32

This power bank could be an advertisement for a truck: It's built tough, with chemical and heat resistance. It also has an IP67 waterproof rating and is drop-proof, too. It can go anywhere you need it to go, which makes it a great choice for an emergency preparedness kit. 

$28 at Amazon

The reviews quoted above reflect the most recent versions at the time of publication.

If you have Amazon Prime, you’ll get free shipping, of course. Not yet a member? No problem. You can sign up for your free 30-day trial here. (And by the way, those without Prime still get free shipping on orders of $25 or more.)

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