'Must-have for outdoor adventures': This solar power bank is over 90% off for Labor Day

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 — enough to fully recharge 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.

Amazon

Mregb Solar Power Bank

$27$300

Save $273 with coupon

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.

Save $273 with coupon

$27 at Amazon

Why is this a good deal? ??

It's over 90% off. That's an absolute bonkers discount for a gadget that already delivers a tremendous amount of value. This is not the lowest price we've seen for it, but it's close. If you're looking for a standout deal, this is it, thanks to Amazon's Labor Day sale.

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; it kind of scared them.) 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. 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 ??

This No. 1 bestseller has over 7,000 five-star reviews from satisfied travelers everywhere.

Pros ??

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 the Humvee, this thing proved to be a trooper and still in great condition," wrote one soldier who was impressed by its durability.

Another fan shared a story of why it's good to have on hand in an emergency. "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 electricity, 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 three of our phones charged."

Cons ??

Although you can charge it anywhere, some fans said it takes a while. "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.

It's not exactly small, but that's not necessarily a negative, according to users. "It feels super bulky so you don't have to worry about it breaking."

Amazon

Mregb Solar Power Bank

$27$300

Save $273 with coupon

No matter how tough you are on tech, this power bank is tougher. According to one reviewer, it survived the desert heat and took a lot of abuse being bounced around in a Humvee. 

Save $273 with coupon

$27 at Amazon

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

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