Charge Your Gadgets Anywhere With This Pocket-Sized Folding Solar Panel

Solar Cru, YouTube
Solar Cru, YouTube

Portable power banks are great for charging your phone when you’re out and about all day, but even they need to be charged via an electrical outlet. There's only so much a power bank can do when you’re out hiking the Appalachian Trail or roughing it in the woods during a camping trip.

Enter the SolarCru—a lightweight, foldable solar panel now available on Kickstarter. It charges your phone and other electronic devices just by soaking up the sunshine. Strap it to your backpack or drape it over your tent to let the solar panel’s external battery charge during the day. Then, right before you go to bed, you can plug your electronic device into the panel's USB port to let it charge overnight.

It's capable of charging a tablet, GPS, speaker, headphones, camera, or other small wattage devices. “A built-in intelligent chip identifies each device plugged in and automatically adjusts the energy output to provide the right amount of power,” according to the SolarCru Kickstarter page.

A single panel is good “for small charging tasks,” according to the product page, but you can connect up to three panels together to nearly triple the electrical output. It takes roughly three hours and 45 minutes to charge a phone using a single panel, for instance, or about one hour if you’re using three panels at once. The amount of daylight time it takes to harvest enough energy for charging will depend on weather conditions, but it will still work on cloudy days, albeit more slowly.

The foldable panel weighs less than a pound and rolls up into a compact case that it can easily be tucked away in your backpack or jacket pocket. It’s also made from a scratch- and water-resistant material, so if you get rained out while camping, it won't destroy your only source of power.

You can pre-order a single SolarCru panel on Kickstarter for $34 (less than some power banks), or a pack of five for $145. Orders are scheduled to be delivered in March.

Amazon's Under-the-Radar Coupon Page Features Deals on Home Goods, Electronics, and Groceries

Stock Catalog, Flickr // CC BY 2.0
Stock Catalog, Flickr // CC BY 2.0

This article contains affiliate links to products selected by our editors. Mental Floss may receive a commission for purchases made through these links.

Now that Prime Day is over, and with Black Friday and Cyber Monday still a few weeks away, online deals may seem harder to come by. And while it can be a hassle to scour the internet for promo codes, buy-one-get-one deals, and flash sales, Amazon actually has an extensive coupon page you might not know about that features deals to look through every day.

As pointed out by People, the coupon page breaks deals down by categories, like electronics, home & kitchen, and groceries (the coupons even work with SNAP benefits). Since most of the deals revolve around the essentials, it's easy to stock up on items like Cottonelle toilet paper, Tide Pods, Cascade dishwasher detergent, and a 50 pack of surgical masks whenever you're running low.

But the low prices don't just stop at necessities. If you’re looking for the best deal on headphones, all you have to do is go to the electronics coupon page and it will bring up a deal on these COWIN E7 PRO noise-canceling headphones, which are now $80, thanks to a $10 coupon you could have missed.

Alternatively, if you are looking for deals on specific brands, you can search for their coupons from the page. So if you've had your eye on the Homall S-Racer gaming chair, you’ll find there's currently a coupon that saves you 5 percent, thanks to a simple search.

To discover all the deals you have been missing out on, head over to the Amazon Coupons page.

Sign Up Today: Get exclusive deals, product news, reviews, and more with the Mental Floss Smart Shopping newsletter!

McBroken: This Website Saves You a Trip to McDonald's By Telling You If Their Ice Cream Machine Is Down

McDonald's ice cream remains an elusive treat.
McDonald's ice cream remains an elusive treat.
Mike Mozart, Flickr // CC BY 2.0

Fast food is about indulgence, and there are few menu items that promote cravings more than the soft-serve ice cream cones and McFlurry treats at McDonald’s. These pseudo-dairy desserts have an ardent fan base despite the fact that the machines dispensing them are frequently out of service for maintenance or cleaning.

Now, a new website can inform customers when a McDonald’s ice cream machine may be down. It’s called McBroken, and The Verge reports it was created by 24-year-old software engineer Rashiq Zahid. The site maintains a map that displays in real time which restaurants are able to offer ice cream and which aren't.

How does Zahid gather this information? A program attempts to place a McSundae order at every McDonald’s location in the United States via their app. If it’s added to his cart, the location gets a green dot and is prepared to dispense ice cream. If not, a red dot indicates there will be no ice cream forthcoming.

McBroken also keeps a running tally of the percentage of all restaurants without a working machine. At last glance, it was at 10.93 percent.

According to The Verge, Zahid was inspired to create McBroken after failing to retrieve a McSundae while in Berlin, Germany, over the summer. His program, or bot, originally attempted to order a McSundae every minute, but the McDonald’s app declared the activity suspicious. Now, he has set it to attempt an order every 30 minutes. The system works, Zahid said, because he verified the results against locations he visited in Berlin in person.