Harness energy from the sun with a solar-powered charging bank that's on sale

Stop your phone from running out of power in the middle of a hike with this solar-powered charging bank that's on sale.

For less than $20, you can get this best-selling power bank that supposedly delivers fast and efficient charging in a pinch. Its micro USB cable lets you plug it into just about any of your USB-enabled devices, and it's shockproof, waterproof, and dustproof to help you battle the elements. It even works as an LED flashlight in case you're traveling at night, and it can hook onto your backpack for easy portability.  Read more...