Solar-powered battery packs are great to toss into a backpack for a hike, or use in an emergency, right? Here's what to know ...

Portable solar panels and solar battery chargers are easy-to-use devices that provide backup power to anyone who happens to be away from a working power outlet, including hikers, car campers, and even ...

It is 70 years since AT&T’s Bell Labs unveiled a new technology for turning sunlight into power. The phone company hoped it could replace the batteries that run equipment in out-of-the-way places. It ...