You can harness the power of the sun's rays to charge your electric vehicle. Here's how many solar panels you'll need to do ...

and is intended to pad out a phone’s reserved charge while it’s not in use. The phone with built-in solar panel on the back is pretty self-explanatory, but I think the case is more interesting.

You’d need the weather to cooperate for a while to fully charge the Yoga Solar PC using its relatively small solar panel, but it could be a welcome fallback for when a power outlet is nowhere in ...