Photos: Solar power for the masses of gadgets

If you're just looking for a way to charge up renewable batteries, you can buy a battery charger that can plug into the wall socket or connect to a standalone small solar panel. This Battpak battery charger, which costs about $32, runs on both AC and DC power. It will also let you use your car lighter adapter to charge up your cell phone when you put batteries in the charger.

Photo by Battpak