Make a Solar-Powered Battery Charger Out of a Playing Card [Macgyver Tips]
If you're looking for a space-saving alternative to recharging your AA or AAA batteries, you can put together a solar-powered battery charger out of nothing but a playing card and a few other small materials. More »


from Lifehacker http://lifehacker.com/5935315/make-a-solar+powered-battery-charger-out-of-a-p...
