Homemade Solar Batteries

It would be nice to be able to charge your batteries charge without using any conventional electrical chargers. Well, Knut Karlsen did just that. His homemade solar batteries are made out of normal rechargeable batteries, with built-in solar cells. All you need to do is to leave the batteries under the sun, and they will slowly regain energy.

By | 2017-03-10T05:04:38+00:00 July 21st, 2009|Alternative Energy|