Yogen Battery: Rechargeable battery gadgets are ready for use anytime
Yogen Battery is a rechargeable battery gadgets are ready for use anytime without having to wait like that done when using of the sun or kinetic energy must to shake first. YOGEN using a spring system that I use it quite interesting that there rope and then directly and will slowly recharge the battery, weakness of the power generated so little for charging the battery in the phone much longer than others.
YOGEN be useful as an emergency backup battery where you really have to call on when necessary. Currently YOGEN been sold for $39.99.