Solar Strap

If you want to take many photos outside until the battery dies, and finally beat his neck red, this is the lanyard for you. It actually uses all that energy from the sun is usually using just to give you a nasty sunburn and the cost of your camera with her. The strap has combined a large flexible solar panel which is waiting for a little sun to absorb.
The design was created by Weng Jie. It could for those times when you need strength for large events can be used, and not by chance have a spare battery on hand. You can move only in a window if you do not shoot at other times of recharge. Unfortunately at the moment this is only a concept design, so it can not immediately be bought.