Just when you thought you've heard it all, seen it all and have done it all. Someone has come up with a battery that is flat, green and eco-friendly. It's called FLAT BATTERY. A device as odd as it seems is too good to be true. It defusses the radiation your cell phone gives off when you use it. Flat battery is usually good for about 30 days, but by eating at least a half an apple it will last about 6 months. It has been known to last even longer.