Polymer Li-Ion Single Cell Battery 3.7V 1000mAh 603040 40*30*6mm 2 Wire
These are very slim, extremely light weight batteries based on the new Polymer Lithium-Ion chemistry. This is the highest energy density currently in production. Each cells outputs a nominal 3.7V at 1000mAh & Dimensions
These batteries require special charging. Do not attempt to charge these with anything but a specialized LiPo charger.
Battery includes built-in protection against over voltage, over current, and minimum voltage