Fullriver 2014 First Quarter new product, Arc battery, curved battery, or flexible battery, reasonable shape design that could use the space of container efficiently, two types available, namely 3.7V and 3.2V. Apply to many wearable device, such as Medical Devices, Wrist Devices and Headset Devices. It also can be customized such as radian,dimension and capacity .The R&D cost is around $10 thousand USD.