3.7v paper battery with pcb 1.3.7v 260mAh 2.1.6mm,and with 1.6mm thin pcb 3.12 ... battery,li-polymer battery ,lithiumbatterypack ,ultra-thin battery ,shaped battery ,triangle shape battery ,irregular shape battery ,Mp4 battery ,GPS battery ,tablet PC battery, power tool battery ,medical battery ,e-bike battery ,high-rate battery ... applications . ultra-thin 3.7V 260mAh 163475 lipo rechargeable battery