... , LED, portable instruments, kinds of meters, PDA etc.1) 3.7V 18650 size Cylindrical Li-Ion Cell2 ... is wrapped by white PVC shrink tube Voltage 3.7V Capacity 8800 mAh ( 32.56 wh ... to protect wrong polarityOvercharge (>4.2V)Overdischarge ( <3.0V)Over drain ( > 17.6 Amp)Short circuitsPrewired ... Application:GPS Tracker, LED, medical devices, kinds of meters, portable instruments, PDA, Power tools, miner's ...