High quality 3.7 V Li-Ion rechargeable battery pack,Made of 2* 2200mAh cylindrical 18650 cells with PCB and poly switch for full

1. High quality 3.7 V Li-Ion rechargeable battery pack

2. Made of 2* 2200mAh cylindrical 18650 cells with PCB and poly switch for full protection

3. Light weight and higher energy density than any rechargeable battery

4. No memory effect and rechargeable

5. Longer storage life than Ni-MH battery

6. Built-in IC chip will prevent battery pack from over charge and over discharge and prolongs battery life

7. Perfect 3.7V battery pack for bike lighting, RC toy, robots, laptop and DVD external battery

Li-Ion 18650 Pack 3.7V 4400mAh with PCB and connector (2P1S)