Panasonic NCR18650A Li-Ion

Panasonic NCR 18650A 3100 mAh Lithium-Ion Cell
Size                                 : 18.25mm x 65mm
Nominal Voltage            : 3.6V
Capacity                         : 3100mAh 
Color                               : Green
Charging Voltage           : 4.2V ~ ±0.05 V
Discharge Voltage         : 2.5V (Average cut off)
Charging Current           : 1650 mAh Standard  , 3100 mAh Rapid
Max. Charge current      : 3100mA(ambient temperature 25℃)
Max. Discharge Current : 6200mA(ambient temperature 25℃) - 2C
Internal resistance        :  0.11 Ohm
Energy (W/h)                 : 11.05
Max. Weight                   :  48g
Charging Metod              : CC-CV (constant voltage with limited current)
Charging cycles  - up to 1000x
Flat Top Button , High Energy Densyit
PTC - protect against over temperature and indirectly over current and will automatic reset
CID or pressure valve, will disable the cell permanently if the pressure is to high in the cell (Can be due to over charge)
Non PCB  - Without Protection Board
Enviromental Friendly