Part number : CGR18650CG
Function : Rechargeable Li-ion Battery
Package information Height : 0.6 x 1.2 x 3.1 inches
Manufacturer : Panasonic
Rechargeable 3.6V Li-ion 18650 Battery 2250mAh
To ensure safety, the referenced Li-ion cell is not sold as a bare cell. Li-ion cells must be integrated with the appropriate safety circuitry via an authorized Panasonic Li-ion pack assembler.
*1 After a fresh battery has been charged at constant voltage/constant current (4.2 V, 1500mA (max), 2 hours, 20°C), the average of the capacity (ending
voltage of 3 V at 20°C) that is discharged at a standard current (430mA).
*2 Dimensions of a fresh battery
Reference site : http://www.thevapersden.com/index.php?topic=9193.0