Features
18650 
2100mAh
30 Amp discharge rate - ability to build lower resistance coils and therefore place less stress on the battery
Type: Li-Mn Hybrid IMR
Rated Capacity: 2100mAh (High Drain)
Rechargeable
Maximum Rated Discharging Current: 30A
Storage Voltage: 3.7V
Charging Voltage: 4.2V
Diameter: 18.0 +/- 0.5mm
Height: 65.0 +/- 0.5mm