Manufacturer’s listed Specifications:

High Drain- 20A constant current
Model: LG 18650 HG2
Nominal Capacity: 3000mAh
Nominal Voltage: 3.6V
Full charge Voltage: 4.2V
Operating Temperature (cell surface): Charge 0 ~ 50℃ , Discharge -20 ~ 75℃
Diameter : 18.3 + 0.2/-0.3 mm ( Max. 18.5 mm )
Height : 65.0 ± 0.2 mm ( Max. 65.2 mm )
Weight Max. 48.0 g
Positive terminal: Flat top
To ensure longevity, it is not recommended to allow the battery to discharge below 2.5V.

Please note that due to their inherent safety, IMR cells don’t have a protection circuit built in. They should never be discharged below 2.5 volts or cycle life/performance will be reduced. Maximum charge voltage is 4.25 volts.

Package Contents:
1 x LG HG2 18650 LiMn 3000mAh Battery – 20 Amp