3.7V 2100mAh Rechargeable 18650 Li-ion Battery - Green
Battery voltage: 3.7V; Charging voltage: 4.2V+/-0.05V; Standard charging time: 3h; Continous max. charging current: 4A; Max. discharge current: 30A; Discharge cut-off voltage: 2.5V; Suitable for electric tool electric car flashlight equipment R/C airplane etc.