18650 battery Specification:Battery Capacity:2000 mAhBattery Type: 18650Battery Voltage: 3.7vBattery Quantity: 2 Battery Color: PurpleChemical Composition: Li-Ion ChargerLi-Ion Battery Universal Charger:Charger Input: AC110-220V 47-63 HZCharger Output: 3.7V/450mACharger color: Black