Come with 2pcs 16340 1200mAh 3.6V batteryCharger Specifications: Color:Black Input: AC 100V - 240V 50 / 60Hz Max150mA Output: DC 4.2V 600mA Compatible for 1 or 2 x 16340 CR123A Rechargeable Battery Dimensions: 8.5 x 4.8 x 3.8 mm(L x W x T) Weight: 55g Type: 16340 CR123A Rechargeable Battery  Battery capacity:1200mAH Battery voltage: 3.6V Battery color: Blue Weight:27g Item Included: 1x Black Digital Smart Charger  4x 16340 CR123A Battery