MinChen 2 pcs Protected 18650 2000mAh 3.7V Rechargeable Battery with Dual Charger for 18650 Protected 18650 rechargeable li-ion battery Voltage:3.7v; Capacity:2000mAh, Battery Size:18.2mm(Dia.)x 68mm(Long) Color:RED, The battery charging time:8-11hrs. Smart charger,red indicator while charging, when 2 batteries are full charged, the charger will automatically stop and indicator light green. Please fully charged the new Li-ion batteries before first use! PLEASE NOTE:The Protected Battery is NOT FIT for vapor products as they are a little longer than standard 18650s.