This is the 103 mini e cigarette automatic switch battery
which is fit with Mini e Cigarette models(BE103,DSE103, RN4081, Smoking Everywhere)

Characteristics: 

    Diameter: 9.1mm
    Length:    70 mm
    Weight:    13 g

    Connector screw: M8.0

  Content of battery :280 mah
  Nornal Working Voltage:3.6v-4.2v
  Full battery can keep for :about 250 mouthfuls
  Charge time:2-2.5hours