NEW KangerTech E-smart 510 BCC (Bottom Coil Changeable) cartomizer starter kits. It comes with the E-smart 510 BCC cartomizers, 320mAh batteries! KangerTech New E-smart 510 BCC (Bottom Coil Changeable) cartomizer starter kits are a new upgraded version of the E-smart. The E-smart 510 BCC (Bottom Coil Changeable) cartomizer differs from the old version as the bottom coils are now changeable. Order Tips: 1. 1.2ml capicity, 1.8ohm resistance. 2. E-smart battery is 3.4V constant voltage output battery. After fully charged and before use, it might be about 4V, and after use, the voltage output should be 3.4V or a little lower. 3. It's an empty cartomizer so you still need to order e-liquids. KangerTech E-smart 510 1.2ml empty BCC clear cartomizer/clearomizer comes with 1.8ohm resistance. KangerTech E-smart 320mAh manual battery comes with 5-click ON/OFF protection: Generally, the battery is shipped in the off position. In off position, the battery will not function even when pressing the button. To turn on battery, press manual button 5 times within 2 seconds. You will see white LED flash. To turn off battery, press manual button 5 times within 2 second as well, the white LED will flash! "5-click ON/OFF protection" can protect the battery from being activated when you do not want or do not use it. No more firing in your pocket! 15 seconds cutoff time! White LED! Replacement E-smart BCC Cartomizers, E-smart BCC Heating Coil. Each starter kit contains: 2pc 320mAh Esmart batteries with 510 threading 2pc E-smart 510 1.2ml empty BCC (Bottom Coil Changeable) clear cartomizer/clearomizer, 1.8ohm 1pc AC to USB wall adapter( US plug ) 1pc 230V 500mA AC-USB adapter 1pc Instruction manual Unit:1 Set Ecig Size:diametter 10mm ; Length: 136mm Battery Output Voltage: 3.4v Battery Capacity:320mAh Clearomizer Resistance:1.8ohm Clearomizer Capacity:1.2ml Threading:510 Package: gift paper box Warranty: 30 days warranty for batteries. Only accept DOA for all other parts.