KPEN's new V2 Vape Cartridge Battery is a beautiful piece. A chromed aluminum casing contains a button-less and intuitive 3.7 volt - 280mAh battery with 510 thread. Ideal for any vape cartridge, but paired perfectly aesthetically and technologically with the all-new KPEN V2 vape cartridges from Kurvana.  The included USB charger provides quick and easy power-up. Elegantly designed for efficiency and simplicity. One draw reveals a seamless transition from liquid to vapor.