1 Battery, and 1 Charger. The battery is compatible with any 510 thread cartridge. The parts are made using all premium and quality materials *Cartridge NOT included* To get the best flavor and effects from our cartridges, use the low voltage setting. Our batteries come with 3 settings: 2.5 volts 2.7 volts and 3.0 volts. This is to help ensure you never burn your oil!