The Vision Spinner V2 variable voltage battery is the highest capacity variable voltage eGo available. You can vaporize at your desired voltage and the battery lasts for hours on a single charge. The Spinner has a dial located at the base of the battery with four markings to indicate the output voltages at 3.3, 3.8, 4.3, and 4.8 volts. However, its adjustable throughout the entire voltage range. It also features an easy to read numbered dial and an upgraded stable PCB control board. Note: Features 510 threading.