2013 alibaba China hot selling ego c twist /ego twist with 510 connector ego battery ego twist batteryIt doesn't get any better than this battery! Imagine a top quality battery with variable voltage features. Vape at your desired voltage; higher voltage means more vapor! The eGo-C Twist battery is compact making it the most portable variable voltage device available. The eGo-C Twist has a dial located at the base of the battery; simply turn the dial to your desired vaping voltage. ego c twist other advantage:Ego C twist is safer than regular ego batteries because each battery has 3 kinds of Protections:1.Short Circuit Protection: When short circuit happens, the battery will shut down. The battery won't go back to work until short circuit ends.2.Atomizer Protection: If you press the button for 10 seconds, the battery will be locked until the next press.3.Low Voltage Protechtion: When the battery voltage is lower than 3.3v, the battery will shut down.