This Kanger EVOD 1000mAh battery is EGO/510 thread capable and will work with any EGO or 510 thread capable cartomizer, clearomizer or tank system. Including all Kanger Clearomizers and Protank Series Tanks! Batteries are regulated at a constant output of 3.7V for consistent vapor performance throughout everytime. The 1000mAh EVOD eGo battery can support a little more than 1000 puffs. The battery can be charged nearly 300 times before needing to be replaced. The batteries all come with a 5-Click On/Off feature. This can help prevent you from unintentionally turning the battery on. Simply press the button 5 times in a row manually to turn the battery either ON or OFF.