The EVOD 1100 mAH battery is customized for the EVOD clearomizer, every EVOD battery has 3.3V constant output voltage, which gives it the same vaping ability no matter it is fully charged or not, so theres no drop in performance. The EVOD battery has a flush button on the battery with LED light around it. The battery’s button has a 5-click On/Off lock the same as eGo T batteries. Press the button 5 clicks within 2 seconds and activate the battery. Every battery come with six months guarantee and fully charged and ready to go. We have four amazing choices of colours for you to pick give you vapour the personal touch. This battery will last up to 24hrs.