Full-charged battery can support nearly 600 puffs on one charge.
This is a variable voltage battery. A fully-charged battery can support nearly 1000puffs on one charge.
KangerTech EVOD Twist VV battery is a variable voltage eGo battery that comes with 510/eGo thread, 650mAh available. Variable Voltage output from 3.2V to 4.8V,