The eLeaf iStick 30 Watt battery is based on the 20 watt iStick, yet has been upgraded to allow for a wider output range and can accommodate atomizers with a resistance as low as 0.4 ohms! The battery capacity measures at an impressive 2200mah despite its compact size. The iStick 30 Watt can be run in either the variable wattage mode between 5 Watts and 30 Watts, or the variable voltage mode between 2.0 Volts and 8.0 Volts. Other improvements you’ll notice on this version of the iStick are the spring loaded 510 connector for adaptability, stainless steel 510 threading for durability, and a redesigned top that allows for a nice fit with 22mm or 23mm diameter atomizers. The iStick 30 Watt still features an OLED screen, but another new feature is the ability to lock/unlock the “arrow buttons” by simply holding the up and down buttons simultaneously for 2 seconds. If you’re looking for a cost effective, yet compact and powerful device with similar capabilities as high-end box mods, the eLeaf iStick 30 Watt is a great option for you!