Dr. G-King Variable Voltage Vape Battery
Check out the Dr. G-King Variable Voltage Vape Battery. The 900mAh battery can easily heat up your favorite e-liquid or oil-based cartridge in no time.
The battery is adjustable from 3.3v to 4.8v. and is easy to operate. Just click five times to turn it on or off. Click twice to set to preheat mode.