These smart batteries are a great value for the price. It packs a good amount of power and has a 380mah battery. Each smart battery comes with packaging and USB charger. The best part of this battery is the variable voltage. You can change the voltage from 2.0 volts all the way up to 4.0 volts. We recommend 3.0 - 3.5 volts. Also, there is a preheat option which allows you to preheat the vape cartridge before inhaling off of it. The instructions are conveniently printed on the insert card inside the clear plastic packaging. These smart batteries are the perfect battery to work with any 510 thread vape cartridge. These will work with any wick or ceramic coil model.
Press 5 times to turn on/off
Press 3 times to adjust the voltage
Press 2 times to preheat