Slim Design 9mm Diameter
3.4-4.2 Volt Variable Output (4 Settings)
Pre-Heat Function for Thick or Thin Oils
This is perhaps the most widely recognized battery on the market for THC/CBD oil, now with four variable voltage settings as well as a preheat function for thick or thin oils. This battery has an output of 3.4/3.7/4.0/4.2 volts, which will suffice for 1.7 ohm and higher resistance cartomizers. With the lower resistance cartomizers you might need a stronger battery with a higher voltage output, which is when the Serenity 400 comes into play. This is a button-less battery, simply inhale to activate. You can use the stylus for your phone or tablet. At 18gms and with 510 threads it is a great deal. To change the voltage, the button is accessible from the end of the stylus tip.