Don’t get it twisted! This is the best vape pen battery for 510 thread prefilled carts or tanks. Dial into your voltage with the silky smooth twist knob at the bottom of the battery that allows you to adjust between 2.0 volts and 4.0 volts to pick the perfect temp to vape. The pen also features a pre-heat function so you can get your carts primed and ready. Plus, the high-capacity 500mAh battery makes sure you have plenty of juice between charges.

Features:

• High-capacity 500 mAh battery
• Works with 510 thread carts
• Push button draw activation
• Preheat function
• Variable voltage twist knob with push button (2.0V - 4.0V)
• Includes USB charging adapter.