These Batteries are available in a variety of sizes from 350mAh up to 1300mAh.  The batteries all have a convenient twist variable voltage feature that allows you to really dial in exactly what you are looking for.  There is also a preheat setting that runs for 10 seconds with 2 quick clicks of the button.  You can easily recharge them with the included screw on USB adapter.  

This battery feels like a high-quality writing instrument in your hand or pocket, with a solid body and precision quality and resistance on the button. The HoneyStick 510 thread twist vape pen battery also has a pre-heat function to get your carts primed and ready.

In The Box
1 Twist Adjustable Voltage Character Battery