380mAh Preheat Variable Voltage Battery & USB Charger. Standard 510 threading will fit nearly any unit on the market.

This slim pen style battery sports a classic manual operation with convenient one button controls for fast and discreet sessions anywhere on the go. Includes three power options to help you hit that perfect sweet spot with a wide range of different concentrated oil types (2.7V White, 3.1V Blue, 3.6V Red).