Functions:

Adjustable Voltages:
- 3 clicks to cycle through different voltage settings
- Green LED for 2.9V
- Blue LED for 3.7V
- Red LED for 4.0V
Preheat Function:
- 2 clicks to activate preheat
- Preheat at 1.8V for 15 seconds
- Single click to cancel preheat

This type of battery offers customizable voltage and preheat options, making it suitable for different oil viscosities and personal preferences.

Ensure compatibility with your specific vape cartridge before use.