The Plus Battery is a 510 battery that offers three precision heat settings with one button: 

 - Blue (Low) 
- Green (Medium) 
- White (High) 

 It also offers Sesh Mode, a heat cycle that runs for twelve seconds without having to hold the button down. Button functions: 

 - Hold for continuous heat. 
- 2 clicks: Initiates Sesh Mode. 
- 4 clicks: Cycle through heat settings. 
- 5 clicks: Turns the Plus on and off.

Also compatible with 510-threaded carts.