How do I change my voltage of the Astro Battery and Astro Stik battery?

The voltage on your Astro Mod and/or Astro Stik Battery can be adjusted by rapidly tapping the activation button (3) times to alternate heat settings. There are three (3) settings which are identified by a color illumination. Please use the following guide to appropriately adjust your heat. Red: 3.8V   Green: 2.8V   Blue: 3.3V