Harmony Pen Vaporizer, Battery+Charger - Product Information
- Unscrew the cartridge from the battery.
- Twist the battery clockwise onto the USB charger included (do not over tighten).
- Plug the USB charger into a USB Port or a USB AC adaptor.
- While charging, the USB light will turn red and the tip of the battery will glow.
- Once a full charge has been reached, the light on the USB will turn green and the tip of the battery will no longer glow. This may take several hours.