Voltage Switch

Use the L-H switch on the bottom to toggle Low (to prioritize flavor) and High (for more vapor cloud).

Charging

For best results, charge before use. Full charge takes about an hour. Do not charge unattended. Do not continue charging once fully charged or charge overnight. Do not use high-voltage (>5V) chargers.

LED Indicators

Charging - flashes red or green
Fully charged - glows green 
In use - glows green 
Connection error - glows red for a few seconds
Short circuit - flashes red a few times then stops

Storage

Store in a cool dry place, out of direct sunlight. Avoid extreme temperatures and store in a dust-free area. Damage may occur if battery is dropped or cartridge is overtightened.