- Blue blink: LaCie Fuel Wi-Fi is starting up.
- Blue solid: LaCie Fuel Wi-Fi is active and ready to be used.
- When plugged into power source:
- Green solid: Fully charged (90% or higher charge).
- Amber: Charging.
- When not plugged into power source:
- Green: Battery in use.
- Red: Requires a charge (less than 50 minutes or 20% of battery life remains).