Replacing the batteries

When the battery light blinks red, the batteries must be replaced.
NOTE: For aircraft-powered headsets, batteries are not required for operation if aircraft power is available. However, you can still install batteries when connected to aircraft power as a backup in case of power interruptions or disconnections.

1. Power off the headset.
2. On the back of the control module, press down firmly on the finger indent and slide the cover down.
   CAUTION: The battery cover is tethered to the control module. Do NOT attempt to detach it.
3. Remove the batteries.
4. Insert two AA batteries (alkaline preferred), observing proper polarity.
   CAUTION: If the batteries don’t fit correctly, do NOT force them in. Forcing an improper connection will cause permanent damage to the control module.
5. Close the battery cover, press firmly down on the finger indent, and slide the cover into place.
   NOTES:
   • New AA alkaline batteries supply up to 45 hours of power for the headset. Battery life varies with the ambient noise level of the aircraft, temperature, ear cushion condition, Bluetooth feature use, and age of the batteries
   • Other battery chemistries may yield different results. Battery life may differ and battery life indication may not be accurate