Maintaining
Caring for the battery
Your headset battery will have a long life provided you follow these guidelines:
•Do not charge your headset outdoors
•Do not charge your headset if the ambient temperature is above 113° Fahrenheit (45° Celsius) or below 50° Fahrenheit (10° Celsius).
•Do not leave your headset connected to the charger for extended periods of time, as excessive charging will reduce battery life.