To charge Mobile Link + Fall Detection, rest it on the included charging cradle with the lanyard at the top of the cradle near the charging cord and the status lights down near the light on the bottom of the cradle. The red battery light will flash every 2 seconds while Mobile Link + Fall Detection is charging. When Mobile Link + Fall Detection is fully charged, the red battery light will be solid red.
It takes about 5 hours to charge the battery initially, and then it takes about 3 hours to charge the battery after that.
The Mobile Link + Fall Detection battery will last up to 5 days, depending on signal strength and how frequently location information is requested. Mobile Link + Fall Detection uses more power when it is in a low signal area or when requesting information from it. Battery life will vary, like a cell phone does. The Mobile Link + Fall Detection battery can last from over a day in poor conditions to 5 days in standby.
The red battery light will flash every 1 second when the battery is low.