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Changing the Battery in A Forerunner 50 or FR60/70 Watch
It is recommended for users to take their fitness device to a professional watch repair technician. However, this battery is user-replaceable if you have the experience and the proper tools.
To replace the battery follow these steps.
If desired, backup all activity data with Garmin Connect.
Remove back cover plate from watch.
Remove battery from the watch module.
Wait one minute to ensure all residual energy has been discharged.
Insert a new CR2032 battery.
Ensure all contacts and insulators are put back in their original positions.
Replace back cover plate to watch.
CAUTION: Before replacing the battery, make a note of any custom settings. Replacing the battery resets the firmware of the fitness device and restores the device to factory settings. Workout data and custom settings may be deleted in this process.