There are times the Garmin Approach® CT10 golf sensor battery needs to be replaced. See the guidelines below demonstrating how to replace the battery.
For this process, it is recommended to leave the sensor attached to the golf club. It may require a high amount of torque to remove the battery cap and we recommend using the Battery Cap Tool.
With one hand, firmly grip the white mount of the sensor.
With the other hand insert the cap removal tool, twist the black sensor cap counter-clockwise until it can be removed.
Remove the battery from the black sensor cap.
Replace the battery with a new CR2032 battery.
NOTE: Ensure the + icon is face up and pointing away from the sensor cap.
Place black sensor cap back on the white mount and twist with the tool clockwise until it locks.
While your device will notify you when the battery is low or critical, the battery life can be checked at anytime. Select your device below and follow the steps outlined.
NOTE: The sensor must be actively paired to view battery life.
From the time of day, press OK.
Select Golf Settings.
Select Club Sensors.
Select desired connect club sensor.
Select About.
On the About screen, one of the fields will display: Battery and provide the current level as New, Good, OK, Low, or Critical.
With the Approach S20 watch powered on, Press OK.
Select Settings.
Select Club Tracking.
Select Club Sensors.
Select Paired Sensors.
Select desired connect club sensor.
Select About.
On the About screen, one of the fields will display: Battery and provide the current level as New, Good, OK, Low, or Critical.
With the Approach S40 watch powered on, Press and hold the button to get to the Main menu.
Touch Golf Settings.
Scroll down and tap Club Sensors.
Touch on desired club.
Touch on About.
On the About screen, one of the fields will display: Battery and provide the current level as New, Good, OK, Low, or Critical.
With the Approach S44 or S50 watch powered on, Press and hold the top button
Tap Settings.
Tap Golf Settings.
Tap Club Tracking.
Tap Club Sensors.
Tap desired connected club sensor.
Tap About.
On the About screen, one of the fields will display: Battery and provide the current level as New, Good, OK, Low, or Critical.
With the Approach S60 or S62 watch powered on, Press 
.
Tap Settings.
Tap Sensors & Accessories.
Tap Club Sensors.
Tap Paired Sensors.
Tap desired connected club sensor.
Tap About.
On the About screen, one of the fields will display: Battery and provide the current level as New, Good, OK, Low, or Critical.
With the Approach S70 watch powered on, Press .
Tap Settings.
Tap Sensors & Accessories.
Tap Club Sensors.
Tap desired connected club sensor.
Tap About.
On the About screen, one of the fields will display: Battery and provide the current level as New, Good, OK, Low, or Critical.
For more information on the Approach CT10, see the owner's manual.