Skip to main content

Replacing the Speed Sensor Battery

The device uses one CR2032 battery. The LED flashes red to indicate a low battery level after two revolutions.

  1. Remove the sensor from the sleeve.
  2. Locate the circular battery cover Callout number 1 on the front of the sensor.

    Sensor battery with callouts
  3. Rotate the cover counter-clockwise until the marker Callout number 2 aligns with Callout number 3.
    NOTE: Some models do not have the same markers. You still have to rotate the cover counter-clockwise.
    TIP: You can use the sleeve to improve your grip on the case.
  4. Remove the cover and the battery Callout number 4.
  5. Wait 30 seconds.
  6. Insert the new battery into the cover, observing polarity.
    NOTE: Do not damage or lose the O-ring gasket.
  7. Align the cover markers Callout number 2 and Callout number 3.
    NOTE: The cover must be flush with the case of the sensor.
  8. Rotate the cover clockwise until the marker Callout number 5 aligns with Callout number 3.

    The LED flashes red and green for a few seconds after battery replacement. When the LED flashes green and then stops flashing, the device is active and ready to send data.

GUID-3B99F80D-E0E8-488B-8B77-3D1DF0DB9E20 v5
November 2024
© 2019 Garmin Ltd.