Same method applies to any garmin sensor.
Garmin edge 520 speed sensor battery.
A walkthrough of how to change the battery on a garmin speed sensor.
Replacing the speed sensor or cadence sensor battery.
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Get help garmin support center.
Replacing the heart rate monitor battery.
Place and hold the speed sensor on top of the wheel hub.
Replacing the speed sensor or cadence sensor battery.
Get help garmin support center.
Garmin recommends you.
Battery type user replaceable cr2032 3 v battery life approximately 12 months 1 hour per day operating temperature range from 20º to 60ºc from 4º to 140ºf wireless frequency protocol 2 4 ghz ant wireless communications protocol water rating.
Get help garmin support center.
Edge 520 owner s manual.
Battery type user replaceable cr2032 3 v battery life up to 4 5 yr.
Caring for the heart rate monitor.
Speed sensor and cadence sensor specifications.
Replacing the speed sensor or cadence sensor battery.
Replacing the heart rate monitor battery.