The CR2032 battery in Garmin heart rate monitors is praised for its capacity to sustain the device's operation over extended periods, usually around 3-4 years depending on usage patterns. The design of Garmin's heart rate monitors allows for simple battery replacement by the user, negating the need for professional assistance and thus.. NOTE: The battery door must be flush with the heart rate monitor module. Rotate the battery door clockwise until the marker points to locked. Replace the sleeve.
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Learn how to change the battery on your Garmin Heart Rate Monitor that has a removable module.For more help, visit http://support.garmin.com. Replacing the HRM-Dual Battery Use the included screwdriver (Torx T5) to remove the four screws on the back of the module. NOTE: HRM-Dual™ accessories produced before September 2020 use Phillips #00 screws.