![Garmin HRM-Pro, Premium Heart Rate Strap, Real-Time Heart Rate Data and Running Dynamics Black Bundle with 5 Extra Batteries (6 Items) - Walmart.com Garmin HRM-Pro, Premium Heart Rate Strap, Real-Time Heart Rate Data and Running Dynamics Black Bundle with 5 Extra Batteries (6 Items) - Walmart.com](https://i5.walmartimages.com/asr/0e4e360b-d494-4706-a6d7-7fed1de45fcd.1d802abf83c36c1e44ea9780969ef06f.jpeg)
Garmin HRM-Pro, Premium Heart Rate Strap, Real-Time Heart Rate Data and Running Dynamics Black Bundle with 5 Extra Batteries (6 Items) - Walmart.com
Garmin Fenix 3 - Garmin: Replacing the Battery in your Heart Rate Monitor ( HRM) The CR2032 batteries in your HRM-Run, HRM-Swim or HRM-Tri straps will last approximately 18 months, depending on use.
![HRM Dual - plastic battery cover separated from screws - Accessories & Sensors - Running/Multisport - Garmin Forums HRM Dual - plastic battery cover separated from screws - Accessories & Sensors - Running/Multisport - Garmin Forums](https://forums.garmin.com/resized-image/__size/320x240/__key/communityserver-discussions-components-files/128/IMG_5F00_0504.jpeg)