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.
Garmin HRM Tri / Swim / Run Replacement Rubber Cap (3D Printed) | Shopee Philippines
Garmin HRM-TRI & HRM-SWIM In-Depth Review | DC Rainmaker
Tagged with heart rate monitor – Chris Worfolk's Blog