HRM-Pro Plus Owner's Manual - Replacing the Heart Rate Monitor Battery
Support: Changing the battery on a Garmin Heart Rate Monitor - YouTube
I've replaced the battery of HRM pro, is this correct? I saw that bulge after I fitted the cover. I don't think I can swim with this now. Can someone give me
Best heart rate monitors for running and triathlon - 220 Triathlon
How long do HRM-Tri batteries last? – Chris Worfolk's Blog