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
Garmin HRM-Pro Battery Replacement - YouTube
Review: Garmin HRM-Pro Plus | road.cc
HRM Soft Strap | Universal Replacement for Mo-Fit, Most Garmin, & Sele – Engine Design Group