Garmin Heart Rate Monitor Battery Change - not pairing with Forerunner / GPS Watch - Better Sore Than Sorry
Garmin HRM-Pro Battery Replacement - YouTube
Support: Changing the battery on a Garmin Heart Rate Monitor - YouTube
Amazon.com: Band for Garmin Forerunner 55, Quick Release Band Replacement for Garmin Forerunner 158 / Forerunner 55 (No Tracker, Replacement Bands Only) : Electronics
Amazon.com: Garmin 010-12955-00 HRM-PRO, Premium Heart Rate Strap, Real-Time Heart Rate Data and Running Dynamics : Sports & Outdoors