In this video, I demonstrate how to replace the battery in a Polar FS1 Heart Rate Monitor (HRM) watch. The battery is a CR2025.
This is how to replace the battery in a Polar RS200/RS200sd heart rate monitor watch. The battery is a CR2032. Be aware that ...
A blast from the past. When I replaced battery and chest strap, worked like new. Year in date showed 1993.