›Product Support Getting Started FAQs Tips Video Tutorials Downloads Manuals Contact Us HomeSupportRCX5 Tour de FranceFAQsHow do I change RCX5 battery? Selected Product RCX5 Tour de France (change) FAQs How do I change RCX5 battery?RCX5 uses battery type CR2032. Follow these instructions to change the battery. Polar Authorized Service Centers will help you with any questions. Related documents:Battery Empty in The Polar Heart Rate Sensor Was this helpful? Yes No