Heart rate monitor watch battery replacement | watch, battery | Replacing the battery in a polar FT1 watch | By Techsmart Felixstowe | Facebook
![ProDive Batery Kit for Polar FT4 FT7 Heart Rate Monitor Sports Watch, Replacemen Service Spare Set: Amazon.co.uk: Sports & Outdoors ProDive Batery Kit for Polar FT4 FT7 Heart Rate Monitor Sports Watch, Replacemen Service Spare Set: Amazon.co.uk: Sports & Outdoors](https://m.media-amazon.com/images/I/51WWpod80iL._AC_UF1000,1000_QL80_.jpg)
ProDive Batery Kit for Polar FT4 FT7 Heart Rate Monitor Sports Watch, Replacemen Service Spare Set: Amazon.co.uk: Sports & Outdoors
![Polar H10 won't connect unless I remove red rubber washer. Is your battery cover flush? Using CR2025. : r/Polarfitness Polar H10 won't connect unless I remove red rubber washer. Is your battery cover flush? Using CR2025. : r/Polarfitness](https://i.redd.it/kepzklhz0cx81.jpg)