TomTom on Twitter: "@MFergusonAuthor Hi, Watch batteries not holding charge can sometimes be caused by the operating software misreading the charge in the battery. Please apply the Factory Reset described in this
Losoncoer Battery 350mah For Tomtom Runner 3 Gps Fitness / Tomtom Runner Cardio 3 + Music Watch Batteries +free Tools - Digital Batteries - AliExpress
How to replace the battery on a Tomtom Runner 3 / Spark 3 - YouTube