Replacement Battery New 3.7v 280mah 1.04wh 3 Gps Watch Case - AliExpress
TomTom Runner 3 Cardio+Music+Headphone - Small | 21RUN
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