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
8RS00 TomTom GPS watch. User Manual 1_130320 First draft Runner UG TomTom BV
TomTom Runner+HRM
8RS00 TomTom GPS watch. User Manual 1_130320 First draft Runner UG TomTom BV
Replacement Battery New 3.7v 280mah 1.04wh 3 Gps Watch Case - AliExpress