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
MPF Products 280mAh PP332727 Battery Replacement Compatible with Tomtom Spark 3 GPS Activity Tracker and Fitness Watch
Original Size Replacement Battery For Tomtom Spark 3 Battery High Quality 280mah Pp332727 - Mobile Phone Batteries - AliExpress
MPF Products 280mAh PP332727 Battery Replacement Compatible with Tomtom Spark 3 GPS Activity Tracker and Fitness Watch
3.7V 280mAh Rechargeable Li ion Battery For TomTom Spark 3 TomTom Spark Cardio II Smart watch High Quality Replacement|Replacement Batteries| - AliExpress