Check to make sure that the provided AC adaptor or charger cable is connected.
Check to make sure that the provided AC adaptor or charger cable is being used correctly.
The following conditions can cause unstable power supply and make it impossible to achieve a full charge: Using a non-specified USB port to supply power, using an extension cable with the charger cable, etc.
Check the charging terminal or charger cable connector for dirt or other foreign matter.
Use a clean, dry cotton swab or cloth to clean off the charging terminal and charger cable connector. Next, reconnect the charger cable and try charging again.
Occasional cleaning of the charging terminal and charger cable connector is recommended.
Do not try to charge the watch in a location that is extremely cold or hot.
Since charging under temperature extremes can cause deterioration of the built-in battery, charging will stop automatically to protect it. Charging will restart automatically when normal temperature is attained. Charging within the following temperature range is recommended: 10°C to 35°C.
