Our user manual states that if the battery is not used for a long time, it should be charged before use. When the battery is in a low state and has been left unused for a long time, the charging speed will be very slow. Please use the official charger and cable from Quest or the cable we provided to charge it for about 3 hours and check the position of the indicator lights. During charging, please do not magnetically attach the B2 to the headstrap.
If the indicator lights are still not functioning properly during charging, please refer to 【Abnormal Light】 . After troubleshooting, contact our after-sales customer service for further assistance.