1. There is something wrong with the power battery. This problem is mainly caused by the life damage of the battery itself. The battery cannot be charged normally. The battery power is low, and it enters the low power protection state. It is recommended to plug the speaker into the charger first and charge it for two hours. It will open again in two hours. If it cannot be turned on, it is recommended to replace the battery.
2. There is something wrong with the charging circuit module. This problem will cause the battery to fail to charge. Long-term battery loss state. In this case, even if the battery is changed. It will also be unable to charge. In this case, it is necessary to remove the circuit board and check the charging circuit.