A: It could be a short circuit in the wires
1, first of all, you can check whether the charging base is normally powered on, if it is not the reason for the charging base, it may be due to the lithium battery; The internal structure of the electric toothbrush is relatively simple, and the manual ability can be replaced by buying the same type of battery by itself;
2, if the reasons for the charging base and battery are excluded, it may be due to the problem of the motor and the motherboard, because this part is the core part, the replacement method is not correct may affect the future use, these suggestions to find after-sales service professionals to operate, or replace a new one;