Generally, the charger is damaged and the razor itself is damaged.
1. The charging head is damaged. Replaceable charging head battery charge, see if it can be charged, confirm the damage needs to buy a new charging head.
2. The internal power supply circuit of the shaver is faulty. There are short circuit points or internal electronic devices have common faults and cannot be charged properly. The common failure of the electric shaver itself can only be repaired, and you can find the millet after-sales or local maintenance center.
First check the charger and its socket, use a multimeter to measure whether the charger is normal, if the charger is broken, change a charger, if the charger is no problem, and then open the razor back cover to open, from the charging port with a multimeter measurement, to step by step test, slowly find the reason, in general, in addition to poor contact, is the electronic components burned