First, get the after-sales network of the Bluetooth brand to help check whether it is maintenance or battery replacement.
Second, get a special place to sell Bluetooth, they are connected with the maintenance of Bluetooth, maintenance costs are cheaper than brand after-sales outlets, but the quality of repair is not good brand after-sales. When using a Bluetooth headset, you can use Bluetooth correctly according to the use of its manual, and improper use will cause Bluetooth loss in advance.
It is estimated that there is something wrong with the internal circuit, and the charging current of the Bluetooth headset is generally not more than one or two hundred mA, and the current is not large, which will not cause heat. Charge it. If it breaks, it doesn't work. If it works, keep using it. I can't fix this on my own.