This situation should be that the electronic original device in the charger has a short circuit or burning phenomenon. You can't fix it by yourself. Because you have no tools, no accessories, and you don't really understand electrical principles. It's better to take it to an electrical repair shop. One or two accessories at the most. It can't all burn out. It won't cost much. It's not expensive to buy a charger if you have to.
It's probably wired and can be fixed
The two-wheel battery car charger rang when plugged in, it is best not to use, check first, charging accidents often occur, safety first!!
The charger rang while charging, and the chance of repair is not good.
Yes, it means the problem can't be fixed