i plugged the battery charger in,worked fine for a while,then i smelt something.the jack plug has ov

i plugged the battery charger in,worked fine for a while,then i smelt something.the jack plug has overheated and melted inside the socket.the battery had ran almost down,but today it came on for a few seconds,so the laptop is still working.i used a freinds charger and it didnt power up,there is a smell coming from the jack plug socket

It sounds as if there may be a short inside the case. The socket itself does not normally smell, it is more likely to be a burned out component in that area.

I would recommend that you backup any important data, and then get someone to have a look at it. If it is still under warranty, contact the manufacturer or shop, if not, try a local PCIQ repairer, but be warned, if a component has burned out, it will not be a cheap repair.