My vaio E series laptop goes into discharging after a few minutes and shuts down even though its plugged in to a charger.This has been happening for a few months now. Initially two of my chargers literally caught fire while charging,so I thought my charger was broken (since both were a local and cheap ones)so I replaced the charger with a new original one only to find the same problem. Then I was quite certain that there has to be something wrong with the battery but then I replaced the battery too. I even tried using it with the battery removed, It still goes into discharging while plugged in. But the problem still persists. What do I do here? Is there something wrong with the motherboard or something to do with the battery itself? I also use the same outlet to charge my other laptop and that works perfectly fine in case you're wondering if there's a problem with the electricity outlet.