The laptop would pull the current it needs. If it needs 3 amps, it will use 3 amps. Just because the power supply supplies 4 amps doesn't mean the laptop is getting that amperage.
Generally, where there's heat, there's resistance.
Originally Posted by arsenalbates
I think that it may be caused my the universal adapter that i am using as the end plug dont fit in the socket 100% and is fairly loose.
I think you answered your question. See if you can get an end plug that fits better. You want a nice tight fit for the best connection.