When I use my advent 7047 laptop(it's a rebadged medion laptop), I usually run it off the mains.
prob I have is after a while(can be after 5 mins or sometimes not until after about 15 mins), the laptop beeps and it switches between battery and mains power, beeping each time it does so. I think it may be something to do with the heat the power supply generates as it gets very hot quickly so does the connection I plug into the laptop(the metal part of the plug).
I know it's not unusual for power supplies to get hot but it gets really annoying when it keeps beeping every second and switching back and forwards.
If I unplug the lead from the laptop and leave it for about 10 mins, the power supply cools down and is ok for a few mins when I plug it back in.
Would my assumption about the heat be correct and if so, what can I do about it. I can't just run it off the battery as it only seems to last about an hour/hour and a half just browsing the net and playing music.