Instructables

Is it OK it the power supply for a laptop gets hot, almost to hot to handle? like is this normal?

the power supply that came with my laptop(Acer) becomes hot while the computer is on and I was wondering if this is normal or not good etc. thanks.

My laptop charger usually gets too hot to handle when the laptop's battery is near empty. That is most likely just the laptop drawing near the rated current of the power supply.

This is a fairly old question but I have a rather unique solution. Buy a good laptop fan just for the power brick, it won't provide so much cooling that it will cause damage but will keep it running at a reasonable temprature. I own both an ASUS ROG gaming laptop and an Alienware one as well. Both power supplies have heat issues.

Personaly I use a box fan leaning at an angle against the wall and I have made a support to hold the psu against the fan. This keeps it very cool.

The picture I attached is an older setup in which I used the power cables size to hold it on the fan! (also the psu has feet which fit in the fan notches

power.jpeg

The power adapter is getting so hot that you can't touch this, it sounds to me that this might be beyond normal, though some people are more sensitive to temperature than others, and you have an overheating problem.

It could be some strange that you got a bad adapter but how are you cooling your laptop? And are the fans in the laptop running?

If you do have to buy a new charger,

This is a great way to save money in the long run and a good investment as well.

http://www.eachbattery.com/

famjad3 years ago
A fan is connected at the top of the processor slot so as to ensure normal temperature. Badly, if too much dust is stored in it, it starts malfunctioning. You may experience that your laptop gets hot simply because the fan fails to cool down your processor. With the help of a hardware engineer or product manuals, remove the dust stored on your processor fan.
Source: http://backspacetab.com/2011/04/15/laptop-gets-hot/
IdealL3 years ago
If I were you, I would replace the battery. It could lead to an explosion or just fry your computer.
seandogue5 years ago
If you're playing graphically intensive games on the machine, it may be that your graphics card is the culprit. There are commercial "laptop coolers" (a thermally conductive pad wrapped ontop of a fan-cooled or fan/peltier-device-cooled aluminum substrate) available, and for those capable of diy, you could make one yourself.
Joe Martin5 years ago
Yeah, Most times the case is that the smaller the power pack the hotter. My eee one get roasting hot lol
nfarrow5 years ago
You also may want to check your battery in some cases the power supply is getting hot do to continues powering to change a died battery.
gmxx5 years ago
It is normal for a power supply to become hot. However, if the power supply is getting to the point where it is almost too hot to handle, it is most likely shorting or malfunctioning. I had an HP power supply that did the same thing... eventually the wires near the plug started sparking, near my leg... that was not a good day.