70606Views14Replies

Author Options:

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

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.

Comments

The forums are retiring in 2021 and are now closed for new topics and comments.
0
thermoelectric
thermoelectric

Best Answer 11 years ago

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.

0
araceliS
araceliS

Answer 6 years ago

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
0
danwat1234
danwat1234

Answer 5 years ago

I also have a ROG (Republic Of Gamers) Asus gaming laptop, a maxxed out G50VT with an extreme CPU. When I'm crunching on my CPU and the GPU, the AC adapter is basically completely maxxed out to it's 120 watt rating. It gets very hot. If on carpet it'll get somewhat burning hot. Like you can't touch it for more than a few seconds before beginning to get burned.

It hasn't quit yet, I'm not worried. Not smelling. Genuine AC adapters for older laptops are cheap on Ebay.

But the aftermarket AC adapters aren't as tough, I've gone through a few of those. Not only are the electronics not as resistant to high temperature, but also the cord going to the laptop can, over time, get an open in it so I had to cut off the cord near the tip that goes into the laptop and wire in another tip to the end of the cord.

But genuine AC adapters from Asus (Delta Electronics) are tough, nothing to worry about. Also Flextronics makes genuine adapters.

0
Velvex
Velvex

1 year ago

I have a ROG STRIX labtop it was supposed to be new but the headphone jack went out 2 days after I did my first Boot up both the AC adapter and the battery on laptop get super hot like to hot to touch but according to the temperature reeds on the Republic of Gamers Armory my CPU and GPU never go over 60 Celsius

0
panchalsmit312
panchalsmit312

Reply 9 months ago

i also have asus strix g531 my adapter gets hot compare to my old lenovo laptop
is it normal? and is it safe to leave my laptop whole night for charging?

0
nfarrow
nfarrow

11 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.

0
danwat1234
danwat1234

Answer 5 years ago

The battery has a chip in it so the management chip in the laptop won't continually charge the battery at a high rate, at most it would be a continuous trickle charge if the battery is dead. Since it's not accepting a charge, any power going into it would turn to heat. So unless the battery is really warm, that is not a big draw on the AC adapter.

0
IdealL
IdealL

9 years ago

If I were you, I would replace the battery. It could lead to an explosion or just fry your computer.

0
danwat1234
danwat1234

Answer 5 years ago

If the battery is old, it won't draw any more power (won't work the AC adapter harder) than a new battery. If anything it would draw less because the internal resistance of the battery is higher.

0
Orangetiki1
Orangetiki1

5 years ago

I know personally my power charger gets very hot. As in I don't want to pick it up hot. I also hear a faint crackle. That, I am told, is due to a bad capacitor and will fail soon. This is a 2008 Mac laptop. I am debating on replacing the charger or just get a chromebook since I use a tower at home for most of my work. I am also getting a service battery warning and this is my second battery.

I agree that you can prolong use with some cooling system but it will be something you should handle in the future. Check everything that is mentioned here and see what you can do. And of course back up your system if you your computer does fail while you are working.

0
famjad
famjad

9 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/

0
seandogue
seandogue

11 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.

0
Joe Martin
Joe Martin

11 years ago

Yeah, Most times the case is that the smaller the power pack the hotter. My eee one get roasting hot lol

0
gmxx
gmxx

11 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.