ac adapter is way too hot..

Hello!

I`m really scared of buyin a new ac adapter again. Old one just started not to work like two weeks ago. I went to fix it but they asked me 80-100$ for doin it. So I just bought a new one - universal ac adapter for 60$.
It gets really hot. It`s not even pleasant to touch it. I guess it`s too hot. I guess my old one overheated too.

What is the best thing how to reduce ac adapers temperature?
What is the recommended temperature for ac adapters?

 

I believe the operating temperature of most universial AC Adapters is 0-40C.


Here is a thread that might interest you :
http://forum.notebookreview.com/showthread.php?t=142816

 

ohh.. i guess mine is a lot more hotter than 40C..btw this universal adapter i bought just today..and my battery was 0%..completely empty..im doin full recharge now..maybe when the battery will get to 100%.it will cool off..i hope

 

I've never encountered an AC adapter that was cool to touch. Seriously, from the 65W to the 120W i have available, all get ridiculously hot.

To quote a post from that thread:

 

I let mine sit below my notebook cooler but yes it does get quite hot..

 

My original one from Toshiba gets very hot too, I mean unpleasantly to touch also, and I've been using it for few years and still running fine. I think fabarati is right, I've used many laptops, and all the adapters get pretty hot.

 

Adapters, in my experience, can get quite hot, to the point of being painful to touch for more than a few seconds. A lot of excess heat is put off by the conversion from AC to DC current, so it's not that unusual. If the laptop doesn't seem to be charging or you're getting power fluctuating so that it seems to flicker on and off, you might have a problem with the adapter. If you happen to keep losing adapters to overheating, you might have a short in the motherboard power supply.

 

Mine burned me (second degree burns... sue dell?), lit a piece of paper on fire, melted my aircon controler... >.< now sits on a air cleaner to keep it cool

 

How much watt has your current universal adapter?
How much watt had your original adapter which was included by your notebook?
Maybe your current AC-Adapter is under-engineered.

 

I have a 220watt power adaptor for my Voodoo, and it does not get very hot.
The thing is literally the size of a brick, so it has enough heatsinks in it to stay cool under full load from the processor and such.

K-TRON

 

I wouldnt worry about it. As said, they all get hot. When I had my VAIO about 3 years ago, mine was a brick and got so hot that i smelled burning plastic at times. My Last laptop, that i had for a year, a Toshiba- the power block was decent, it didnt get too too hot, you could still touch it easily without pain. Now, my HP one, is much smaller than ive ever seen. It stays cool actually most of the time (compared to others), but the temp. depends on the time of usage.

 

Both my nx9420 HP`s adapter(90W) and my Sager 5791`s adapter(120W) get hot under heavy load. Normal .

 

yeah..i searched this thread in other forums..
i guess its quite normal if it gets really hot..since I charged my batery to 100% it got betteer.

 

The AC adapter on my t61 and nc8430 never get hot.