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Is a laptop cooler really effective and useful?

I have a Dell laptop - it doesn't have any problems but was wondering if a laptop cooler would be beneficial in any way?

Some example coolers:

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I have a Dell m1530 and without a cooler it runs at 89C consistently. With a laptop cooler I'm running more at 50-60C. – KronoS Apr 29 '11 at 3:47
up vote 7 down vote accepted

Yes, a laptop cooler can help. Running hot can lead to performance problems and shorter equipment life. I don't have first hand experience with heat problems in an actual laptop (yet). An older laptop I have does tend to run very hot (too hot to touch on the underside) if I don't use a cooler, but with the cooler it stays reasonably cool.

The most recent example of equipment problems due to excessive heat I've seen was in a wireless router I have. A few months ago some stuff was put next to it, blocking its ventilation. It started having problems - frequent drop outs, for example. When I checked it out, I found it was extremely hot to the touch. I moved it to a place where it cannot be surrounded with stuff and it has operated without problem since.

A side benefit is that the laptop cooler I have sits under my laptop and allows me to change the angle of the system. This makes for better ergonomics. (Already having eye problems and CTS, I appreciate that.)

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yeah. remember that it also implies in your battery health, since Li-Ion batteries hate heat. – kokbira Apr 20 '11 at 19:09

Yes, but the effectiveness varies by the design of the cooler. See this review of the Cooler Master NotePal U3 at Overclockers Club for a comparison of laptop coolers; all of them yielded lower temperatures than a laptop being placed directly on a desk.

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But I don't overclock my laptop. So what extra benefit I will see if I buy a cooler for laptop. What is benefit to buy and use laptop cooler even if I'm not facing any heating problem with my laptop. – metal gear solid Apr 20 '11 at 4:13
The life of the system could be extended by keeping overall system temperatures down. – bwDraco Apr 20 '11 at 4:34

I guess it also depends on were you are located. I used to live in a very "warm" country and it made a huge difference for me in durability when I started to use coolers.

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