Th reason using cooler pads and the dust wiping is not going to help is because the system is getting hot because of the battery. So only way to stop being heated is to stop it from getting any supply.
I am afraid, I have to disagree. I don't know about your scenarie but in my case, it is not the battery that is making the system hot. In fact I haven't seen a laptop where battery is the primary source of heat. It is the processor (and the GPU) that generates heat. In my case, the vent for the fan which cools the processor is damn near the battery and when I do intensive work on my lappy, the thing throws out very hot air and as a result, the battery also gets hot. Fortunately, the colling pad I am using has an adjustable fan. So what I have done is that I have set it in a place so that the battery is the primary target of its cooling. And believe me it does make a differnce. How can I tell???. Well just by touching the battery when the fan is on and when it is off. THere is a huge difference in the temperature.
Another good point is that considering the lifespan of 1 year, laptops are more expensive compared to desktop. I mean 1 year battery can fail after or just two days before warranty. Buying new battery is also not something one can do randomly.
I think one year is a bit too less for a laptop battery to work properly. And yes they are expensive so its not pocket-friendly to buy them randomly in short periods.
I hope manufacturers make better batteries than can last longer.
I don't know what else can we do about battery life and power failure. I am going to ask this in local forums and groups to get idea of how things work here.
I have heard people talk about a lot of things like when your laptop is turned off, eject the battery and store it separately, OR, make sure that you don't turn off your computer (at night) when the battery is still above 90 % charged. I personally think this stuff is just rubbish. Taking so much care isn't going to make much difference if at all.
On my Dell laptops the battery charger is constantly connected, and I have no temperature nor battery ageing problems. 
And how old is your Dell laptop or it's battery?
By the way yordan, How true is this concept of system heating due to graphic cards? I heard that machines with Nvidia graphic cards dissipate more heat compared to intel graphics cards. Is that true? or is it just assumption from people who look nvidia card on intel board as mismatch?
I do believe in the fact that dedicated grpahics does produce extra heat. The reason is that when you go for high quality gaming laptops, you would find that some of them have two fans. One for the CPU and One for the graphics chip. THis clearly states that the GPU does produce its own heat that is in addition to the heat produced by the CPU.
But I don't beleive in Nvidia and intel being a mismatch. Yes, there were a few laptop series from dell and hp (I don't know about others) where the Nvidia chips literally burnt to death with extensive usage. The dell was lattitude D630 and the Hp was DV something. THat was quite a famous case and I think nvidia had issued some official apology or something for those chips. But other than that, I don't think there is any differnce in heat produced by nvidia and Ati chips. And for that matter, they both perform almost the same with intel processors. But again, this is my personal opinion and might be far from reality.
I don't know if there are any good AMD processor based laptops with no battery problem. So far never tried them and no idea of it at all.
My current laptop has AMD processor. And as a matter of fact, it does prduce a lot of heat. Much more than its intel couterpart. But I have experienced that it can tolerate higher temperatures as well so there is no performance drop at higher temperatures. THe worst thing with production of more heat is that even though the processor itself might tolerate it, but other components might not be so heat resistive. For instance, batteries are fairly vulnerable in this regard and they do get damaged by extra heating. And this phenomenon is more pronounced in AMD based systems.
I get that dissipation of heat in general. My question was related to Nividia. I heard that laptops with nvidia card shows more heat compared to any laptop without it. There are hardly any laptops sold these days without the nvidia driver but still, It's hard to see that there seems to be the observation.
Well if you are comparing a dedicated graphics chip with integrated CPU graphics, then I think it should be quite obvious that dedicated chip does produce its own heat. And so the total heat produced by a laptop with dedicated graphics will definitely be more than a similar laptop with integrated graphics. However, if you compare two laptops both with dedicated graphics, one with nvidia and other with ati, i think you would hardly notice any difference in the amount of heat produce by the two.
, Please 
