MBP (2010) is extremely hot when charging

I just bought a new MBP 15' and I found it becomes very hot when charging --- case is closed. And I can hear the fan is working intermittently. I open the case and let it charging, then the fan stops working and the case is cooling several somewhat. In my old MBP (15' 2009 )model, no this issue. I always close the case and let it charge overnight. In the morning I can feel the case is as cold as ice. Can anyone explain to me is this normal or how can I adjust ? Does Apple apply some new technology in battery? Thanks in advance.

+and finally adjust the fan control+
I hope you're not using smcfancontrol or some other utility that changes the normal operating parameters Apple set for the fans ? They have been know to cause problems and I strongly advise against using things like that ... (Problems such as; running the fans at a higher speed for much longer than they are designed for and so the motors burn out; the temperature sensors getting stuck/confused and not coming on as they are supposed to, causing extreme overheating etc.)
If it's asleep then nothing should be running at all ...

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