I am only seeing 1:50 of estimated run time on a new MacBook Pro battery. Problems?

Question

I have bought brand new MacBook pro 15-inch model with highest specifications in this June. I have also installed newest Mac OS, Lion.

However, how it could be strange, when cable is not plugged it, battery shows me that there is only max 1:50 of vitality (nevertheless, despite the fact that there is written in the official web page (http://www.apple.com/macbookpro/specs.html) that the battery work is "up to 7 hrs wireless web".

I do not know what the problem is, is this OS problem or the issue with the battery.

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Update:

Okay, after all your recommendations it shows me almost 4 hours on 98% of battery. Here is the screenshot (is it normal to have 4 hours with these processes running?):