Needs help: x220 battery life ,6 Cell

Last week ,I received my x220.IPS,i5-2520.
But shortly I found that the battery life is too short.I have seen many reviews said that they tested their x220,and their machines will last for 7 hrs or more if just playing viedos or browse pages.
And my poor laptop,if I only use it for internet iexplore and MSN,it will only last for 3 or 3.5 hours,the battery mode which I choose is energy saver,and the brightness or screen is 9,I don't know if there is somthing problem with my battery or laptop...
And other thing is that when i charge my battery ,from 99% to 100%,it will take half an hour to comlete that ,although it display "charge will be comlete in 2 min."...
I use the everest to test my battery ,and the battery consumption is 0%,but the designed capacity is less than the full charge capacity....is that normal?
Plz help me .....LoL....

Screen brightness 9 is pretty bright and will drain the battery quicker but off hand something fishy does seem up with your battery.   Hopefully someone else will know more
~Novak
X220~i5 2520M~8GB~Vertex2~IPS~Win7Prox64~ It's amazing.

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