Is this normal? Battery related

[Muscle]

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My mbp is 1 week old. It is the 15" i7 2.66 4gb ram 500gb HD@7200rpm

noticed that at 100% I am only getting a tad less than 4 hrs of juice when continuously watching HD YouTube clips with caffeine on. Is this normal? I was hoping to get more. Also I'm getting a bit over 6 hrs of juice if I'm just browsing the web and checking email, again with caffeine on.

In addition, is there a major diff bt the moshi and marware keyboard guard?

 

[GGJstudios]

This should answer most, if not all, of your battery questions: Apple Notebook Battery FAQ

Note the section on BATTERY LIFE FROM A CHARGE.

 

[jclardy]

What level screen brightness are you at?

You should download gfxCardStatus if you haven't already. This will show you which graphics chip your mac is currently using.

I have found that if you are using the nVidia 330m all the time you will get much lower battery life in this model, around 5 hours. If you use gfxCardStatus and set to Intel only you can get around 8 depending on your screen brightness.
I usually keep mine around 50%-70%.

 

[Hisdem]

4 hours of flash streaming on a Mac considering HD video sounds amazing

 

[Muscle]

This should answer most, if not all, of your battery questions: Apple Notebook Battery FAQ

Note the section on BATTERY LIFE FROM A CHARGE.

Thank you, was a good read!

What level screen brightness are you at?

You should download gfxCardStatus if you haven't already. This will show you which graphics chip your mac is currently using.

I have found that if you are using the nVidia 330m all the time you will get much lower battery life in this model, around 5 hours. If you use gfxCardStatus and set to Intel only you can get around 8 depending on your screen brightness.
I usually keep mine around 50%-70%.

Thanks for the handy app! is it possible for my mbp to run hd videos on youtube smoothly on the integrated GPU i/o the nVidia?

4 hours of flash streaming on a Mac considering HD video sounds amazing

I kinda lied it's closer to 3.5 hours

Coming from a lifetime PC user I am extremely satisfied with the performance of my MBP. But CNET's review seems to rank the battery at a tad less than 6 hours with continuous video playback...is this b/c I am flash streaming?