Battery life difference between A2Xp series and A30P?

[imzjustplayin]

I'm looking at the IBM tawbook.pdf file and it says that the A30p gets like 2.5hours of battery life while the A22m gets 3.5hours of battery life and the a22p getting 4 hours of battery life. The A30p has a six cell just like the A22m yet gets a full hour less and I'm wondering why. I'm also wondering why isn't there an option for a 9 Cell battery for the A30p laptops. How could there be an hours difference in battery life if they're both running pentium 3s?

[ajkula66]

The difference would be the type of screen used...I'm certain that it takes a lot more juice to run a FlexView on A30P when compared to regular UXGA an A22p...and there is no extended battery for the A3 series...

Hope this helps...