Having purchased the $749 model, it came standard with the 6-cell battery, which most people would like because of the extra battery life. I on the other hand feel that I do not always need that amount of power and would sometimes prefer to opt for the smaller, and slightly lighter 3-cell battery.
Sadly they are not yet available for purchase. I had called HP to attempt to place my order, but was simply told that because it was a new item the batteries are not yet available. While I did not dig to deep with the representative that I spoke with, I was informed that she did not have any timeframe as to when they will be available.
Personally the extra power is nice, but a battery that sits flush and takes an albeit small amount of weight off would be nice to have. One positive thing about the larger 6-cell battery, aside from the obvious longer life is that it raises the notebook a little and makes typing a little nicer.
