OP, not to be rude, but do you REALLY need the brightness to be at full? I mean, half brightness is plenty in any lighting condition, and for me, I actually keep it at a little bit below half.
I think the battery life is wonderful, I can pretty much have it off the charger for 2 full working days before it needs a charge, and even then, it's only at 25% or so. I usually get around 1 Day 6 hours on Standby, and about 5-6 hours Usage.