I remember getting approx 6 hours of use when I originally bought my NB305, and that was with conservative power useage settings. 18 months on and it has reduced to approx 4.5 hrs
Well, my notebook battery died after 2.5 years of usage… as far as I know any battery will start losing the performance after being charged 400-500 times. So it looks like 4.5h is ok after 18month of battery usage.
Sorry not owner of this new battery so cannot provide any statistic for the PA3734U-1BRS