hmm guys, may I know what's the max uptime of your phone if there's frequent smsing activities?

recently my battery is swollen, I've bought a new 1, but there's still some issues with the total time that it can serve me.. with the new battery, i can only last 1 day, not even more than that... i'm quite sure that e71 can last longer than that, cos last time when i first bought it, it can last me for 2 days+ atleast...

any idea fellow sifus?