Is it possible to have battery draining faster when using wifi than when using 3g?? I noticed when at home with wifi, even at idle, it drains faster than when i'm outside on 3g... It kind of baffles me.... Like significant drain which cause me to worry.... And it seems like only happening after the latest software update....

Um, as far as i remember, i set that to off when i just got my phone back then.... Unless the new software update altered that....

I couldnt recall where i turn off the auto sync... But i went through my whole settings again and made sure any 'auto' is still off.... (Except auto lock screen that is.... ) i even made sure i close all running apps....
I'm starting to regret the update.... my battery used to be able to last a whole day by night time still have 40% even on 3g until next morning.... But now on wifi which is suppose to be less battery consuming, it cant go pass evening.... At night is worse, batt goes down more than 10%.... I checked with wakelock detector and nothing unusual.... I'll charge it, so it goes to bed with 70% and next morning its 50+%
But thanks for helping me....