QUOTE(andrekua @ Mar 24 2011, 08:22 PM)
I also had the same problem. At first I thought because I havent set the frequency check but even after setting it to 15minutes, it still does the same thing over and over. Had Gmail and Hotmail in widget as well as Fb widget. The same thing running on my Android does not eats as much battery. Seem to affect both my S3 phones, C7 and N8. I also same case like you, leave it in my pocket with just email and fb widgets running. Occasional incoming calls which I did not pick up due to dirty hands and 30% left by 12~1pm (Turning the phone on @ 7~8am).
I think excessive 3G data usage is the cause because by deleting the APN, the problem goes away. Do you notice that every time it wakes up from sleep, 3G/WiFi will auto connect to search for updates (for emails and Fb)?
last week my phone also problem hot and battery drain soooo fast although in power saving mode..
full charge before sleep after wakeup phone already off
so my hand soo itchy to hard reset and flash back my phone using pheonix :B
flash fail coz pheonix hang.... so flash again dead phone mode
i don't know what the root cause...
now full charge 2 days ++ in battery monitor before only 5hours +

from i got my phone last year until now.. i have 1 problem that some time when talk using speaker mode
speaker no sound but only normal ear speaker
anyone here got same problem??