My sgs recently had a HUGE drop in battery life. Last night it was at 75% when I slept and this morning it was at 17% And over the period of less than 1 hour is at 10% currently. That more than 60% used over a period of 9 hours of the phone screen OFF and nothing on. Only thing I have running is LauncherPro and SMSfix all the time. Have AdvanceTaskKiller to kill apps everytime. Wifi/BlueTooth/GPS is off Auto-SYNC is off Battery use is: Cell Standby 37% Phoneidle 14% Android OS 13% Android System 12% Display 11% I been using the SGS for over 2 weeks and battery life was good. I could use the phone lightly (few 1min calls, 3~5mins wifi, 2~3mins games). And have around 80%++ by the end of the day. It just recently did a huge drop in battery life about few days ago. Install no new apps or uninstall anything at all. I'm on Canada Bell I9000-M 2.1 Android Everything is stock cept unlocked and useing fido. no data at all Appericate any comment or advice ! Thanks. *UPDATE* Achieved MUCH MUCH better battery useage now. Heres what I did: I let the phone drain all the battery out untill it shut down itself. Charge it all the way up back untill it told me it was full.