1.shut down your phone and take out the battery ( its important) , memory card and sim card if you can (just to be on the safe side)
2.wait for 5 mins and put all of these back and start your phone in recovery
3. wipe cache partition and dalvik cache in CWM
4. restart your phone and DOWNLOAD THE APPLICATION CALLED AUTOSTART ( it has a car icon)
(it is a payed one so don't be a tightass)
5.disable the bold applications from following list (as per Autostarts):
Maps:
- After Startup
- Application replaced
- Widget updating (Traffic)
- Widget updating (Latitude)
- Widget updating (Rate Places)
Software update:
- After Startup
- Application installed
- Application removed
- SMS received
- Secret Code entered (credit -- ceriko for autostarts thing )
6. go to settings applications and running services and kill SOFTWARE UPDATE , GMAIL ( if u r not using ) , MAPS AND NAVIGATION , MARKET , AND ALL OTHER except system apps
7. after applying the settings in autostarts as per point 6. , and following point 7 , restart your phone and see in running services that what apps are there running . if there are any unsued ( however after configuring autostatrs you will not see any that you have disabled )
8. now this is the time to re-callibrate your battery