Battery life really bad on gingerbread 2.3.3

Kies say I have new upgrade 2.3.3 so I upgrade the phone
battery life is know bad it last maybe 8 hours !

I thing I will try to go back to 2.2.1
or try MIUI

Regards
Sigster

menu>settings>applications>running services: Can you see Maps or/and Software updater hier?

I solved this problem and i m impressed how much effective it is!
Follow these steps and you will be surprised with results:

1. backup all data and applications cos u need a soft reset in this way
2. charge your device to 100%
3. turn off your device and wait.
4. hold home / power / volume up
5. when bootup logo appears, release power
6. u will enter default android menu
7. choose clear cache partition
8. when done, choose factory reset
9. When done, choose reboot or it will be rebooted automatically
10. your mobile is now reset and you need to restore your data and backup.

Done! Now i can keep more than 2 days of battery while before it was maximum a day.
It really worked great to me.

Sent from my GT-I9000 using Tapatalk