foarte de folos toate detaliile:

GoTo: Settings/Privacy/Location Services/System Services (scroll to the bottom).
Turn off:

Genius for Apps
Location-Based iAds
Traffic

GoTo: Settings/General/Cellular
Turn off:

iTunes
Passbook Updates
Reading List

Reboot your phone (turn it off/on)

Plus I turned off push for email

eram disperata cu bateria, imi scadea cu 5%/1h
am urmat pasii tai si am 1%/h cu wifi on
multumesc tare mult