A big number of users complain that iOS 4.3 seems to be draining their batteries much faster. Even with the same settings turned on, (for some), their battery life just vanish.
What can you do?
1. Try a factory restore, for some it seems to fix the issue.
2. If the factory restore didn’t work, try this:
– Go into Settings/Mail, Contacts, Calendar, tap on the Exchange account name and turn off the 3 switches.
– Back out of settings, then open Mail, then Contacts, then Calendar to clear the connections.
– Reboot the phone (hold HOME and SLEEP until an Apple logo appears, ignoring “Slide to power off”)
– Go back into settings and turn the 3 switches back on.
You can also do this by deleting the Exchange account, rebooting, and adding it back.
3. If neither the Exchange re-setup nor reboot didn’t help, you can also try to disable the Ping function which runs in the background and drains the battery. Just go into Settings > General > Restrictions and turn off Ping.
Hopefully, one of the solutions will fix the problem.
