Improve iPhone 4s & iPad Battery Life after iOS 5.1.1 update

I recently updated to the latest ios 5.1.1 on my iPhone 4s (yea i know its been out a while but i don't jump on the new bandwagon) and after I did the update I noticed that my battery life took a dump on me and the phone only lasted a few hours vs 10+ hours.

I discovered this to be a fairly common issue with users who updated iOS through on-device Over the air updates, although it doesn’t seem to be much explanation as to the cause.  But anywho here is the quick fix.

1. Perform a manual backup to iCloud or iTunes before you do this just in case (Note: this will clear your settings, apple id's, passcodes, etc so you will have to re input them)

1. Open “Settings” and tap on “General” then “Reset”, tap on “Reset All Settings”
2. Enter the passcode if you have one set, then tap “Reset” to confirm the settings adjustment
3. Reboot the device and set it up as new, reentering personalization data as necessary

Battery life should be immediately improved