Still no updates or anything regarding the poor battery life on the 4s? Ex girlfriend had a 4 and could go days on end without charging it. I can get maybe 7 hours with my 4s before it's dead. Know they released an update to "fix" it but didn't work. Any tips?
Turn off location based services for everything you don't actually need. Close apps that are running in the background (double tap the home button, when the apps show up across the bottom hold your finger on one till they wiggle, then X out of everything you don't need open), adjust the brightness to be "auto" and set the slider somewhere to the left of dead center. Lastly, turn off push notifications for things you don't actually use, each time you get one it lights up your phone / vibrates / rings, that all wastes battery.