My battery life is worse as well, not significantly. But enough for me to notice. I used to be able to leave to school at 100% and get out of school at 95-97%(4 hours). Yesterday, I go to school and I was at 89% after school with the same use as usual. I thought it was odd. Who knows, Ill see how it is for the rest of the week before I make any judgements.
This "update" wasnt really any kind of an update. It should actually help the battery(says them). Im not going to update again until 6.2/7.0.1/2 unless the update will actually help me or improve the phone.
Any change after 20%? Similar experience here on the 4s. Huge drop in battery performance. They should really allow a rollback if the upgrade doesn't work!
I got my ip5 after 6.1.2 was released and immediately upgraded it.. So I can't speculate if its better or worse. But I currently have over 5 hours usage with 35% battery left.. With no music or anything of that nature. All screen on time basically. Can't say that's bad life. I think it's amazing battery life
I had bad battery before the update now it's pretty good. Currently at 12% battery with 5 hours 49 minutes of usage and 15 hours 48 minutes of standby since last charge.