Hi All - This is my 1st iPhone (the 4S). I love it so far. I noticed that after the update, the next day, the battery died rapidly. I let it run all the way down and charged overnight. The next day I charged and I haven't charged it again!! Much better. The one thing I did was disable iCloud - don't know if that is the culprit, but since I disabled I am getting great batter life: Screen shot below - is this good?