After the update and FDR, I changed a couple of settings.
Your getting less battery life... I'm getting much better battery life.
I'm not sure what I'm doing that you aren't, or vice-versa...
Now in a day of lite to normal use, using WIFI at home, 4G for Internet,away from home, reading the paper on line, checking several forums, checking the mail a couple of times a day, making half dozen text and a couple of phone calls, plus several photos... On ICS is was getting about 16-18 hrs...
No comparison.
My best battery life is 30 hours to get down to 20%.