JJ, I feel your pain. I used to go 2 days before charging my Razr. Then ICS came along. It updated about 1pm and the phone was dead when I got hom at 5pm. It started the day fully charged. I thought, wow, the update must have drained it. Next day, off the dock at 7am fully charged, 3pm I get the "need to plug it in notice". Searching the web, I was able to figure out how to disable a bunch of stuff so I did as much as I dare. I am not a heavy user, just Pandora in the car which is abut 20 minutes total a day. In fact I only have one of the home screen with any apps on it. One screen has a couple phone numbers and 3 others are completely blank. Still, here it is 1:38 and the (ugly blue used to be nice green) inicator shows 50%. Yesterday I used the auxilary battery that came with it for the first time since I bought the phone in April. Up until now I loved the phone. This ICS is making me think twice, however. Nothing works right, it's more combersome like having to do 2 things just to unlock it instead of a quick easy swipe or having to go to settings to turn on WIFI when it used to have a button right on the first screen (I don't think I should have to download another app for that).
Sorry for the rant, JJ, just wanted to say I feel your pain in regards to the battery. Wish I could uninstall ICS.