I am seeing many of these success stories and getting very jealous!
Prior to ICS, I consistently was seeing about 48 hours on a charge. Once I updated with the OTA, I started seeing about 20-24 hours on a charge (same usage, same "screen on" time). I ensured all widgets and apps were set to max update intervals or manual, if available (basically, the ICS set up is exactly how I had GB set up). After several days with no change, I began running several FDRs using suggestions from this site and others with no improvement. The last FDR I performed was yesterday. On this one, I unchecked "Back up my data" and "Automatic restore" then manually installed all apps/settings after the reset was completed. I am still seeing no improvement. For example, last night while I was sleeping (no usage), battery level dropped from 50% to 20%. I do not see any rogue apps on my battery details. See attached screenshot.
Am I missing something?
View attachment 52623