ALSO to clarify...
This past saturday I got 11 hours of moderate use without recharging during. I made a few phonecalls, did some browsing. I was monitoring the battery use screen all day...my biggest problem was being on the edge of cell coverage 30% of the day.
I'm not using a task manager to kill apps; you don't need to, you really won't see much if any battery performance increase. I am keeping GPS, wifi, 4g and bluetooth off, and brightness down to the lowest it will go, but I do keep sync on at all times.
I use tasker to manage my wifi/net connections to turn on/off in certain locations (it queries the network provider for general location and then looks for nearby wifi APs, way more efficient than GPS). Also I have my GPS auto turn on and off when I close or open an app that needs it.
At this point I do very little battery configuration during the course of my day (i.e., turning on/off services or features). The only thing I toggle is brightness when I watch videos.
If you don't have it already, seriously consider getting tasker to help you manage your battery life (among other things).