Battery Life
Let me start by saying that during the week battery life is priority 1 for my droid, being that do to my job, I am unable to charge whatsoever anywhere from 9-11 hour span, so I tweak my droid as much as poosible to suit that.
Where do I begin...well I guess of course the obvious would be, not to use any live wallpapers.
For me its:
Never use live wallpapers
I dont use any widgets
Keep all locations off both gps & network
In "settings" - "wireless & networks" - "mobile networks" keep "data roaming" disabled
I keep wifi off unless I am at home, which then I have in the advanced tab, wifi sleep policy set to "when screen turns off"
I dont have or let any apps to "auto refresh" such as facebook, or weather bug, I keep them disabled from "auto refreshing"
I dont know how much an effect this has if any on battery useage, but I also have all my animations turned off, but I do that simply because it makes my phone so much snappier
I also utilize the automatic backlight tweaks that UD has, I use custom levels & settings for each.
And I know this is repeated often, but NEVER use any task killer app, I use "autostarts" from the market (that Skull One recommended) to control your apps even before they are allowed to start (if u think that is a drain)
Also, use & experiment with the advanced tab in SetCpu, I have found threw experimentation, that adjusting the "up threshold" up or down greatly affects battery drain & why is pretty obvious, in laymens terms it sets how soon your cpu ramps to 100% & more importantly it obviosly so affects how much time your cpu runs @ 100%, I have especially found that with Gingerbread this # can be set relatively high, do to the added demands Gingerbread seems to put on the cpu, its going to load the cpu harder therefore ramping up the cpu sooner, right now, looking at my droid I have my Up Threshold set to 95%, & my d1 is plenty snappy for me.
Im sure I miss some of my tweaks, if I did Ill post em as they come.