Originally Posted by Dankees
What about Task Killers and Battery Savers?
And, is Auto-Brightness better than having 15% - 20% screen brightness? Which is better?
Don't bother with task killers at all. It doesn't help anything. You may try Juice Defender if you wish. Some Nexus users are having good results with it, but you have to live with your emails not pushed in real time. I personally don't see any need for battery saver app as it's already good enough for me.
So before trying battery saver app, see if your phone gets much better with our suggestions first. Like Tim K mentioned, signing out of Google+ is pretty big saver. It's a known battery hog now and I forgot to mention it. Good luck.