So I just got the S3 coming form the Droid Razr. The battery was the only reason I switched from the Razr. Right now the S3 is at 42% on almost 17 hours of batter life. Now, about 8 of those hours were while I was sleeping and i lost about 5% during that time. Since about 7:30 am I have been in 4G and I hardly even used it till about 12:30. Is this good battery life? I'm not sure if I am just expecting too much or if there is something I should do to help it. I don't want to use too many apps because I feel like that is also using more battery than its worth sometimes. On the Razr I used smart actions and widgetzoid and turn everything off that I didn't need. That was very helpful especially for turning off 4G. I also paid for Juice Defender but I stopped using it after a while. I was really hoping I wouldn't have to use any apps. The control options in the navigation bar is a nice feature. I see a powersaver option but i'm not sure what it does because i don't notice the screen getting darker or anything. So what kind of battery life are you guys getting? Are you using apps? Are you in 4G? I'm really only interested in hearing from people that are not rooted because that's not helpful to me. Anyone have any suggestions as to what I could do to save battery life?