I have both the extended and standard batteries and I switch between them once in a while depending on how long I will be away from a charger. I have always had pretty good battery life with both batteries. I can easily get through a full day on the standard battery with moderate use. The last few days I have been on the extended battery and the charge has lasted way longer than normal. Right now I am on 54 hours of use and I am only down to 50%. What has happened?? My Bionic is stock on .902. I am not complaining but this is insane! Nothing has changed in my usage or settings. I use mainly wifi while at home and 4g away. I do use a widget to turn off data when I am not using it. The strange thing is I don't get a very good signal at home where I am most of the time; usually only one bar. Has anyone else had a sudden drastic increase in battery life?