Here are the settings I am trying out as my "Power Saver Mode" for my HTC Magic (Rogers). Not sure yet how much of a difference this whole set up will actually make, but I'll try to make it a scientific study. Please take a look, I am interested in comments on the setup in general, and on individual settings (ie. will a particular setting really make that much of a difference to the over-all power usage?). As of the moment I changed all these settings, my battery is at 97% (After I turned on my phone this morning, all these settings were previously opposite so i could get my email, etc). Android Power Saver Mode ------------------------- 1. Screen Brightness 15% 2. WiFi = OFF 3. GPS = OFF 4. Auto-sync = OFF 5. "Enable always on mobile" = OFF 6. Background Data Usage = OFF 7. Use only 2G Networks = YES I am also using these apps: "TasKiller" to kill BG apps "Useful Switchers" to modify settings. It would be nice if there were an app that could work like the power setup in the system tray of Windows where you can choose different power modes for your laptop. A simple app with a Power Saver Mode, Balanced Mode, and Power User Mode that could all be set by the user. It would be nice to be able to run the app, choose the "Power Saver" mode and have it automatically change all the settings as I've listed them above, and then be able to choose "Power User" to reverse them easily so I don't have to go through all the separate steps to do it myself.