8. Turn off auto-sync. Go to Settings -> Accounts & sync -> Auto-sync.
9. Change auto-sync frequency (Weather, News, Stocks, Twitter, etc). If you don’t want to turn off auto-sync, you can adjust how frequently data is retrieved/updated. The settings vary depending on the app (and some don’t offer the setting at all), but it’s generally found in the same place: Settings -> Accounts & sync. Select an account from the list and then tap “Account settings” to change the sync frequency.
10. Disable wireless network location services when not needed. Go to Settings -> Location -> Use wireless networks. Note that this (or one of the other options) needs to be enabled if you want to see and/or use your location in apps like Maps. Great: SONY NP-66 , NP-66H Battery
11. Turn off window animations. I know it’s nice to look at and fun to show off, but eye candy uses extra power (albeit not very much). To turn it off, go to Settings -> Sound & display -> Animation -> No animations.
12. Don’t use a live wallpaper. Live wallpapers were one of the new features in Android 2.1, so it feels like a step backward not to use them. They don’t hit the SONY NP-55 Battery , NP-55H Battery very hard when used, but they do make a small dent. So if you’re trying to improve battery life, even if only incrementally, use a static wallpaper instead.