First adjust your brightness to make it viewable but not bright, remove running processes you dont need: https://spreadsheets.google.com/spr...SENVeXlqUm5vV0E&single=true&gid=0&output=html Install 3g enable/disable widget and turn off when you dont need it ie standby. https://market.android.com/details?...sMSwxLDEsImNvbS5mYXJwcm9jLmRhdGEuZW5hYmxlciJd Turn off wifi, gps and bluetooth. Unselect background data and autosync, note you need background data on to use the market. Dont use live wallpapers and delete unneeded widgets. My battery now lasts a full day and has a full battery icon.