my battery life just by turning off 3g and enabling it whenever i need to surf. :3 with normal use, calls, wifi, surfing, video recording, games, practically everything really. the 3g is the battery killer and ur running apps in the background. kill all ur running apps before u go to sleep at night (i also turn off cellular data when i sleep ) if u dont wanna leave it plugged in or kill the unnecessary ones that u dont need to be running in the background. makes a world of difference