There are several simple steps you can take to improve your iPhone’s battery life. The first is of course tuning down the screen’s brightness. IPhone’s screen is good enough even at 10% brightness, so don’t fire it up at 100%. Turning the Auto-Brightness feature may also help you save battery life. Toggle Wi-Fi and 3G off when you are not using them. These features drain batteries fast, and turning them off when you are not using them can prolong your iPhone’s battery life substantially. Setting the Auto-Lock to 1-minute, or slightly longer if you need it, can also save battery life; iPhone shuts down screen and some other hardware when it is locked, and it will surely extend battery life.

If you don’t need it, turn Push features off and switch to Fetch instead. Push uses too much power while Fetch is more power-saving. You can also try to use apps with intense 3D graphics less often; 3D graphic processing requires a lot of power naturally. Last but not least, you can turn of vibrates especially when playing games or running apps. Your iPhone will last noticeably longer once you followed these simple tips.