Cell phone batteries run out while on the trip was a bitch. The same with the iPhone, which has many multimedia features. Actually, there are some tricks to make the iPhone battery can be more durable. 1. Disable the push notification feature This feature is very consuming battery on the iPhone. For some reason, application developers typically activate this feature. However, many are not. To disable it, go into the settings. 2. Disable push email Push email on iPhone is less sophisticated than BlackBerry push email features. iPhone battery only lasted for two hours if the feature is enabled. Open an email at certain times only. It's enough to help save on battery life. 3. Turn off unused features Turn off Wifi and 3G features if it is not used in the trip. These features is enough to make batteries run out quickly. And also any other application that must be set manually, turn off unused applications immediately. 4. Disable the backgroud task The user should not be doing this, but...