iPhone Life - Best Apps, Top Tips, Great Gear

Long battery life and quick charging are two features that iPhone and iPad users like me enjoy on a daily basis. There are various ways that an iPhone can be charged. When your phone is on, it's easy to confirm that it's charging by checking the battery icon. However, if your phone is completely out of juice and you can't see the iPhone charging icon, how do you know if your phone is charging? What about your iPad?