Long Life

For all of their power and versatility, smartphones--even the best of them--are cursed with abysmal battery life. Unless you use your phone very sparingly (and who does that?), you're lucky to make it home at the end of the day with enough juice left in the battery for one more call. But with the right apps and a little insight, you can double your smartphone's battery life--and work (and play) longer than ever before.