You can check your email, browse for shoes, play with Angry Birds, and do a whole host of other things on smartphones--unless the battery dies.
As anyone who's owned a smartphone knows, it can be incredibly stressful when you see your battery life ticking down towards zero, leaving you stranded and out of touch.
Luckily, there are some things you can do to help extend your battery life, not only when it's about to die, but over the course of its existence. Check out our helpful tips and vote for your favorite. Then, see our slideshow of what to do if you've lost your phone.