Jan 9, 2012 8:58 AM
Having the battery on your phone die is the worst. Adding a battery pack that makes your phone so thick it no longer fits in your pocket or clutch defeats the purpose of having a super slim smartphone. What's a girl to do? Get a Mophie Juice Pack Air ($80), of course! Neither a tennis shoe or a sports drink (which is what the name sounds like to us), this slim case for your phone adds up to 20 hours of audio time and 6 of video to the life of your iPhone.