TPG writes: "Imagine walking around for an entire day. An ENTIRE day, from early before you go to work to when you get home at night to after you eat dinner to when you go to bed, with an iPhone that is not only fully charged, but had the little "charging" icon lit in the upper right corner. The ENTIRE. DAY. No car chargers, no making sure you have the plug with you at work, that you take it home, that the iPhone is plugged in when it can be. Just carry it in your pocket, all day. Can you imagine that? I didn't think it was possible.
Luckily for all of us with $80 to spend, that's what it's like to have a mophie Juice Pack Air."