Mophie's iPhone 5 Juice Pack Helium: Double Battery Life for Not Much More Heft

It may pain you to add girth to the iPhone 5's slender frame, but when a little more junk in your iPhone's trunk means double the battery life, it's hard to say no. The new Mophie Juice Pack Helium case promises to do just that and be about 13% lighter than the iPhone 4's Air version. » 2/05/13 12:55pm 2/05/13 12:55pm