iPhones or most smart phones in general are not exactly frugal when it comes to power. Most users would charged twice or more daily and some will need to invest on a battery pack.
Most battery packs, particularly attachable ones such as mophie Juice Packs are bulky and often makes the iPhone look like a overgrown brick. While external battery packs are cumbersome and you’ll look silly making a call with one attached.
A company called MiLi addresses those issues with its Powerskin. Battery packs that gives you 1200mAH of juice at a size of a normal back plate iPhone Case. Plus, the Powerskin gives you 8 different colour combinations which is more than the standard black/white you get from Morphie.
More details on MiLi Powerskin here.
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