We have seen all sorts of cases for iPhone, and although many of these cases are purely cosmetic, some of them actually have an additional functionality, and if you're looking for an iPhone case with functionality, today we might have the perfect model for you.
There are all sorts of iPhone cases on the market, and some of these cases come with built-in battery pack that can extend the battery life of your iPhone, but today we have another iPhone case that comes with built-in charger. JuiceTank iPhone case comes with foldable built-in charger, so you can easily recharge your iPhone simply by plugging this case to a wall outlet.
In addition, no cables or any other chargers are required, so you won't have to carry your charger with you ever again. In addition, JuiceTank case is made from high-grade polycarbonate, so it should protect your iPhone from damage and scratches.
JuiceTank iPhone case is one of a kind case, however, it is currently a Kickstarter project, but it might become a reality someday.
Source:
JuiceTank iPhone case has a built-in charger | Ubergizmo (http://www.ubergizmo.com/2012/03/juicetank-iphone-case-has-a-built-in-charger/)