The IPhone 4 already has a ridiculously powerful battery giving it great battery life, yet like any other device while streaming Netflixs or other apps of the sort it also begins to die. The solution for this may just be the Mophie Juice Pack Plus. The Juice Pack plus is supposed to give your IPhone 4 two time the battery life it currently had making this battery even more ridiculous than it already was. The one issue we can all agree on with this case is that it will cost you quite a bit. The case is $100 which seems to be a bit much for a case, but the question then falls on whether or not this case would benefit you more than the price will hurt you.