The iPhone peripheral developer Morphie has put together a new product called the Juice Pack Pro case that packs a whopping 2,500 mAh battery that doubles the life of your iPhone 4 or 4S.
The Juice Pack Pro comes in a tough case and an equally tough battery pack case that is said to exceed the military specification MIL-STD 810G. In other words, it is pretty rugged and can probably handle falling down unless your iPhone lands face first on the sharp end of a rock at terminal velocity—which is unlikely.
The case is water resistant, but not waterproof, so it’ll protect your iPhone in the rain or from a soggy backpack but not underwater. It also comes with a screen protector and a rotating belt clip so you can hang your phone around your waist, your bag, or anyplace else.
The battery pack also comes with a four-LED status indicator to let you know how much power it has left in it.
The whole case weighs about a pound and costs $129.95. You can pick up the Morphie Juice Pack Pro at their website.