When walking with the iPhone there are two problems: the first is the battery life and the second is wet. Keep dry can the iPhone with various cases protect very well and for the battery life there are luckily this Mophie. I've let this Mophie already in February send directly from the USA, as it was available at the time not yet on Amazon. The Mophie consists of 2 parts and fits perfectly to the iPhone 5. After plugging there is no play or wobble, who has something asserts probably caught not the original but a cheap copy. The Mophie is fairly flat, so that the iPhone 5 still looks very elegant with the Mophie. Volume, on / off and the cameras are exempted and so easily available. With the Mophie doubles the battery capacity of the iPhone and therefore sufficient even for longer day trips. Warn the charge status of the Mophie 4 LED on the back and it can be switched off to / via slide switch. The thing about the switch has the advantage that you only need the Mophie switch when the iPhone battery is exhausted (you should have already brought half of the Tour behind him, otherwise it will almost !!).
For charging you can leave your iPhone in the Mophie, so you need so even the mini-USB cable. Since I use the Mophie only for hiking, it is quite often connected and disconnected with the iPhone. there have to date (4 months use) still showed no signs of wear. The Mophie still looks like on the first day, the contacts function smoothly and the battery power has not waned.
For the intended purpose of me: Hiking with the iPhone, it's just perfect and a very strong buy recommendation.