It is indeed occasionally, that is not enough, the battery of the iPhone, and neither outlet nor time is available for charging. Here helps an external battery in the form of an envelope over the iPhone can be easily loaded. That has advantages and disadvantages, which I have reported a few days ago. 99% of the battery cases have the same design and thus the same disadvantage, because you extend the iPhone downward and partially the power button is difficult to access.
The essential, which is why you can buy such a shell, is indeed the battery and brings an additional profit of approximately 2000mAh 85% battery power. In the test I have an iPhone 5 put with 5% residual battery in the fully charged shell and came out again at 89%. Charging went well with 110 minutes rather quickly across the stage. The insertion and removal of the iPhone is very easy, simply by pushing away the top and the iPhone uses. My tester with iOS 7 has, as already in other cables with the message This cable or accessory is not certified and may not work reliably bitched. But this can be confirmed easily and then it's done.
On the back of the knob is an on and off of the battery. When these 2 sec pressed appears on one of the 4 small LEDs on the battery charge status. [1 = 0%
The LEDs flash when charging the shell and show the charging status. Is loaded with a normal Micro USB cable and the iPhone can remain continuously in the shell, because if the shell with pickled iPhone has power, automatically loads the first on the iPhone and then the shell. It takes along something to the 3.5 hours.
The cutouts for the power button and the camera are very well implemented. The speakers are exposed and the 3.5 jack is perfectly accessible to a connector in the size of the enclosed the iPhone earphone.
Intensive users of the iPhone should be set the Ultra Slim Battery Case, because extra power is actually to use always.
Details in my blog post: [...]