Loads reliable

The external battery provides enough additional electricity to my iPhone 4 once fully charge and to have something to hold on reserve. This was very important to me, because for a long trip and tours of the battery of Apple is quite fast empty.

*** *** For Size: for a battery with 1.9 ampere one must presuppose a certain size. However, I never imagined the battery slightly smaller presented (here the first minus point). The battery is almost half the size of the iPhone 4 itself. Likewise, it has failed to adapt to the battery at the height of the iPhone. Thus, the mobile device together with the battery in an inclined position, if you normally put it on the table. Now it is clear, in such a situation is the most power to the adapter for iPhone. Faith, this design favors early material wear.

*** *** For processing: The adapter is relatively good if you can just lie there. Should you nevertheless now use the iPhone and the battery together, you have to be careful that you do not quite accidentally separates from the external battery iPhone. Sitting is it too loose. Funnily enough, the seat on the iPhone 3GS is slightly better. Similarly, one can not use a protective sleeve during loading. I have for my iPhone 4 Bumper, I have to agree each time to attach the external battery pack. Very unfortunate and therefore only 3 stars.

Nevertheless, the battery meets the need for its purpose and I bought it to me also. Perhaps one would need to consider some things in the design. But for the price is OK.