And I have also resorted to Nonameprodukte and was disappointed. Accordingly, an original battery should ran. By reading various reviews I came across the note directly from Amazon to order place at a third party.
Indicated was a delivery time of 2-4 weeks, but in fact it took only 5 days, so there is this ever pluses.
As can be seen from the pictures, which I have added, there are two characteristics to which one can recognize an original battery:
1) The hologram on the blister / Plastic Packing.
2) The two seals, where it says: "Do not accept if seal is broken."
For me everything was fine and now I finally nen original battery lie with me =)
Addendum to power:
The battery shows after 4 days use the same performance as the one shipped with the mobile phone battery. In my subjective feeling after the power is even a little better than that of "Erstakkus".
TL; DR version (Too Long; Did not Read)
Order directly from Amazon and pay attention to the packaging with hologram and seal. Displays same power as "Erstakku".
