As always, fast delivery for at this point really again kudos to Amazon. But now to the battery: I ordered the battery because my old lost gradually more and more power. The old man held a maximum of one more day, not usually. Especially under heavy use, the battery indicator quickly went to the basement. It needed a new. And what can I say, it is now much better. The New hällt now almost one and a half days. I think he could still keep longer but on my smartphone currently running a lot of applications in the background which is probably the reason for the erhöten consumption. The battery itself is because he original Samsung is the quality very good and fits exactly into the phone to be able without verutschen. The situation is different in these cheap batteries that can indeed here may also be selected. They then indeed they can but for a larger capacity verutschen and thereby the Smartphone eg crash at Erschüterungen. So I would always resort to the originals. I use the battery now since a few days and so far everything is working well and what is very convenient you can the second battery still to share, so to speak as a backup when the battery is sometimes empty when you're just under Wechs and can not charge him then you can the old reinserted and it can go on :). I think that should eigendlich times the standard that the producers are getting a second packaging Battery attach so you can no longer get into the mess that one under Wechs is no longer accessible.
My final conclusion is: strong buy recommendation!