Update 04/11/2014
Bought in June 2014 broke in October 2014 Exchange has now been carried out on the dealer "more accommodating" method of payment, thank you very much. what did happen? During the day, I noticed that always opened the battery cover and then only extremely difficult einrastete again. Then I looked at the battery, this broke up! This can be hazardous, because it was pretty hot, so I immediately took him out of the device, unfortunately without a spare battery + cover while having. The battery pack broke up into its Besatndteile on, I uploaded to a few images, so you can also see (I have then taken the broken battery completely apart, actually 2 battery modules were connected together to render this service. Both are a type of plastic holder held together and are just plain stuck. It can be seen well, the NFC module which is mounted inside the film.
I hope I was just unlucky and it was the first time to a "Monday" battery, because basically I am highly satisfied with the performance. Even the dealer reacted quickly and provided for compensation. Remains to be seen eie long does the battery.
Addendum: Pictures inserted as video slide!