So I have the most positive reviews at this point contradict. I do not know if it is an isolated case, or is it at all batteries so, but my battery is not even holding by half a day. It can be really impossible, that it is this is the original - the same also says the Battarietestprogramm "Nova Battery Tester" (incidentally, a highly recommended freeware). With this I have both - my original battery and those tested here - the original plan has been mentioned in the program still 920mAh - which would be attributable to the age - the test of this battery found only measly 360mAh. At first I did not believe it myself, after all reviews have been overwhelmingly positive, but after two weeks of use, this battery like for me in practice.
Addendum: Have shortly afterwards contacted the seller and addressed to this circumstance - an exchange of the battery was carried out without any further complications (thanks for that). Upon arrival on the second battery, the same test was carried out - here, the capacity was higher by 50mAh - therefore it is not here unfortunately an isolated case;
I would recommend this battery clearly not buy again