So it had to be an alternative.
The package of the two batteries and the charger an excellent price / performance ratio and therefore I ordered it.
My hope was to have a separate charger, which I can save my original battery and possibly get replacement batteries for emergencies. Once the package arrived afloat with me I started loading the now existing 3 batteries and it turned out that all three are 100% fine. The batteries are easy to charge "clicked" into the station, put the plug into an electrical outlet and is already lit a red light on. When the battery is fully charged, the LED is green.
Here are some things I would like to highlight:
+ In exactly 100% pass me
+ Simple operation (just use and it is loaded)
+ 2 batteries included (capacity higher than that of the original)
+ Longer Photo / movie experience than the original battery
+ Easy change the battery on the go possible
I can warmly recommend this set and would buy it again at any time.