Ordered but unfortunately broken ... shame. * New * quick update from 08/07/2014

Update 08.07.2014. There are still good service in Germany!
About 2 weeks ago I received a call to an employee of the company where I had ordered the battery. He offered to send me to another Li-Ion battery for my Nikon D5100, because the front of ordered batch of batteries were all defective. The dealer may actually not help it, he had unhesitatingly referred back me the money back. And also to test each battery because you then also not the time nor the necessary equipment for it.
Now I've got another battery sent. This works fine in my Nikon D5100! Thank you for this free service! Hats off!
A nice little gimmick to clean the lens was also sent along. A big thank you for it! :-)

I had ordered the battery for my Nikon D5100. When the battery arrived within a few days, I was very delighted.
Immediately packed into the camera, the camera does not turn on. Battery empty? Unpacked charger connected. Not charging, charging blinking at high frequency. Charger to indicate that the battery is something wrong. Unpacked digital multimeter and checked voltage. 0,7V-> defect!