I was wrong, much cheaper battery (500mAh instead 600mAh) from another manufacturer for higher price to sent. What is that, please? The delivery came only in transition after I asked for! The contact was nice and the Rücklabwicklung ok. I had researched for a long time and wanted to CS-Battery 600mAh have. Now I had a lot of work and always have no new battery. Annoying!