So far, I was never a big fan of third-party products. However, I can not say from this battery. While the normal version is already good, the price was worth the premium battery definitely here (are anyway only a few euros more). In the first test in continuous operation during the weekend of the battery after 1100 images still had 33% capacity - very good! The installed chip is working fine and there are no error messages or any other problems with the battery. I'm going to definitely get one more of the variety and can confidently recommend it.