1. The battery is delivered in the original packaging Canon. On the packaging there is a hologram. However, one could easily go unnoticed and open the package and close it again.
2. The printed logos on the battery look completely different than on the original battery that came with the camera. The notches on the battery were different from the present to me piece.
3. When inserting the batteries in two different Canon EOS 600D cameras hooked, and it gives some trouble, insert the battery pack until it stops.
4. A Removing the battery is no longer possible without technical aids. It takes, for example, a screwdriver or some tape that attaching the upper end of the battery in order to pull it out in this way out of the battery compartment can. Without a tool I have not figured out the batteries out of the compartment, a little shaking did not help.
5. And now the decisive factor: the original battery that came with the camera, weighs 50 grams. This one bought from Amazon "genuine Canon" battery weighs only 39 grams.
The conclusion that I draw from this, I'd better not outside here.
The two batteries I have returned.
I note, however, that this battery will now be resold directly by Amazon. When I ordered it, it was said, by selling "XYZ" by Amazon. Apparently, there are so many stocks on Amazon. The same error so does not necessarily continue to emerge.
I'm going to buy the battery morning in a local electronics store, even if it is likely to be there more expensive than on Amazon.