The battery itself is wrapped with this unfortunate Kunstioffbanderole but quite firm sitting so easily insert the battery into the camera and can be found especially. (An all-plastic housing but would the besssere choice)
After inserting the camera showed the charging status as "full". Nevertheless, I first loaded the battery. Since then I have about 200 pictures made (but no flash and long viewing of images) and the battery is still displayed in full.
If this continues, then the Mitsuru is a real and especially cost-effective alternative to the original Fuji.
Especially since you can not be sure that an original Fuji battery is really of Fuji, as I have experienced selbt because I have submitted an "original battery" sold battery due to considerable doubts about Fujifilm.
From there, it said the battery was a copy and be accommodating enough, it was exchanged. Only the well does not look different from the one I had submitted. Since I'm naturally skeptical.