It fits exactly into the housing.
It is just as fast as the original battery charge.
Instead the 1120 mAh battery of the original he has 1100 mAh.
He reached already after 2 charging almost the same performance (around 90%) of the original batteries in currently only about half of the cost (incl. postage).
I am very satisfied with this product.
Should I still notice something negative or positive, so I'll mention this here.
Addendum: My initial positive impression was fully confirmed. I can find no difference between the original and replacement.