Even worse, however, is that the female does not fit for the charger. The connector from the original charger does not fit purely correctly and you have to more or less hold the plug so that it starts to load.
The performance, however, seem to be quite ok. Whether it is comparable with the original battery, to be seen only after a few charging cycles.
It is questionable whether the lithium-ion cells are really, in terms of weight, I feel no difference and because they have the same capacity and voltage, I can imagine that too difficult.