Only problem, the 220V charger adapter not securely fastened to the latter; there the game so you have to press all well when plugged into a wall outlet.
Also play in the battery compartment. Do not graze the charger passing near the outlet, otherwise the battery falls ...
Note that the first controlled charger fell stranded after 2 days but refunded without problem by Amazon. New order: it seems OK this time, but the games described above are still there.
If the batteries are very good, even better than the original Samsung. Difficult to quantify but autonomy, overweight and oversize seem to confirm the additional 200mAh! Not disappointed about that.
-1 Star for the poor quality of the charger.