The delivery came one day too early :-) thanks to Amazon! Otherwise, as usual, Olympus quality! Last year (end of 2010) with a renowned expert Photo 2 pieces GPI "Li-Ion ordered BLS-1 (replica) for 22.99 per piece. Duly charged and discharged. The first battery was after the third charge already fat cheeks. The second battery I have just so you can remove them from the camera a week ago. I should have known better: Cheap is not always horny! Especially not when it comes to high-quality electronic devices. So only original batteries!