There are quite a few cheaper replicas of the original battery's here on the net. I decided nevertheless for an original battery for GH 2 because I have found in the reconstructed batteries none which also indicates the battery level in the display. Battery life is expected to be satisfactory. Original halt! No Unnterschied to the enclosed battery on the camera. Still, I find this battery over-priced, but 2 points deduction. Unfortunately, there is no real alternative, at least I did, despite a long search not found.
