I've had and enjoyed my E-M5 since shortly after it's release. I noticed, when I last charged one of my batteries (not aftermarket), that the charger light was flashing. I reseated the battery and things seemed to be working as usual. However, when I went out shooting yesterday evening the "freshly charged' battery failed after about 10 minutes. Just over a year seems a short time for a battery to conk out. Has anyone else had this issue? I do have a second battery and my husband's 2 batteries are functioning normally. The problem is that I don't trust any of them after this episode and I'm considering getting a couple of spares, as expensive as they are.