I tested the battery for only a few days and got him today even on my E-PL1. Have 330 pictures taken with the battery and it still shows 2/3 full on - which I know from the original battery that it can be quickly passed to other 20-40 photos then. I have the viewfinder VF-3 used the safe saves electricity compared to the big screen. How durable is the battery will be seen over the years - wenne he keep it up by simply holding the price TOP!