Have 2 pieces bought in October 2012, the end of 2013 there was with a no longer the full power and was always empty quickly!
Meanwhile, both are flat that is in the camera, they are displayed as empty and charging it only takes 10 seconds then appears full, but back in the camera they will remain empty!
Three Star (not bad) because held for more than 1 1/2 years and the favorable price is already ok, I think!
PS: Even in October 2012 I got two Duracell Li-Ion Battery DP 405 which is now still the same performance (Chill) have as at the beginning.
