I'm not going to complain too much. They are what they are and technology has moved on. I've probably had worse battery life in a camera battery but it was so long ago I've forgotten it or which one it was. I don't shoot a whole lot any ways so it really isn't fair for me to complain.Those W batteries are the worst... ZED battery for life! Once you try it you won't go back. Well, obviously..
I think the resting discharge of the ii is a lot higher than the iii. Could be wrong on that too.