Both batteries have the same problems. They went to only 150 images suddenly although the cameras previously anzeigten still 75% (in Canon 7D and 5D Mark III test). Subsequent charging impossible. Either the Canon charger indicates error by blinking permanently or it loads 2 min and then says battery fully.
As I have found, unfortunately, only recently is no longer possible, no return. Very annoying!
But then for 35 EUR too expensive if you stand right in the bird park to which one had 200km journey and nothing works