Purchased in November 2011, today 26 January 2014 they are fucking just over two years and only ten refills. I have many batteries bought in a hard discount store (A - - i) before them and they were charged much more and all are still functional. Maybe Duracell practice planned obsolescence !! Anyway in the future I will buy my batteries in -LD-, cheaper and better.
by against delivery by amazon was perfect as always.