Hi folks! I had a new battery installed in to my Bn last month No 2 months ago and I probably get eleven hours out of it but 99% of the time there is a microdrive plugged into it either for the gps or books. I honestly can't say whether I have a shorter battery life or not but it is very satisfactory to me and I try to plug the unit in every night before we go to bed. Mary Ellen Earls
