I read in quick start guide for the N800 that it shouldn't be left plugged in all the time. Is this one of those batteries that you have to let run down almost all the way before plugging in or it loses memory (or something like that)? I got into the habit with my IPAQ just to leave it plugged in all the time (like at work and overnight), but don't want to reduce the life of the battery in this new unit if this is not a good practice. Any confirmation that I should not leave this plugged in, essentially all the time (when not in use)?