From my experience with my '02, the only thing that will need resetting after reconnecting the battery is your clock.
Unless they've changed things dramatically on your '05 Monster, you don't need to remove the tank to remove the battery.rtheman said:Speeddog: so in checking out the details and reading the Workshop Manual, it seems that I have to detached not only the seat (obviously) but also the fuel tank? I tried searching a bit for How-To's with pictures but couldn't find any, so you know of one? Because in the manual it said to drain all fuel out, remove the tank, ... So my thinking is, might as well just drive to a friend's gargage and plug the tender directly onto the batt. with the fuel tank still attached at its top. Is this wise?