Also, nothing is mentioned in the owner's manual on this procedure after reattaching a battery. I think if you do nothing (as I have done several times in the last month of tinkering with my electrical farkles) the computer relearns the throttle settings on its own. I have noticed no degradation in performance so far.
However, it may be more beneficial for the prior to '07 models.
'09 BMW R1200GSA Adventure! (gone)