Got a Battery Tender Jr. and installed it today.  Little fussy getting the terminals but it finally went in OK.  I put the end of the pig tail in the tool box.  I got it all put back together and it all went fine.  

Then the problem.  When I went to push it back into the garage, it would not roll smoothly.  I rocked it back and forth a little, and a bolt about 2" long fell out from where it had apparently been sitting on the belt.  With it out, the bike rolled, but there was a grinding sound from the front pulley.  I pulled the cover off, and there was a little bend in the out side edge of the pulley, and it was dragging on a couple places on the inside of the cover.   A little tapping with the small brass hammer, and it now clears everything, and rolls smoothly.  

My problem is I have no idea where the bolt came from!!  Whatever it was holding must have at least one other bolt in it, because I can't find anything loose.  The only thing I was working on was the battery, and there does not appear to be anything missing or loose there. Any Ideas where else I might look?

Good News, I took it by my local bike repair shop and they took a look at it for me.  They said it looks like a tank bolt, and they can see a new bolt in place.  It looks like somewhere in it's past, somebody had the tank off, and dropped a bolt where they could not get to it, and replaced it.  It jst picked this time to drop out.  Guess it's a good thing it decided to drop out when I was pushing it rather than riding.