If anyone has one, its the odd size one just under the left front of the seat that ties the tupperware into the center piece.
Apparently it sits into a nut on the reverse that spins when the bolt spins

view from sitting next to seat on ground It is on the top left

I have tried a needle nose vise grip (really thought it would hold while turning the bolt ) without success also tried to get a small mm socket over it but there is no room for it let alone the wrench. Now I am waiting for penetrating liquid to perhaps work You cant see the nut but I can feel it with my fingers turning and I was able to take a pic with my google phone but cant get a pic while needle nose is in there
Hate to admit defeat as I have been working this since before the snow fell. If I fail I will have to ride the bike to Mahopac and get a ride home from an independent shop to be able to change that battery if I cant get the nut and the rest of the tupperware off, and perhaps then need to get the engine guards loose enough to access the battery oy vey indeed
Guarantee I will not keep the bike until it needs another battery altho it has been a great commuter bike and totally reliable since 2010 and its nice to ride a bike to work almost 100 days a year
After taking the dog for a long walk to clear my head I will give it another shot. WIsh me luck