Roger, I went through something similar to this earlier this year. I didn't take the detailed measurements you're taking, so let's put that aside for now. In my case, the battery seemed to take a charge just fine, registering 12.9V or more immediately after charging. As soon as I touched turned the key on, the fuel pump would prime but I could hear it slowing down in that short cycle and then there wasn't enough juice to crank the starter much, if at all. This was with an Odyssey, about 2 years old, on an approved charger, but the bike had the stock VR and much of my riding is a fairly short commute. (As an aside, I had a reconditioned starter from GS Addict in the bike because my previous one was starting to squeal.) I replaced the battery with a new one and all the issues went away. A few weeks after that I upgraded the VR to the higher output Euromotoelectrics version. My point is that my battery took what appeared to be a full charge but couldn't maintain it for more than a minute or two. You seem to have a slightly different issue but I wonder if the root cause is similar, i.e., that battery is failing. Good luck.