I did a double check on my batts and panel today at 10:30. It was a typical cloudy greyish Victoria March day and my meter was reading 14.2v in. I don't understand why your figures and my experience differ because you seem to be able to talk about this pretty fluently. I wish I new more about the subject. My batts and panel seem to work very well together and keep me in juice (with my low demand) indefinitely.
There is a tide in the affairs of men,
Which, taken at the flood, leads on to fortune;
Omitted, all the voyage of their life
Is bound in shallows and in miseries.
Shakespeare, Julius Caesar IV, iii, 217