No expert, but it sounds like overcharging to me too, which would point to the regulator.
But first check the age of the battery, I think.
”This above all: to thine ownself be true,
And it must follow, as the night the day,
Thou canst not then be false to any man.”
"Generally speaking, you don't die on motorcycles.
You die a few yards away from what's left of them."
It appears I am not only a NRA Life Member, but also a Patriot Guard.
**** - I didn't know that
Holy Mololey, Batman, I didn't know I was a GOA Life Member, either
Being drunk seems to be better