Had to boost Mirage #3 to get it out of storage.
Annnnnd this is what it showed like after a few additional hours on the charger...
I knew it was weak when I bought the car, but that is dead and not coming back.
And unfortunately none of my extra batteries (big old boat batteries) will fit.
I'll get it sorted out in the next couple of weeks before I park the MPGiata for another winter.