Well the prior post was a false positive! The battery did in fact take a full charge, however it lost all ability to retain it. Well good news is that this was evident right away in the garage, and not after heading out for a concentric circle. This one is strictly down to my error period of the clock In the TII represents a parasitic drain on the battery, and I always leave the negative cable disconnected. With that said, this battery lasted better than 5 years, so it is probably time for a new one in any case. We are now backup to full strength in the electrical department.