Update: I measured the battery voltage this morning. 11.6V. Car started, rather slowly, but turned over. Voltage at idle was 12.0 v; at about 1500 RPM 13.2 v; and at about 2500 RPMs (which maxed the ammeter at 80+ amps), 13.6 v.
So I would conclude the alternator is doing its job as is the voltage regulator and the battery is bad?
thoughts?