Starter Problems (?)

I took the old Barracuda to work yesterday since it was a sunny day. It's been a few months since it has been run, but I was able to get it started after cranking for a while (it did seem to crank slowly). I keep the battery on a battery maintainer. Well, on the way home I had to make a couple of stops. After each of these stops, the starter was barely able to turn the motor over. It did start, but I was wondering.

I do not think it is a battery issue since the ammeter showed charging after the starts and went down to near zero (the middle) before the next start.

What do y'all think? My brother called it heat soaking. This has not happened before. Please let me know a best guess as to the solution to this.

The motor is a stock Commando 273 with the cast iron manifolds.

Thanks lots,
66Cuda-S
Author: admin