Got some time tonight and climbed under. Only the positive battery cable goes to the large starter terminal and the small wire to the “s” terminal. Removed them and cleaned them anyway while I was there.
I did have a thought which concerned my negative cable to the engine. I removed that for the gasket change so I took a look today and they could’ve used a good cleaning which I did. Could that have caused enough resistance to “trick” the sensing wire on the alternator to overcharge? Either way I cleaned them and also double checked the terminals on the alternator output post. It’s raining here so no test today.
I don’t have a good multimeter at the moment so one with an needle is all I had. Battery showed ~12v so I put a charger on it for a bit. It showed just over by the time I was done.
I’ll test drive tomorrow if I have time and can maybe borrow a better multimeter.
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