I agree, great info. I bought the Noco Genius 7200 charger, it was rated high on the AGM charger list. I need to let it do its full charge deal for a few hours though.

My alternator is a Tuff Stuff chrome 100amp Chrysler unit. I took it to Automotive Electric in my area, they rebuild Alternators.
He looked at it and said no way that design will put out 100 amps, he put it on his test machine and it put out 70amps like he predicted. I'm running an electric water pump and twin electric fans that don't kick on very often.
But yea, the whole battery/charging system seems weak to me.
My Duster was always at 14volts with a cheap parts store battery and cheap denso 60 or 70 Amp alternator.

Let it charge until it says it is done, then unhook it, turn the lights on for a minute or two, and then hook it back up and it will probably charge for a good bit longer. A lot of automatic chargers kick off too early if they are doing more than just maintaining a battery. I don't like automatic chargers but they are pretty much a necessary deal with AGM stuff.

Noco makes good stuff but my favorite charger for at home AGM stuff is the Optima brand ones, I have the 4 amp unit and it has served my 9 year old yellow top well.

How much rear tire tread is left now
we build them to beat on correct

Thanks guys I'll keep working at it.
And yes, it will lose some tire tread soon! It's literally snowing again here in Ohio