I measured the charging one time with DW driving so I could see the clamp on ammeter. 14.4V and the battery amps briefly exceeded the 40A scale. I've seen 14.6V charging.
I'll see what I can do about some of the above charging suggestions. I'm stalling on pulling the battery because the access is difficult at best since it's located under the passenger seat. It's so bad that jumper posts are located under the hood. But I can pull the negative cable and isolate it from the car for testing.
It's a Mopar AGM group H7A 800CCA 80AH. It's completed enclosed with a hose attached for ventilation.
