Charging voltage question?

Cooler Canadian weather is a blessing.

This is recommended maximum float voltage vs battery voltage, not ambient temperature. AGM battery systems typically incorporate battery temperature sensors.

AGM.PNG

While 13.8V at 77F is typical for well maintained Mopar, I doubt they cut back to 13.44V at 104F. I am also guessing that under hood battery temperature will exceed 104F, on a regular basis.

More information here: AGM Charging : Technical Support Desk