I don't know as fact, but I think not.Weird question popped in my head, are the 392 only going to be equipped with one batter, or are they getting the 2nd batter as well?
Here is why:
The extra battery is for that silly stop/start feature in other Jeeps.
I don't think the 392 has this feature.
In looking at the pictures of the dash layout, I see the selection button for the exhaust feature is where one would normally find the on off switch for the stop start. Just to the right of the mute button.
So, just a deduction from this observation.
I wonder if the second battery is called out on the build sheet of a stop/start equipped Jeep? If it is, that might be another way of predicting.