Voltmeter reading

[ukrkoz]

Mine will have the battery/alternator voltage around 14v, and the OBDII port around 12.5v.

I have a fairly new (Odessey) battery, and new 160amp alternator.

I do see the fluctuation on the dash gauge, and wondered (answered in previous posts) if there was a variable chargine system.

Yeah, mine reads about same on ECU and OBD.
I still think that unfortunate jumping attempt shifted something somewhere in them electronics. As it was one off.