It is slow to go up in voltage, could be always the way it was, just don't remember. Driving another time it was lingering around 12.8 and slowly get up to 13.3 or 4.
Currently other then the slow climbing voltage it tops out at 13.7, with all electrics off it would bust into the 14 volt range, now when at idle it will go into the 14 volt range, with some revs the voltage drops.
Just strange that might be connection issues, might not.