Well, I got a volt meter you can plug into your car lighter so I can have constant readings.
So, car off I got between 12.5-12.8.
Car on, no charge light, 14.1-14.3
Car on, charge light on, same readings.
Once I unplugged/plugged the reader and got a 13.5 while the car was on (and the charge light was on) -- didn't seem right so I did it again and it went back up to 13.9-14.1.
I checked all my ground connections and they seemed fine (about how many grounds are there? I think I got to about 4?)
Also, this is new. See picture below. When I turned the car off the needle pretty much stayed there.
Should I be getting worried about the needle getting that close to meltdown?