Hi Everyone-Been an "observer" (lurker sounds so creepy)since August which was when I ticked off the only item on my bucket list & I got my first Porsche - a '13 Black C2S that at the time was about 1 year old/5k miles. Life is good.

This past week I've noticed that my volt gauge has been running right under the red line at 15.1-15.3 volts (basically only the radio running) It had been running around 14V. Should I be concerned/alarmed?

Happy Thanksgiving to all!

 

Normal. The car turns the alternator on and off as part of a gas saving program. It turns on a lot while braking and voltage varies greatly.

 

I've never seen over 14.8. I'd call the dealer tech to see what the spec is.

ChuckJ

 

I saw 15.1 today also. Maybe because it is cold today (ambient temp less than 0*C) and the car wants it high? In preparation for heated seats/ defroster?

This is the car's first winter, so I have no comparison.

Normally it would run from 13.4 to 14.8.

 

I'm at 15.1v this AM too, but also dealing with one front radiator fan that is not working (part on order). Also, I'm told because of this, that is why I have zero heat coming into the cabin. Brrr! (25deg F right now).

 

Highest I have seen is 14.8 and pretty steady there. I thought it should normally be at 14???

 

I recently asked the dealer to look at the car as I too had a 15.1. They said, don't worry unless you see 16. it is normal.

 

Good to know, as I was monitoring it today and it was ranging from 14.7 to 15.1. Most of the time it was 15.1

 

im not an electrical engineer but if the battery is low then th e alt. will kick in to give more juice..,.,my dodge ram charges high for awhile and then settles back down to 14V,,,,,,oringal batteries from Oct 2004,,amazing