What does your voltage reading say on your in-dash display? - Page 2 - 6SpeedOnline

Nov 10, 2018 | 10:50 PM

#16

deilenberger

Registered User

Joined: Mar 2011

Posts: 1,493

From: Spring Lake, NJ, US of A

Rep Power: 126

Quote:

Originally Posted by quickster2

Mine goes from 13.2 (rarely) to 14.8. I have a new Porsche battery installed by the dealer. Normally after driving it seems to live in the range of 13.5 to 13.8. 2102 S. Sport mode the voltage goes up for some reason.

The reason for the sport mode jump (1V usually) is - the EPA mileage is measured in non-sport mode.. so they limit the load on the alternator to improve fuel mileage. Once the battery is fully charged - the sport and non-sport mode voltages pretty much are the same.

Nov 11, 2018 | 07:43 PM

#17

9000RPM

Registered User

Joined: Aug 2015

Posts: 62

Rep Power: 15

I have a 2014 V6 and it displays 14.3 volts. I have two radar detectors that can display the voltage and they both display .3 volts more than what the screen shows.