Noticed that the Fiesta and many new Fords use an adaptive smart charging system for the DC voltage system. Most cars with the traditional DC charging system operate between 13.5-14.8 V DC while driving. To save fuel and reduce alternator load Ford has designed a very smart system that can operate from 12.1v -14.8 V DC depending on the battery health and power demands. I've noticed that while driving my accessport and DMM reads about 12.45 V DC and 13.5 VDC with the headlights on.
What voltage are you guys and gals seeing while driving? I was worried that the charging system was faulty but it appears this is how the system was designed to operate.
What voltage are you guys and gals seeing while driving? I was worried that the charging system was faulty but it appears this is how the system was designed to operate.
