So i checked the voltage of my battery (OEM factory, 6 yrs old), using the OBC of my Bimmer E46.
The video shows voltage at ON position 1st, then how the voltage goes up after starting...
the car was driven about 24 hrs before this 'test'...i was told it should show at least 12.5 V in 'on' position...mine (see vid) started at 11.3 and then was 11.9 or so when I started filming (so you won't see the 11.3 at start, but 11.9), and then AFTER STARTING crept up to like 13.9 or so...
AAP test said "needs charging" after driven about 30 miles, but not 'bad'. Temps are dropping and the car doesn't get driven a lot, and last start was kinda 'rough'...
Here's the vid:
The video shows voltage at ON position 1st, then how the voltage goes up after starting...
the car was driven about 24 hrs before this 'test'...i was told it should show at least 12.5 V in 'on' position...mine (see vid) started at 11.3 and then was 11.9 or so when I started filming (so you won't see the 11.3 at start, but 11.9), and then AFTER STARTING crept up to like 13.9 or so...
AAP test said "needs charging" after driven about 30 miles, but not 'bad'. Temps are dropping and the car doesn't get driven a lot, and last start was kinda 'rough'...
Here's the vid: