Originally Posted by cb1111
So what you are measuring is the voltage coming out f the cigarette lighter socket - not necessarily what is actually going into the battery.
That said, many of you are missing the point - and are doing so intentionally.
Several of us have given valid reasons (including scans from the Bentley manual) that explains why a battery should be registered. If you want to ignore that, then it is on your dime since it is your car.
Your problem may lie down the road.
With that, I'm out of this thread. This constant bickering is giving me a headache.
The voltage seems to be the same at both locations. I have a headache too!