You forgot to mention what year it is and the wiring from the alternator
to the battery changed a bit over time. For WBX vans it never is a
direct wire, it always makes a few stops or detours, depending on the
year. At the battery end the charging wire is the large battery cable
from the starter to the battery. The large cable is the starting cable
during starting and then it becomes the charging cable after the engine
is running.

Mark

HotelWestfalia wrote:
> It’s about the charging to the battery from the alternator.
>
> 13.9 comes to the battery from the alt.
> but when that wire is connected to the battery, it shows only 12.5 and slowly less and less as the engine is running until 11.95.
>
> one funny thing I found; when I check the continuity of the other red wire (not the one from the alt.)  to the ground, it beeps for a second, no more.
>
> I don’t know what to check, where the juice is leaking to.  We have gone through two alternators, three new batteries.
>
> I even made a new set of wires from the alt. to the battery direct.  Not sure, it’s the right thing.  Looking in the Bentley it seems to be direct, but I can be ‘wong’ again.  The alt. wires go into a loom and I don’t know if they do anything else other than coming out at the battery.
>
> Anyone’s help would be appreciated.
>
> Zoltan
>