Charging circuit - reduced load on ammeter circuit
Sure.
Given:
Let's say I run a hefty wire from the alternator to the battery. So I get used to how the ammeter reads after that.
Then
WHY" would I not notice a change "either" way whether it's charge or discharge?
Because this
I get that running the extra wire will reduce the ammeter's reading, but won't it still register "change"?
The ammeter won't see any flow along the new, hefty, wire.
If the wire direct from the alternator the battery is hefty, electricity for recharging the battery will take that path.
So what does that mean?
The ammeter only works when electricity flows through it. The electomagnetic field created by the electricity flowing through the meter deflects the needle.
Why would there be any current through the meter if there is a shorter path to the battery?
It still should show discharge.
Why?
Where does the electricity wants to go?
And what's the shortest path there?
Is it all the way across the engine bay to the alternator, and then from the alternator all the way to the main splice?
Probably not.
Bottom line will come down to which route has the least resistance.
@Mopar Tim did a wire around on his '66 and this what he observed.