Quote:

Not misinformation. All wires have some resistance and inductance. Just because they are the same "circuit" does not mean the same location. That same common circuit could be broken down showing small resistances due to wire length (and even connections) between each part of the circuit.
Having the connections closer to the battery, and on a different connection than the starter or other high current loads will also help prevent dips in the voltage when a high current load turns on. E=I*R



The inductance or capacitance of wire in a DC circuit is nill. When you get into the Ghz, that's a different story.

I agree that being on one side of the circuit vs another can result in higher or lower voltage which is due to resistance of the wire + connections in the bulkhead.

Also when a car is running, the alternator will be the source of the current, not the battery so your reasoning is backwards.