Amp Gauge "Sorta" Bypass Question

Does it always run on the discharge side? Even when going down the road? I want to know what "normal" is if I decide to do it. Thanks.
Normal will depend on the condition of each path to the items using electricity.
Imagine electrons flowing like a river.

Take your finger (any finger) and put it on the power source.
Now move your finger along the shortest path to whatever is using electricity.
Do this for every item using electricity.
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Now do the same with the additional wire.
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