Yes, that is what I am trying to say (sometimes words aren't really very good for explaining a concept, but I think we are both saying the same thing here)
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Here is a little closer picture of the Shunt. The actual nomenclature in the manual might be different, I haven't looked it up.
It's a device that measures the amount of voltage drop over a gap with known resistance (in this case all those flat bars), then the gauge is what uses that voltage drop to tell you how many amps are being either charged or discharged through that shunt.