Originally Posted by Rick
Symptoms are as if you are not using the dual shunt and, instead, two separate ones...is that true? If not, move swap the shunt-to-battery connections at the dual shunt and note weather
the problem stays with bat #1 or moves to bat#2 indication and we'll talk from there.
I switched the shunt leads, and the problem moved to battery 2. Battery 1 now reads (approximately) the correct amperage draw, and battery 2 reads out of range, "0.L"
This suggests a problem with the shunt, or at least the left half of the dual shunt, right?