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2021 W2X High Roof Cargo T350, 148", EcoB, AWD, Avalanche Grey
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Still no. Everything charging and discharging the house battery MUST be on the downstream side of the shunt. Think of it as a flow meter that works both directions. If you bypass the shunt to get to battery ground, then that isn't counted by the shunt. So, house battery ground to shunt battery side, then other side of shunt to all other grounds, either by a negative busbar or co terminating on this side of the shunt.

Your dc to dc leads go to the same busbars to charge.
 
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