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Does SmartShunt consume energy with VBatt+ disconnected, but "Aux" connected to starter battery?

Consider a SmartShunt wired to monitor a coach battery, as well as a secondary (starter) battery on "Aux" as per:

batt.jpg

3.5.1. Auxiliary connection for monitoring the voltage of a second battery

Does the SmartShunt consume any energy from either or both of the batteries, if I disconnect only the "VBatt+" connection (implying the Aux connection remains connected to the starter battery)?

SmartShunt
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