Resetting SmartShunt using only Small Positive Wire Connected

Is it possible to perform a Full Reset on the SmartShunt 500A device with only the small red (positive) wire connected to the battery

without having the Negative side of the SmartShunt 500A device connected to the battery?

how should this work?

a circuit always needs 2 wires, expect it is an antenna

where should the controller in the smartshunt get its supply from?

I’m trying to just connect my SmartShunt to perform a full reset using Bluetooth.
Not interested in having any battery info.

It needs + and - to power up.

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