I am connecting a MPPT 100 20 and a smart shunt. The mppt is utilized for 2 90W solar panels input.
The wiring diagram I am using shows to connect the mppt battery negative directly to the load connection of the shunt.
Can I instead connect the load side of the shunt to a ground bus bar, and connect mppt negative to that, or does the mppt need to connect to the shunt? Will this affect any readings?