Ive added a SmartMatterySense (SBS) to my system so I can monitor battery temperature when solar charging my lithium batteries.
The SBS instructions says to connect +ive and -ive wires to batter terminals, but how does this work when I have a BMV-700 with shunt attached to the -ive battery terminal?
common wisdom is all -ive lead should be connected to ground side of the shunt .
I appreciate the SBS only draws a very low current (20mA), however should I connect SBS -ive wire to the -ive battery terminal (as per instructions) or to the ground terminal of the BMV shunt (as per common wisdom) ?
Thanks
Gerry