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I am confused by the Installation Guide for my new BMV-702 to be setup with an auxiliary battery. The Guide shows both battery positive terminals connected “to load”. I only have a single wire supplying power to my travel trailer. Don’t I need a battery cable connecting the two 12v battery positive terminals in order to get the capacity benefit of having the two batteries in parallel? I prefer to connect the load wire to the auxiliary battery – but does it matter?
if in parralle then the negative leads from BOTH batteries go the the battery side of the shunt
So instead of connecting the negatives on each battery to each other both go to the Shunt? do you have a diagram to explain this?
https://www.victronenergy.com/upload/documents/Wiring-Unlimited-EN.pdf
wrong:
right:
The yellow point is where the Shunt should be.
We mostly use the "diagonally" wiring.
