Hi Looking for a little advice really I have a new mobile application (mobile coffee van). I have two separate LIFEPO4 batteries each made up of 4 x 280AH 3.2V cells connected to a Multiplus 2 (12v- 3000-230V). I have these batteries separate as the both have their own Daly Smart BMS. The question I have is. Im installing also a Victron Smart shunt BMV 712 , the small fused power lead supply, do I connect to a common positive shared by both batteries +busbar or just to one battery. or this not that critical and am I overthinking it?. I was assuming the BMV would monitor batteries as one???. I have (hopefully) attached basic schematic of battery layout. Sorry its a little vague but this install was supposed to be undertaken by a professional who I have now fallen out with as he never turned up and am now doing the install myself??? Coffee Van battery layout.pdf