I recently installed the Victron 712 in my RV, I have 4 6 volt flooded batteries connected, I found a diagram on your site showing the correct configuration to the 6 volt batteries and I am set up with that configuration. The issue I'm having is that the app only shows 0.03 volts on the Voltage. I've checked the voltage with a volt meter to see the output and it correct. Any help would be appreciated