Rich --- The Victron BMV 712 and the PD 9160L have arrived. The battle born batteries will be here on Wednesday. I have a couple of 1' battery cables for the shunt and I have read the manuals . The question I have is about interfacing the 712 with the pd9160L. The manual with the charger states that is does not have Charge Wizard or other control capability but allows for interface or a switch. Likewise the 712 manual describes its interface/relay control capability. The question is "do have have your 712 controlling your PD charger? Is it necessary? If so, where do you get the cable to connect the two or does the setup require a charger controller relay? Overall. wiring this up is certainly in my wheelhouse but I wasn't sure how the charger knows when to stop charging the batteries or if the batteries have internal charge regulators .