Rendezvous came with a decent power system which I had hoped to use for a year before upgrading. However, performance and other problems cropped up in the first few months of using it, so I moved this project earlier in the list and jumped in. ?
I’m setting up a similar Balmar + wakespeen system on my Volvo TAMD63p’s and am getting the battery alarm now because there isn’t a D+ connection. I haven’t installed the multiplus or new batteries yet though, still charging my old GC2’s.
There is a FAQ on Balmars website that uses automotive relays but not sure that will work with the non-Balmar regulators.