Hooked up a solar
array to a MPPT solar charger
and it worked great for my house bank but my start battery
was not getting topped off. So....copying my Balmar
alt I added a batt isolator to split the charge wire to both banks and keep them isotated from each other. When I hooked it up the battery
voltage from both banks averaged out on the volt meter and then the solar controller turned itself off. When I direct wire the controller to one bank or the other it works fine and charges that battery bank. What did I do wrong?