I deleted my other post on this because it was poorly written. So I am rewriting it here with a better explination and will post some pictures this afternoon.
See attached diagram -
My question is -
Does the DC PSU #2 also charge the batteries if AC PSU#1 has more power then needed? If that is the case, should I unhook the wires running from SB to DC PSU#2 from the SB and connect them directly to the 24V battery bank with the included cable?
Could that be why my SB (see screen shot) is showing that the internal battery is at zero% even though it is getting good sun?