It doesn't matter how the batteries are connected, they will get charged.
There isn't "two paths for power" and the charger won't get confused as to which battery needs charged.
Batteries draw current from the charger, so each one will "draw" whatever amount of current is needed in order to become fully charged"
The other diagram is better way because it "balances" the load, meaning it draws power more equally from both batteries in a discharge situation.
When I worked for Heart Interface (now known as Xantrex) this was how we always recommended connecting batteries in RVs and boats, or any system where an inverter or DC loads were being powered by a battery bank.
Barkoff wrote:
jimh425 wrote:
I can't tell how you have it wired, but look at this diagram. It doesn't really sound like the converter/charger is working.

No, I went simplistic, simplistic won't work?
