Pictures of your dual battery set up ?

[smokeonthewater]

I'm not sure how this will help ya but here's the setup I did in my Monte Carlo

Not quite a finished product yet but functional... two of the batts are on one bank and the third is on the other... The eventual plan is put all three on bank 1 and a 4th starting only battery on the other side of the boat as bank 2.
The single starting battery will be for both engines and the generator. And the 3 will be for house functions only unless I need to flip the switch for a dead starting batt.
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[spareparts]

been a wile since I've looked in there, but heres how i did mine





they sit on a shelf that i glassed in