Here's the Guest 2611 for the cranking and accesory batterys...gussied it up w/2 rod-holders 5 amps per "leg"...
It goes to the 2 batts in the white boxes...2 group 31s for trollin' motor under grey hatch-lid just forward of dog; they have a Guest 2620 (10 amps per "leg") hooked up to them that's mounted to the underside of the lid...I leave the lid open when chargin' so no gas build-up... ;) ;D...