So if I end up with two trolling batteries and one cranking battery, a good way to wire it would be...
Both TM batteries wired in parallel circuit(positive to positive/negative to negative)
TM connected to only one battery
All Sonar and other electrical accessories connected to cranking battery
Outboard connected to cranking battery
One Bank of charger connected to each battery(I assume each bank consists of a hot and ground wire)
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