V21 Dual battery set up - suggestions ?

[bgreene]

Currently - 1 battery in the transom battery storage spot.

Considering- dual battery system, leaving the rear battery for starting the engine, plus the other battery inside the cuddy to power everything else.

Then a high quality switch that allows for an " all " position to use both if needed for engine starting.

Anyone have a set up they want to show pics or talk about ?


Thanks