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I am going to replace the wiring to two batteries on a 23 seacraft with 97 s250. I was going to run single wires to engine from battery switch but I was told to run one battery to the engine then run the second battery of the Aux power off the engine? apparently there is a built in battery isolator? Any suggestions would be greatly appreciated! Also is it possible to order the nice flexible battery cable that yamaha factory rigged my engine? seems like a large gauge but still very flexible and the ground and power and connected for a clean install?
thanks
thanks