My 2015 F350 diesel comes with 2 batteries, not sure how they are connected, so to connect winch to only 1 or run cable to both? Max draw about 400A.What says the gurus. Frank.
I have a 12,000 lb. WARN winch on my F350 diesel dually and I connect both cables ( Positive and Negative ) from the winch to the Positive and Negative battery on driver side.
I leave the Positive cable attached and attach the Negative cable when I use the winch. Plans are to install a battery disconnect.
I also have 3, 12,000 lb. snatch blocks and an extra 65 ft. cable for complicated pulls.
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