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2004 E350 super duty

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Old May 12, 2025 | 10:02 PM
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Tony Ricci
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2004 E350 super duty

I have a 04 e350 super duty van that used to be a new broadcast van . It had 1 big deep cell battery that ran a bunch of stuff. I e plugs..lights etc. that battery died so I ended up getting 2 smaller deep cell batteries in its place...so now I'm wondering how to charge them with my alternator. I have an isolator I just don't know how to wire it to alternator and batteries...help
 
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Old May 12, 2025 | 10:37 PM
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bajaphile
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You can just connect the positive from the isolator to either battery, then throw a good sized jumper between both positive terminals of the batteries. You do the same for the negative. They will be all wired in parallel.
 
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