Quote:
Originally Posted by Corts60
The finned unit looks like a battery isolator. Perhaps this was towed behind an RV and the RV would charge the battery in the jimmy. Hence the plug in the grill has more pins than the plugs in the rear.
The battery isolator would’ve enabled the battery to be charged without also being drained by the RV when the engines were off. If that makes sense.
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Ok I think I get the idea. Thanks for the info!
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