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How to Charge Trailer Battery with 7-Way Connector  

Question:

What do I need for wiring from a 7 round to battery so I can have refer run while towing?

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Expert Reply:

The 12 Volt accessory lead on the 6 or 7-way connector can be used to keep the battery on your trailer charged. Run the accessory lead from the trailer connector to the positive battery terminal on the trailer battery, and ground the negative terminal to the trailer frame. Please read and follow all of the battery manufacturers guidelines regarding battery charging.

The 12 volt pin of the 7-way is the 1:00 position.

expert reply by:
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Jameson C

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