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How Is Breakaway Battery on Trailer Charged  

Question:

Is the break away battery charged by the tow vehicles trailer light wiring or does it need to be changed separately?

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Expert Reply:

The breakaway battery like what is included with the Hopkins Trailer Breakaway Kit # 20099 will use the 12V circuit from the tow vehicle's 7-Way connector to maintain its charge while you're towing. I have attached a wiring diagram for how to set up a breakaway kit on a trailer that you might also find helpful.

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Chris R
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