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Diode Recommendation to Prevent Winch Battery on Trailer from Charting Breakaway Battery  

Updated 07/12/2017 | Published 07/11/2017

Question:

i have a car trailer with a break away. i added a winch with its own battery. i need to get winch battery from charging the break away when vehicle id off. i was thinking 2 diods one on each battery

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Expert Reply:

Yes, your idea of using diodes will work to prevent the winch battery from charging the breakaway battery.

The diode part # RM-690 would be perfect for what you are looking to do. It has an 85 amp rating.

expert reply by:
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Jameson C

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