Which Wire of Mighty Cord Trailer Connector Adapter # A10-7084VP Is for Charging Battery

Updated 05/06/2019 | Published 05/04/2019

Products Featured in This Question

Mighty Cord Trailer Connector Adapter - 4-Way Flat to 7-Way RV Style - 12" Long

(148)

$20.69

10 Gauge Wire - Blue Primary - Per Foot

(108)

$1.65

40 Amp In-Line Circuit Breaker - Perpendicular Mount Bracket

(97)

$9.88

Question:

Looking at Item # A10-7084VP Is the yellow “12 volt” wire the one that will allow my vehicle to charge up my camper battery when hauling? I have a factory 4 way on my 2002 Ford Sport Trac. I need a 7 way for my trailer and also a non permanent brake controller as this tow vehicle is only temporary.

asked by: Jey

Expert Reply:

The black wire of the 7-way adapter part # A10-7084VP that you referenced is normally the circuit associated with charging a trailer battery. That said the yellow wire could be too as long as you wired up the trailer to match.

From the adapter to your vehicle battery you will need to run 10 gauge wire like part # 10-1-1 (sold by the foot) through a breaker like part # 9510.

expert reply by: Jameson C