Can 7-Way Trailer Connector Accessory Circuit be Used to Power Trailer-Mounted Winch
Updated 03/06/2012 | Published 03/02/2012
Products Featured in This Question
Question:
Can I wire a trailer winch directly to the auxiliary power supply on the trailers 7-way plug?
asked by: Kevin
Expert Reply:
The 12-volt accessory circuit lacks the amperage to power a trailer mounted winch. Your best bet would be to either install a 12-volt deep cycle battery on the trailer, and use the 12-volt accessory circuit to keep that battery maintained, or use a winch wiring kit like part # BDW20348 and connect the winch to the vehicle battery.
If you use the 12-volt accessory circuit to maintain the trailer-mounted battery, I would recommend installing a battery isolator, like part # PK5231201. The isolator will deactivate the accessory circuit when the tow vehicle ignition is switched off, to prevent the battery on the tow vehicle from becoming accidentally discharged.
When shore power is available, use a battery charger like #CTEK56353 to charge the trailer battery when needed.
The diagram I provided will make the installation a bit clearer for you.
Product Page this Question was Asked From
Starter Solenoid - SPST - 12 Volt - 100 Amp - Continuous Duty - Grounded
- Accessories and Parts
- Battery Boxes
- Switches and Solenoids
- 100 Amp
- Pollak
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Shop: Front Mount Hitch
- Shop: Bulldog Winch Rear Wiring Kit - Quick Connect to Terminal End - 1 Gauge - 24' Long
- Shop: Curt Front Mount Trailer Hitch Receiver - Custom Fit - 2"
- Video: Set up: Curt Front Mount Trailer Hitch Receiver on a 2018 Jeep JL Wrangler
- Video: Review of CURT Front Receiver Hitch - Custom Fit Front Mount 2 Inch Receiver - C31086
- Q&A: How To Choose Correct Size Wire for 12K Winch on Rear of Vehicle
- Shop: Roof Rack
- Shop: Rhino-Rack SG Roof Rack for Rain Gutters - Vortex Aero Crossbars - Aluminum - Black
- Article: Trailer Wiring Diagrams
- Shop: Starter Solenoid - SPST - 12 Volt - 100 Amp - Continuous Duty - Grounded
- Shop: Optronics LED Trailer Clearance or Side Marker Light - Submersible - 3 Diodes - Round - Amber Lens
- Shop: Right Angle 2-Wire Pigtail for Optronics Trailer Lights - 2-Prong PL-10 Plug - 6" Lead
- Shop: LED Bullet Clearance or Side Marker Trailer Light with Grommet - 3 Diodes - Amber Lens
- Article: How to Wire an Electric Winch
- Q&A: Replacement Option For Norcold N306.3 RV Fridge
- Q&A: How to Wire 12V Battery in Enclosed Trailer to Power Trailer Lights Independent of 7-Way Connection
- Q&A: Can I Disable Solar Charging on the Go Power PWM Solar Charge Controller w/ Bluetooth?
- Article: How to Accurately Measure Trailer Leaf Springs
- Q&A: Leaf Spring Bushings Closest to 1-1/4 Inch Outer Diameter
- Q&A: Replacement Lens For A 2018 Grand Design Solitude 373FB Ova; Flood Light
- Q&A: Picking Out Replacement Lens for Porch Light of 2018 Forest River Cherokee Grey Wolf 26DBH
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Article: How to Charge a Trailer Battery While Driving: 3 Common Problems (And How to Fix Them)
- Article: How Many Batteries Do You Need to Run RV Air Conditioner?
- Article: How to Troubleshoot Your RV Air Conditioner