How to Charge a 12 Volt Auxiliary Battery for a Winch on a Trailer
Updated 11/27/2017 | Published 11/23/2017
Question:
Im getting ready to install a Badland winch on my 20foot auto hauler. My question is this: Since my vehicle and trailer both have the 7-pin connector could I use the auxiliary 12v+ wire from my 7-pin connector to charge an auxiliary 12 volt battery I will be installing with my winch, it will be installed in a recessed weather sealed box at the tongue of the trailer. Its a 10 awg wire feeding the connector. My towing vehicle is a 2001 Chevrolet Suburban 1500 LS and it came with the 7-pin connector and towing package factory installed.
asked by: Richard K
Expert Reply:
The 7-way trailer connector on your tow vehicle/trailer can be used to maintain a charge on your 12 volt auxiliary battery but will not be powerful enough to charge the battery. Instead, I recommend using a battery charger like the Redarc In-Vehicle BCDC Battery Charger # 331-BCDC1225D which will take power from the vehicle's alternator and use this to charge the auxiliary battery for your winch. Since most winches require a significant amount of power to operate, this will be your best option.
I have attached a review video of the battery charger in addition to a help article that demonstrates how to wire an electric winch for you as well.
Product Page this Question was Asked From
Redarc In-Vehicle BCDC Battery Charger - Dual Input - DC to DC - 12V/24V - 25 Amp
- Battery Charger
- Battery Charger
- RV/Camper
- Trailer
- 12V
- Charges and Maintains
- AGM
- Calcium
- Gel
- Lead Acid
- Lithium
- Solar Panels to Auxiliary Battery
- Vehicle Battery to Auxiliary Battery
- Smart Charge
- Trickle Charge
- Redarc
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Search Results: battery charger
- Search Results: junction block
- Shop: Vehicle Tow Bar Wiring
- Article: How to Wire an Electric Winch
- Search Results: atv winch mount
- Search Results: utility winch trailer winch
- Shop: Bright Way 12V Onboard Battery Charger for Hydraulic Dump Trailers AC to DC - 12V - 10 Ah
- Video: Review of Bright Way Battery Charger - 12V Onboard Battery Charger Hydraulic Dump Trailers - BRW49FR
- Q&A: Recommended Battery for a 12,000 Lb. Electric Car Trailer Winch
- Q&A: Wiring Electric Winch and Options to Charge a Trailer Mounted Battery without a Tow Vehicle Present
- Search Results: wheel bearing caps
- Shop: Redarc In-Vehicle BCDC Battery Charger - Dual Input - DC to DC - 12V/24V - 25 Amp
- Video: Complete Breakdown of the Trailer Wiring Junction Box
- Video: Detailed Breakdown of the Pollak 7-Circuit-Breaker Junction Box
- Q&A: Solar Panel Recommendation for Trickle Charge on Winch Battery
- Q&A: How to Keep Deep Cycle Battery Charged for Winch and Trailer Light Usage
- Q&A: Wiring a Trailer With Dual Batteries and Solar Charger
- Shop: Trailer Wiring Junction Box - 7 Terminals - Polypropylene
- Shop: Trailer Wiring Junction Box
- Shop: Pollak 7-Circuit-Breaker Junction Box
- Shop: Replacement Power Unit for etrailer and Ram Hydraulic Trailer Jacks and Scissor Hoist Systems
- Shop: Curt Tow Bar 7-Way Coiled Power Cord w/ 7-Way Socket - 8' Long
- Video: Manufacturer Discussion - Redarc Battery Charger
- Video: How to Install: Redarc In-Vehicle BCDC Battery Charger on your 2017 Chevrolet Silverado 2500
- Video: All You Need to Know About the Redarc In-Vehicle BCDC Battery Charger
- Video: What to Know About the Redarc In-Vehicle BCDC Trailer Battery Charger
- Q&A: Can I Charge My Trailer Battery Using 7-Way Trailer Connector on Truck
- Q&A: Best Way To Charge A Lithium Battery With A 7-Pin Trailer Plug On A 2021 Ram 2500
- Article: Trailer Wiring Diagrams
- Article: What are the Common Types of Propane Fittings Used on RVs?
on Battery Charger
