Charge Line to go From Tow Bar Wiring to Vehicle Battery
Published 10/27/2021 >
Question:
we just switched from a 5th wheel to a motorhome, have a 7 way on back of motorhome, to a 6 way on car,need to wire car end6 way with charge to car battery,proper wiring goes from what to watt, there is no brake controller, and the car has a roadmaster 9160 air operated brake system.
asked by: Monte H
Expert Reply:
We have the Roadmaster Battery Charge Line kit part # RM-156-25 which was designed specifically for what you are looking for. This will connect the positive post of your towed vehicle battery to the charge line on your tow bar wiring so that the battery will charge while it's being towed.
Product Page this Question was Asked From
Roadmaster Battery Charge Line Kit for Towed Vehicles
- Accessories and Parts
- Flat Tow Wiring Harness
- Battery Charge Line Kit
- Roadmaster
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Q&A: Recommended Flat Tow Setup For 2022 Ford Escape Plug-In Hybrid Using Blue Ox Tow Bar
- Article: Trailer Wiring Diagrams
- Article: Best Vehicles to Flat Tow Behind an RV
- Q&A: Which is Better Roadmaster or Blue Ox Tow Bar
- Q&A: Recommended Parts for Flat Towing a 2025 Ford Maverick
- Article: Must-Have Flat Towing Components
- Q&A: Choosing Between the Brake Buddy Select 3 and the Blue Ox Patriot Supplemental Braking System
- Q&A: Full Flat Tow Setup For 2023 Ford F-150 and 2026 Jayco Greyhawk
- Q&A: Will Demco Base Plate Fit 2026 For Maverick Hybrid Lariat
- Q&A: Does the Curt Base Plate Kit Work w/ the Ford Modular Bumper on a 2025 Ford Bronco Everglade?
- Article: Flat Towing Package for 2007-2018 JK Jeep Wrangler and Wrangler Unlimited
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Article: How to Choose a High-Low Adapter
- Article: Wiring Trailer Lights with a 6-Way Plug (It's Easier Than You Think)


