Can Blue Ox Patriot Braking System be Powered by 12V Wire from RV 7-Way
Updated 07/21/2025 | Published 04/17/2019
Products Featured in This Question
Question:
Is the 12V power line from the Motorhomes 7 pin connector adequate to power the Blue Ox Portable Brake unit?
asked by: Jeff S
Expert Reply:
The Blue Ox Patriot Portable Braking System # BLU37TR referenced in your question is designed to draw power from the battery in the towed vehicle by simply plugging in the included 12V cigarette outlet adapter inside the vehicle.
It's very unlikely that the 12V wire from the RV's 7-Way (which would instead be getting power from the RV's battery) would carry enough amperage to reliably power the Patriot by the time it reached towed vehicle. Because of this and the fact that the install would be much more complex I do not recommend hooking up the unit in this manner.
If you have the 2018 Ford Focus that you listed you will need to add the 12V Outlet Kit # RM-9332 which will get wired directly to the battery. I have attached an install video that you can use for reference.
Product Page this Question was Asked From
Blue Ox Patriot Portable Flat Tow Brake System - Proportional
- Flat Tow Brake System
- Brake Systems
- Proportional System
- Every-Trip Setup
- Built-In Battery
- Portable System
- Power Assist Brake Compatible
- Air Brakes
- Air Over Hydraulic Brakes
- Hydraulic Brakes
- Wireless Display
- Blue Ox
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Shop: Vehicle Tow Bar Brake System
- Search Results: rm 88400
- Search Results: blue ox patriot
- Search Results: blue ox patriot 3
- Search Results: bx88285
- Search Results: roadmaster breakaway kit
- Search Results: roadmaster
- Search Results: curt 58903
- Video: CURT RVibrake Towed Battery Charger+ Comprehensive Review
- Shop: Base Plate for Tow Bar
- Shop: Blue Ox Patriot Portable Flat Tow Brake System - Proportional
- Shop: OptiMate Panel Mount Power Socket with SAE to Auto Plug Kit - 12V
- Shop: OptiMate Panel Mount Auto Power Socket - 12V
- Shop: Curt RVibrake 4 Portable Flat Tow Brake System - Wireless Monitor - Proportional
- Shop: Vehicle Tow Bar Wiring
- Shop: Blue Ox Base Plate Kit - Removable Arms
- Video: Comparing Portable Flat Tow Braking Systems - Curt RVi and Blue Ox Patriot
- Shop: Roadmaster Brake-Lite Relay Kit for Towed Vehicles
- Shop: Blue Ox 7-Wire to 6-Wire, Coiled Electrical Cord
- Article: Flat Towing Package for 2007-2018 JK Jeep Wrangler and Wrangler Unlimited
- Video: Install: Roadmaster 7-Wire to 6-Wire Flexo-Coil Kit on a 2016 Jeep Wrangler Unlimited
- Shop: Trailer Wiring
- Q&A: Does the Blue Ox Patriot Press Hard Enough to Activate Brakes of Vehicle Turned Off
- Q&A: How Does The Blue Ox Patriot Flat Tow Braking System Work?
- Q&A: Is Brake-Lite Relay Required on 2016 Jeep Wrangler for Flat Towing with Supplemental Braking System
- Q&A: Is Brake Lite Relay Needed When Flat Towing 2016 Jeep Wrangler with Invisi Brake
- Video: Best 2016 Jeep Wrangler Unlimited Flat Tow Set Up - Tow Bar Braking System
- Shop: Brake Controller
- Q&A: How to Power Blue Ox Patriot Braking System When Vehicles Negative Battery Cable Is Unhooked
- Q&A: How to Power the Blue Ox Patriot While Flat Towing a 2020 Jeep Gladiator
on Flat Tow Brake System
Phil M.
7/21/2025
the Blue Ox works great until it looses power.