Can I Run the Blue Ox Patriot Braking System On It's Own 6 Volt or 12 Volt Battery?
Updated 04/16/2026 | Published 04/06/2026 >
Products Featured in This Question
Question:
Am I able to use an auxiliary 6 volt or 12 volt battery for power rather than draining my Jeep battery all day? Any problems or concerns with fuses or anything attaching directly to an auxiliary battery?
asked by: Chris W
Expert Reply:
Hello Chris,
You can run the Patriot off an auxiliary 12V battery, but it’s not something I’d recommend as a long-term solution.
The unit is designed to pull from the Jeep battery, and the draw is actually pretty low. If your battery is going dead while towing, it’s usually other systems in the vehicle pulling power, not just the Patriot itself.
With a separate battery, the biggest concern is reliability. If that battery runs down, you lose power to the braking system. You’d also need to wire it correctly with an inline fuse (around 15 to 20 amps) and make sure all connections are solid so you don’t run into voltage drop or intermittent issues mid tow.
It sounds like your main concern is avoiding a dead battery or any fuse or connection problems while you’re on the road. The more dependable fix is adding a charge line kit like the Roadmaster #RM-156-25. That will keep your Jeep battery charged from the motorhome while you’re towing, so the Patriot always has steady power and you’re not at risk of arriving with a dead battery or losing braking along the way.
Install is pretty straightforward. You’re basically running a 12V charge line from the motorhome’s 7-way to the Jeep battery with built-in protection, so it charges while you drive but won’t backfeed when parked.
Do you already carry a jump starter or portable battery with you on Jeep trips, or are you mainly trying to avoid needing one altogether?

Doug
4/14/2026
I have used the Patriot braking system in conjunction with a battery charge line from my coach. They make a kit to wire a trickle charge line to your jeep battery and then you can install a second 12 volt direct battery connect plug for your patriot system. Has seemed to work great.

Jim B.
4/14/2026
I added a Road Master battery cutoff and a charge kit. Towing a Tahoe behind a 40’ diesel pusher. No issues with the battery keeping charge. The Patriot brake itself I am not thrilled with. Three issues. 1) Regularly switches to a software update screen that I have to acknowledge while driving to get the display of the brakes back. Contacted Blue Ox and they said the firmware is for a furniture version and that my unit cannot be updated without sending it back. Not an ideal situation as it distracts me while driving 40k pounds down the highway. 2) Unit often reports needs a reset which requires me to pull off the highway to do. 3) reports brakes applied often while there is no deceleration. Makes me nervous that it could be burning up my brakes. I would not buy this unit again. Causes me a lot of stress while traveling, should be giving me piece of mind. Easy to setup but can’t say it is a reliable system. Sorry, just how I deal after driving 5,000 miles with it in use.




Greg W.
4/14/2026
Chris, I connect my patroit to a separate 12v optima red top battery placed behind the driver seat when fllat towing my Bronco. I have the same concerns about affecting the vehicle battery voltage since ford uses electronic means to put the vehicle in neutral tow mode and have read horror stories about low voltage disengagement of the system. I do have the vehicle battery charging via the motorhome but wanted to have extra peace of mind. I charge the optima after 2 days of use and disconnect it overnight Battery drain seems minimal based on voltage testing Probably belt and suspenders logic but it works for me.


Mark
4/14/2026
We have successfully traveled over 12,000 miles with our Patriot brake system. We have always powered it either with our Jackery 240 or Jackery 1000. Works great and no need for a charge line and no worry that I will deplete the Jeep battery. Even after driving for 7+ hours, even the small Jackery 240 goes down only about 3-4%. I could go days without recharging it at that rate (even though I always charge it full before the next tow just to be on the safe side). The only two issues we have had with the Patriot brake (again, over 12,000 miles traveled with it so far) is: One time, it would not set up correctly and we had to do a hard reset, which took just a few extra seconds of holding two buttons simultaneously. And more recently, the claw slipped off the Jeep brake pedal while underway. So from inside the RV, it appeared via the wireless display that the system was working fine, but in reality it WASN’T and the RV was doing all the braking for both vehicles, which could have been dangerous. So I have reset the feet on the bottom to give the Patriot a better angle, and will now routinely check the claw/brake pedal at each fuel stop as part of my normal walk around/inspection.

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
- Shop: Blue Ox Patriot Portable Flat Tow Brake System - Proportional
- Shop: Vehicle Tow Bar Wiring
- Search Results: tow bar
- Shop: Base Plate for Tow Bar
- Search Results: base plate for tow bar
- Search Results: wireless tail lights
- Search Results: wireless tow lights
- Search Results: curt tow bar
- Search Results: curt
- Search Results: flat tow lights
- Video: Easily Install Your Roadmaster 12 Volt Outlet Kit - 2026 Ford Bronco
- Shop: Blue Ox 12 Volt Power Outlet Kit - Direct Wire - 15 Amp - Qty 1
- Shop: Roadmaster 4-Diode Universal Wiring Kit for Towed Vehicles - 7-Way to 6-Way Coiled Adapter Cord
- Video: Blue Ox Base Plate Kit DIY Installation - 2026 Ford Maverick
- Shop: Curt Rambler Non-Binding Tow Bar - RV Mount - 2" Hitch - 7,500 lbs
- Shop: Roadmaster Front Anti-Sway Bar - 1-3/4" Diameter
- Shop: Roadmaster Battery Charge Line Kit for Towed Vehicles
- Shop: Blue Ox Towed Vehicle Battery Charge Line Wiring Harness
- Video: Blue Ox Patriot Portable Flat Tow Brake System Set Up - 2025 Ford Maverick
- Shop: Brake Controller
- Video: Installing the Roadmaster Battery Charge Line Kit on a 2025 Ford Maverick
- Shop: Trailer Hitch
- Video: Set up: Roadmaster Front Anti-Sway Bar on a 2020 Thor Windsport Motorhome
- Q&A: How to Power Blue Ox Patriot Braking System with Vehicle that Requires Battery Disconnected
- Q&A: Charging the Battery on a Towed Vehicle While Towing It
- Q&A: Why Should You Disconnect The Battery When Flat Towing
- Video: Install: Blue Ox Patriot Portable Flat Tow Brake System on a 2022 Jeep Wrangler Unlimited
- Video: Setting up the etrailer Invisible Base Plate Kit on a 2007 Jeep Wrangler
- Q&A: Choosing Between the Brake Buddy Select 3 and the Blue Ox Patriot Supplemental Braking System



Jose B.
4/14/2026
Hi Chris I agree with Kate the charge line kit is the way to go. The installation is easy and straightforward. I have not had any issues with either my jeep or motorhome during towing.