Recommended Wiring to Power Blue Ox Patriot Portable Braking System
Updated 01/19/2026 | Published 08/13/2024
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Question:
I’m having a complete Blue Ox flatbtow system installed in my motorhome, including a Patriot braking system. However, all of my 12v power ports only work when the ignition is on. Is there a cable that can connect to my USB plug, which is always hot, in my car and then to the Patriot ?
asked by: Danny H
Expert Reply:
Hey Danny, thanks for reaching out!
For your application I recommend installing the 12 Volt Outlet Kit # RM-9332 which connects directly to your battery and gives the Blue Ox Patriot # BLU37TR the power connection it needs.
It isn't recommended to siphon power off of a USB port because you could overdraw it. The Roadmaster 12V kit is designed for a portable brake system though so it will work great for your setup!
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Kate F.
1/19/2026
Hey Danny, how did things go with the 12-volt outlet kit for your Blue Ox Patriot setup? Did it give you the steady power connection you needed for the braking system? Your update could make it easier for others working on the same setup.