You have to temporarily mount the breakaway battery to the trailer. If you have it in the bed of your truck it will not be able to provide power to the trailer brakes if the trailer becomes separated from the truck. The battery connects to the main 12 volt power leads on the trailer resulting in 12 volt power being provided to the entire trailer not just the brakes. I use a small lawn tractor type battery. When the dealers inspect the trailer upon delivery it powers out the slides and awning without issue. Upon sale of the trailer the dealer installs full size deep cycle batteries which get connected in the same way that the breakaway battery had been connected. I have found that on some of the larger more expensive 5th wheels the factory has installed batteries. Resulting in not having to use my own battery.
Break Away Battery
Discussion in 'Expediter and Hot Shot Trucking Forum' started by GearWarrant, Jun 14, 2014.
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That makes sense now. I was wondering what they were trying to say. Is there a danger of the truck overcharging a lawn mower battery and rendering it bad?
What size of lawn mower battery is best...I would imagine one of the larger ones? -
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SHO-TYME Thanks this.
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Every one I have seen has been a small lead acid battery the same size as the ones used in those portable halogen spotlights. Usually mounted towards the front of the trailer to the frame rails. Many times they are disconnected from the factory so you must open the small box the battery is located in and connect the wires.
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When you say frame rails I assume you mean on a travel trailer. A 5th wheel would normally have battery tray in a compartment on most of them I presume. At least on the ones I have owned they did. I have never owned a pull behind; my dad did, but that was a long time ago.
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View attachment 67411 If you don't know what this is or how it works... You've probably never even pulled a boat trailer.
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