Forum Discussion
pennstaterv
Apr 15, 2015Explorer
The 'trailer battery charge' circuit in my truck panel is fused at 20.
I attached the HBA16 wiring diagram. It shows connecting to a "25-40amp circuit from tow vehicle". I understand what you are saying, and the trailer battery is part of the circuit for the breakaway switch, but I wouldn't want to rely on the trailer battery for the brakes on a regular basis. Don't trust a trickle charge to keep up with the use of my braking... I believe it has to be powered from the truck alternator via my 7-pin plug.
I attached the HBA16 wiring diagram. It shows connecting to a "25-40amp circuit from tow vehicle". I understand what you are saying, and the trailer battery is part of the circuit for the breakaway switch, but I wouldn't want to rely on the trailer battery for the brakes on a regular basis. Don't trust a trickle charge to keep up with the use of my braking... I believe it has to be powered from the truck alternator via my 7-pin plug.
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