Could Charge Circuit of Trailer Breakaway Kit Be Ran from Running Light Circuit instead

Question:

Hello Is not missing a 20 amp circuit breaker between the + of the battery and the breakaway switch ? Also is it possible to connect the red wire that suppose to charge the aux battery on the wire of tail lights instead of pulling one from the vehicule positive battery ?

asked by: Raiarii R

Expert Reply:

There doesn't need to be a breaker between the positive and negative wires of the switch of the Curt Breakaway Kit part # C52040. It would be possible to use a running light circuit to run to the charge wire of this kit and there would be a light charge that would occur but the problem is that the running light circuit typically only carries a fraction of the amperage compared to the 12 volt accessory circuit with this being partially due to the much lower gauge wire used for this circuit. Typically 12 volt accessory is 12 or 10 gauge and running light is typically 16 to 18 gauge.

expert reply by: Jameson C