Using 12-Volt Accessory Feed From Trailer Connector to Maintain Battery on Pop-Up Trailer

Updated 07/21/2011 | Published 07/20/2011

Question:

Can i use the blue aux circuit to charge the battery on the pop up trailer?

asked by: Kevin B

Expert Reply:

Typically, the blue wire on a 6-way connector is used to carry the output voltage from the brake controller.

The 12-volt auxiliary feed, which usually feeds the center pin on the trailer connector can be used to maintain a fully charged battery, but will not have enough amperage to charge a dead battery.

expert reply by: Mike L