Using 12-Volt Feed From 7-Way to Charge Trailer Mounted Batteries

Question:

Will this setup also provide power to charge the batteries in the trailer? And run the 12v accessories in the trailer?

asked by: KC

Expert Reply:

Once installed, the # ETBC7 provides an active 12-volt circuit that can be used to provide a maintenance charge to a trailer mounted battery or minimal power for interior lighting.

The 12-volt circuit from the 7-way lacks the capacity to charge a depleted battery or to power much in the way of accessories. Trailer mounted accessories are usually powered by trailer mounted batteries, or by shore power when its available. When the batteries need a charge, you'd use shore power and a charger like the CTEK #CTEK56353 universal battery charger.

expert reply by: Mike L