Charging Trailer Winch Battery from Battery in a 2006 Dodge Ram 2500

Question:

I would like to charge my trailer winch battery from the tow vehicle while running. The tow vehicle is a 2006 Dodge Ram, 2500 with 7 pin connector. What will I need to make this work without overcharging the batter or draining the tow vehicle battery when not running?

asked by: Mike

Expert Reply:

The best thing you can do is connect the Redarc In-Vehicle BCDC Battery Charger # 331-BCDC1225D to the 12V Power wire on the 7-Way connector and then connect your battery to it. This not only charges your battery but it also maintains it to keep from overcharging. It will not pull power from your starter battery when the ignition isn't on.

For times when you may be sitting for a while and you would like your battery to still charge you can also throw a solar panel like part # PTW2997 in the mix.

Attached is a digram showing how to connect everything.

expert reply by: Jon G