Battery Charger and Converter for Enclosed Car Hauler

Question:

Good morning, I have an enclosed car trailer that already has a breakaway small battery and I am adding a winch to pull the vehicle into the trailer as well as a powered tongue jack for leveling. I also have a solar battery tender I want to install on the roof of the trailer to maintain this battery. Is there a wiring diagram you can supply for this setup? Also can I eliminate the small breakaway battery and just use the single battery to power all trailer functions? Lastly…. Can I also have the tow vehicle charging the battery while I’m towing and the battery tender take over while it’s unhooked automatically?? Thank you very much in advance!!!

asked by: Brett M

Expert Reply:

To charge your enclosed car trailer battery and power your accessories you're going to need the Redarc In-Vehicle BCDC Battery Charger - Single Input - DC to DC - 12V/24V - 12 Amp item # RED96FR. You are also going to want the 23-Amp MIDI Fuse Kit for Redarc In-Vehicle 12-Amp BCDC Battery Charger item # RED76FR to connect to your battery and the Universal Mounting Bracket for Redarc BCDC Battery Charger item # RED53FR for installation. This charger can use both your vehicle battery as well as a solar panel to charge your car trailer battery. It will use your solar panel first and draw from your truck as needed. It has a battery isolator so it won't take power from your truck battery when it is off, only when it's running. You are going to need to keep your breakaway battery. I have attached a diagram.

expert reply by: Jerred H