Charging Your Trailer Battery with a 7-Pin Plug
Want to keep your trailer battery charged while driving? A 7-pin trailer plug makes it possible. By using the 12V auxiliary power wire, you can send power from your vehicle to your trailer battery. For best results, use 10-gauge wire, add a fuse for safety, and consider a DC-DC charger if your vehicle has a smart alternator. Don’t forget a battery isolator to protect your vehicle’s battery. Simple setup, reliable power—no more dead batteries on the road.
