EVER HOT TERMINAL?
First long trip with our new to us 2018 Ford Explorer with factory tow package. I easily installed my Prodigy brake controller. On our first long trip we noticed trailer batteries are not charging w...
Forum Discussion
7 pin is pretty worthless for charging battery anyways, conductor is too small. If you want to actually put some juice in the battery add a dedicated charge cable. There's plenty of info on different ways to do this out there, but the involve either bigger cables, converting to AC and then back to DC, or upping the DC voltage and stepping it back down. You also have to consider load on the alternator and how to limit it or add an additional alternator dedicated to charging.
