I have a 2019 F350. Your charge line (as mentioned in a previous post) is most likely not working. I had my dealer look at it before I took delivery, and they had to put a fuse in the fuse box before it would work. It was explained to me (by my dealer) that Ford ships their trucks without that fuse in place. I tow a Big Horn camper with a residential fridge and don't have any problems keeping the batteries charged, even after boon docking several nights in a row. Just driving during the day charges my batteries fully.
|