Coach battery charging while underway
I've noticed while en route back to Oregon, our coach batteries will heavily charge after being plugged into shore power after our day's trip. We've never seen this before, perhaps the TV alternator is not charging them while underway. We have a residential fridge, which draws less than 2A AC (probably about 20A DC). The F350 has a 225A alternator which should keep up the battery charge with no problem. Anyone got ideas, or has anyone else experienced this problem before?
Jim & Mary 2013 36 RL with Titan Disc Brakes Residential Fridge Goodyear 17.5 H rated tires MORryde IS, MORryde pin box 2015 Ford F350 King Ranch DRW