So as to be a bit less confusing, I will lay out my thoughts on your issue. Seems to be that your batteries are ok seeing as they accepted a charge (although not fully charged yet) from your smart charger and withstood a load test. They are not however charging from your converter/charger. I would replace your converter/charger with a new three stage unit and that should take care of your issues. I would use the smart charger you have to fully charge each battery independently first and then after installing your new unit, keep the rig plugged in at all times and you will be ready to roll anytime you get the bug! If you want to be really ready and want to spend a few bucks, get two new batteries as well and have piece of mind that all will be well. If your chassis battery is still good, you don't have to replace it at the same time, it will not drag down new coach batteries.
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