Well, I finally found the time to change out my 6 coach batteries and install a new charger. This still had the original chargers from 1985 but only one was plugged in - I assumed the other was inoperable.
I will say it was some work. The bolts were rusted and you needed to be in two places at once (under the wheel well and in the engine area. The factory was ensuring that if the coach ever fell off a cliff into the Grand Canyon, the battery chargers would remain attached to their perch!! They are very ackward to get to and pull out but I prevailed without using hammers, saw, or swearing! I think I sweat about 2 gallons of water though. I had to drill a few new holes to properly mount the new charger but that wasn't an issue since I have an attachment for my drill that requires little clearance.
Since I rarely dry camp, I decided to go with regular 6v batteries vice the AGM. The battery tray was full of dirt and rusted tray. I scraped
almost a gallon of dirt and rust particles from the tray! I wish I'd have bought some cleaner and paint to give it a new look. Of course, the batteries were heavy but they all installed nicely and the system seems to be charging properly.
I ended up with sore knees, arms and back. But, I am happy I have resolved another problem with this coach. I still have several other things to do (new awning, a few rust spots, hardwood floor, etc.
I look forward to meeting many of you at the Flying Flags gathering in Buellton, CA on 16/17 Oct.
Jerry
85 PT40, Pt. Hueneme, CA