'94 Winnebago Brave - Won't start

Sounds a lot like a problem I had years ago. In my case, like you said, battery seemed to charge, but would not start car. To make it short, I had a corroded battery cable! It had corroded inside the insulation, and there were no signs at all on the outside. there sere only a few strands of wire left inside, which did not carry enough to run the starter. Don't know if this would help, but its another thing to check.