[Corley]

The best batteries out there today are AGM batteries. They are expensive, but have the best life expectancy, and the best design characteristics. However, good luck finding a 6volt one.

If I had the symptoms originally described, I would want to meter the batteries terminals themselves, and not the cables or beyond. I've experienced several times when the cables, while tight and would not move, had corrosion and no electrical connection to the battery.

Lastly, I hate these newer chargers that won't charge a totally dead battery without the override trick. They just piss me off. That is why I tend to pick up nice looking older chargers at garage sales when I see them. The newer chargers are fine for topping off, but fool you if the battery is too far down on charge.