Heat is a notorious killer of conventional batteries. It would be interesting to know what kind of battery it was, the in service date, mileage, and if it was tendered.
The Yuasa in my ST just died yesterday, tendered all of its life, in service date was 8/04 with 48K on the clock. I rolled it out of the garage, hit the starter button, and nada. I just did 1650 miles down to Mt. Airy, NC the week before last with no issues.
"FRIENDS DON'T LET FRIENDS EARLY APEX."