If the plates were pushed closer together, a hot spot may not show up for a while then normal sulfation may cause a short, a very high quality (and there is a big difference) thermal imager may show this. An infrared thermometer will not show an issue until after the fact.
The difference in what you can see with a $1,000 or a $15,000 thermal imager is amazing.
"thermal imaging, florida
surveyor" and you will find several in Florida
. Hire only a "level III" certified thermal imager. These things are not nearly as simple as they look.
In the mean time I would not use that battery.