Re: Information on battery \"issue\"
From the pic, it looks like you should pull the battery, clean it, and treat your posts on re-installation. If your battery is one of those ID'ed as a defect, your dealer should know. If you see the same problem after a dozen, or so, hours, call your dealer immediately
I guess I learned and accepted that I needed to pull my batteries twice each year for maintenance. I'm not saying there isn't a problem here, just suggesting a seasonal routine.
BTW, I replaced my stock JD Strongbox battery with an Optima within a week of delivery. I still pull it, clean up around it, and treat it like a normal battery every late spring and end of fall. This is not a "zero maintenance" area of a tractor, no matter what brand of battery you have.