The batteries were taken straight out of the box and put on shelves, they were airfreighted! to us and we could not find anything wrong with the boxes. We reported the incident to the manufacturer of the SART and sent them the affected battery which they in turn passed on to the battery manufacturer. The only feedback we got was that they could not find any faults. I left the company a few months later, unrelated.
That particular battery is now obsolete so I am unable to find any dimensions or chemical composition data. Happened about 8 years ago.
And yes, this was a RADAR transponder.
Per