Also a word of note on the clock on the KTM. They have been known to have strange parasitic drain on the battery, some discharging the battery enough that in a 2 week period , she won't turn the starter. IT is out there., some have it , some don't. Many seek for the answer, most have no clue. As for your battery, if it was trouble at the terminal or a bad cell, your bike wouldn't re-start so easily, once a cell is shorted, the 12Volts needed to turn the starter, are no longer there. AND since yours is fuel injected, I guarantee that it wouldn't run on less than 12 volts.
2015 BMW R1200RT 600 miles
2003 Harley XL883 CAFE