The only good thing about buying from a mall kiosk. I had the same thing happen and apparently it was a sign of impending doom. I had a bad carto that ended up frying the battery. Once the battery was fried, any carto that touched it would fry and battery, and so on and so on. The kiosk guy went
through a few of each before he realized the extent.
Careful with that battery. I have no idea what that pattern actually means, but for me it wasn't good!