In rare instances the battery may overheat or spark, which can generate smoke and flames.
Panasonic believes that there is 1 defective battery in every 150,000 units.
Panasonic NKY442B2 batteries with serial numbers beginning with RA16 and RA17
Please see image for location of this serial number.
Panasonic NKY442B2 batteries supplied with KTM E-Bikes.