Hyundai HX300L - Manual (Page 101)

5. Maintenance
5-17
Attention
Do not dipose the batteries. Dispose of the battery with industrial waste
acoording to the laws and other rules in the country where the controller
is installed.
Do not recharge the batteries, otherwise batteries may result in exploding
or everheating.
Do not use any batteries other than the recommended one.
Change the batteries only with the specified one.
Do not short positive and negative terminals of battery.
Do not expose batteries to high temperature or flame