Automotive batteries are primarily classified under two hazard classes depending on their type:
- Class 8 – Corrosive Substances : This class includes lead-acid batteries (the most common automotive battery type), AGM batteries, and nickel-cadmium batteries. These batteries contain corrosive substances like sulfuric acid and potassium hydroxide that can cause chemical burns and damage to living tissue or materials if mishandled.
- Class 9 – Miscellaneous Dangerous Goods : This class includes lithium-ion batteries and nickel-metal hydride (NiMH) batteries used in hybrid and electric vehicles. These batteries present risks such as fire, explosion, and release of toxic fumes but do not fit into other specific hazard classes.
Thus, automotive batteries are examples of hazard Class 8 if they are lead-acid or similar corrosive types, and hazard Class 9 if they are lithium-ion or similar advanced battery types.
