Here's why:
* Durability: Polypropylene is known for its strength and resistance to impact and chemicals. This makes it ideal for the tough environment of a car battery.
* Chemical Resistance: It can withstand the corrosive effects of the battery acid.
* Heat Resistance: Polypropylene can handle the high temperatures generated by the battery during operation.
* Cost-Effectiveness: Polypropylene is a relatively inexpensive material, making it a practical choice for mass production.
While polypropylene is the most common plastic used, some other plastics might be present in specific components of the battery, but the main container is usually made of polypropylene.
