what type of battery is a car battery

The vast majority of car batteries are some form of lead-acid battery. Lead-acid batteries have plates of lead and lead dioxide and electrolyte inside a polypropylene case. In an AGM (Absorbed Glass Mat) battery, the electrolyte is absorbed in a glass mat separator, which allows AGM batteries to be mounted in a variety of positions, whereas a flooded battery might leak or spill electrolyte if it isnt kept upright. Lithium-ion batteries are also used in some cars, particularly electric vehicles and hybrids.