Which type of battery is considered to be the most common in vehicles?

The lead-acid battery is considered the most common type of battery used in vehicles primarily due to its proven reliability, cost-effectiveness, and sufficient power output for starting internal combustion engines. Lead-acid batteries are well-known for their ability to provide the high surge currents necessary to crank an engine and support various electrical components when the engine is off. Their design has been optimized over several decades, making them a ubiquitous choice for automotive applications.

Moreover, lead-acid batteries can endure a considerable number of charge and discharge cycles, though they do have limitations regarding weight and overall energy density compared to newer technologies. However, these batteries are well understood in terms of maintenance, performance, and recycling, which further solidifies their dominance in the automotive sector.

While other battery types, such as nickel-metal hydride and lithium-ion, are used in certain hybrid and electric vehicles, they do not match the historical prevalence and widespread application of lead-acid batteries in conventional vehicles. Alkaline batteries, while common in household electronics, are not designed for the high-amp demands of automotive applications. Therefore, the lead-acid battery remains the standard and most familiar choice in the automotive industry.