The growing environmental concern and increasing fuel costs have fueled the popularity of electric vehicles, especially in the two-wheeler segment.The battery pack is a crucial component of electric vehicles that powers the motor and the vehicle itself.Electric vehicle batteries typically account for about half of the vehicle cost, making it important to understand the types of batteries used.Lithium-ion batteries are the most widely used type in electric vehicles due to their high energy density and long lifespan.Other types of batteries used include Nickel-Metal Hydride and Lead-Acid batteries, each with its own characteristics and applications.Factors to consider when choosing a battery type for an electric vehicle include range, lifespan, safety, and cost.Lithium-ion batteries are preferred for their high energy density, lightweight design, and ability to hold a charge for an extended period.NiMH batteries are a more affordable alternative suitable for hybrid vehicles that utilize regenerative braking.Lead-acid batteries, while an older technology, are still used in some electric vehicles with shorter lifespans and lower energy density.Overall, lithium-ion batteries dominate the electric vehicle market due to their performance, efficiency, and reliability.Looking ahead, advancements in battery technology may lead to even safer, more cost-effective options for electric vehicles.