Advancements in battery technology significantly affect electric vehicle (EV) performance by improving energy density, charging speed, and overall efficiency. Innovations such as lithium-ion and solid-state batteries enhance range and reduce weight, allowing EVs to travel longer distances on a single charge. Additionally, faster charging capabilities decrease downtime for users, making electric vehicles more practical for everyday use. These advancements not only contribute to better performance but also play a critical role in the widespread adoption of electric vehicles, addressing environmental concerns and promoting sustainability.