Electric golf cars use golf car batteries. These batteries are the main source of power. There various types of batteries which are lead-acid and lithium-ion. Even though lithium-ion batteries are expensive, they have many benefits such as longer lifespan, faster charging, and denser energy. Moreover, lead-acid batteries are more affordable making them popular. Proper maintenance of golf car batteries such as checking the fluid levels and recharging frequently greatly improves their performance and lifespan.