What effect does an electric vehicle's weight have on its range?

The weight of an electric vehicle (EV) plays a significant role in determining its range. Heavier vehicles generally require more energy to accelerate and maintain speed compared to lighter ones. This increased energy consumption is due to the need to overcome inertia, particularly during start-up and acceleration. As a result, a heavier vehicle drains its battery more quickly, which translates to a reduced driving range.

It's also worth noting that energy efficiency in electric vehicles is influenced by various factors, including aerodynamics, tire resistance, and rolling resistance, but weight remains a primary concern. A heavier vehicle must expend more kilowatt-hours per mile driven, making it less efficient overall in terms of range. Consequently, it is widely accepted in the field of electric vehicle design and engineering that reducing weight can significantly enhance range and efficiency, allowing for more effective battery use and improving overall performance.