A longer-range battery carries more than stored energy
Adding battery capacity can extend an electric car's range, but a larger pack can also add weight. That extra mass affects the energy needed to move the vehicle and may change other design requirements. Explore why increasing capacity and increasing range need not be a one-to-one trade.
Questions you could explore
- What determines how far a fixed amount of usable energy will take a car?
- Which parts of a battery system contribute weight without storing energy?
Start reading
- US Department of Energy, Alternative Fuels Data CenterHow Do All-Electric Cars Work?
Identifies the components around an electric vehicle’s battery and explains their different jobs.
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