How it affects range:
- Higher capacity = longer range: A battery with more kWh can power the electric motor for more miles before recharging.
- EPA-rated range: In the U.S., the Environmental Protection Agency (EPA) provides official range estimates based on standardized testing.
- Usable capacity: Not all of the battery’s full capacity is available — a buffer is reserved to protect longevity.
In short, more kWh generally means more miles, but driving style, weather, terrain, and speed all influence real-world range.