Capacity changes over time

EV battery degradation

Learn how EV battery degradation is measured and which factors matter when comparing a used electric vehicle.

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Battery degradation is not one universal curve. Chemistry, thermal management, age, charging behaviour, climate and usage all matter. A useful checker should show assumptions rather than a magic percentage.

What ScopeThisCar is designed to check

  • Calendar and cycle ageing context
  • Chemistry and thermal-management differences
  • Fast-charging claims treated cautiously
  • Measured data preferred over estimates
Questions

What to know

Does fast charging always damage an EV battery?

Not in a simple yes/no way. Effects depend on chemistry, temperature, charge level, frequency and vehicle controls.

Can two same-age EVs have different battery health?

Yes. Usage and environment can create meaningful differences.

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