The frequency of fast charging, particularly DC fast charging, has a mixed impact on the longevity of electric vehicle (EV) batteries. Here’s a summary:
Effects on Battery Longevity
- Fast Charging vs. Rapid Charging: Fast charging, typically up to 22kW, does not negatively impact EV battery life if good charging habits are followed. However, frequent use of rapid DC charging can slightly increase battery degradation compared to slower charging methods.
- Rapid Charging and Degradation: Rapid charging involves high currents and voltages, which can cause higher temperatures and strain on the battery, potentially accelerating degradation over time. Studies indicate that while frequent DC rapid charging may slightly increase battery degradation, the overall impact is generally minimal for well-managed batteries.
- Factors Influencing Battery Longevity:
- Temperature: Extreme temperatures can significantly affect battery health, but modern vehicles often have thermal management systems to mitigate this risk.
- Charge State: Maintaining the battery charge between 20% and 80% is advised to prolong its life.
Management Tips
- Limit Frequent Rapid Charging: Save rapid charging for when necessary and use fast or Level 2 charging for regular needs.
- Preconditioning: Ensure battery preconditioning in extreme temperatures for optimal charging efficiency.
- Use Thermal Management Systems: These systems help maintain the optimal battery temperature during fast charging.
In summary, while frequent rapid charging may slightly affect battery longevity, the impact is typically minimal, and appropriate management can help maintain battery health.
Original article by NenPower, If reposted, please credit the source: https://nenpower.com/blog/how-does-the-frequency-of-fast-charging-affect-battery-longevity/
