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Extensive Study Reveals Fast Charging Has No Impact on EV Battery Degradation

Extensive Study Reveals Fast Charging Has No Impact on EV Battery Degradation

Fast Charging

In a recent comprehensive investigation, Recurrent Auto has unveiled its findings on the long-term effects of fast charging on EV battery health. The essence of the research boils down to this: there appears to be no detrimental impact on battery health due to fast charging.

It’s worth noting that this study specifically pertained to Tesla vehicles, namely the Model 3 and Model Y. However, the dataset encompassed an impressive 12,500 vehicles, lending a high level of credibility to the results.

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Recurrent Auto conducted a comparative analysis of battery health between two groups: one that employed fast charging for over 90% of their charging sessions, and another that utilized it for less than 10%. Astonishingly, no statistically significant differences were observed between these two groups.

The article outlines certain scenarios in which fast charging could potentially harm the battery, such as during extreme temperature conditions (both low and high) or when the battery is at a very low or high charge state. Fortunately, EV manufacturers have proactively addressed these scenarios through a combination of software and hardware solutions.

For instance, the critical practice of battery pre-conditioning has emerged as paramount, ensuring the battery cells reach the optimal temperature for efficient charging. Furthermore, the software algorithm takes control once the battery charge reaches 80%, moderating the charging speed to mitigate degradation. In fact, Recurrent suggests opting for a slower tier 2 public charger, as counterintuitive as it may sound, as this might offer a quicker and more cost-effective solution for those final kilowatts.

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