The world of electric vehicles (EVs) is a competitive arena, with brands vying for dominance in a market that's constantly evolving. A recent study conducted by a Swedish used EV marketplace, Carla, has shed light on the battery health of various EV models, revealing some surprising findings. The study analyzed data from 9,954 battery health tests conducted between 2022 and 2026, with a focus on battery capacity retention after 62,000 miles.
The results showed that the top three performers in terms of battery health were all South Korean brands. The Kia e-Niro and Hyundai Kona, both equipped with 64kWh batteries, retained an impressive 97.25% and 97.18% of their capacity, respectively. The Kia EV6, with a larger 77.4kWh battery, still managed to retain 95.95% of its capacity.
This finding is particularly intriguing, as it challenges the common perception that EVs suffer significant battery degradation over time. The study's findings suggest that, contrary to popular belief, EVs can maintain a high level of battery health even after extensive mileage. This is a crucial consideration for potential EV buyers who may be concerned about the long-term reliability of their vehicle's battery.
What makes this study even more fascinating is the inclusion of well-known brands like Tesla, Audi, and BMW. While Tesla does have four of its models on the list, the results indicate that even these high-profile brands are not immune to the challenges of battery degradation. For instance, the Tesla Model 3, a popular choice among EV enthusiasts, retained only 93.34% of its capacity after 62,000 miles.
The study also highlights the importance of battery chemistry and manufacturer. The Polestar 2, for instance, showed varying results depending on the battery chemistry used. The CATL-equipped model retained 94.35% of its capacity, while the LG Chem-equipped version managed only 93.53%. This variation in performance underscores the need for buyers to consider the specific battery chemistry and manufacturer when choosing an EV.
One of the most intriguing aspects of this study is the relatively high battery health of the 'last place' car, which retained 91.7% of its capacity. This challenges the notion that battery degradation is an insurmountable issue, suggesting that even lower-end EVs can maintain a respectable level of battery health over time.
In conclusion, this study provides valuable insights into the battery health of various EV models, offering a more optimistic outlook on the longevity of EVs. It highlights the importance of considering battery chemistry and manufacturer, as well as the potential for even lower-end EVs to retain a high level of battery health. As the EV market continues to evolve, such studies will play a crucial role in guiding consumers towards informed decisions.
