Battery Capacity of Electric Vehicles Remains Over 80% After 200,000 Km: The Transformation of Resale Value Throughout Vehicle Stages

In recent years, electric vehicle (EV) batteries have been a subject of interest, with concerns about their lifespan and durability. However, a new study by the P3 Group has shed light on the real-world performance of EV batteries, debunking some common myths and highlighting the significant advancements in battery technology.

Contrary to earlier media reports, the study shows that battery capacity loss occurs gradually in EVs. This gradual degradation is influenced by two primary factors: calendar ageing (time-related) and cyclic ageing (usage-related). Despite these factors, most EV batteries retain their capacity well.

Currently, most electric vehicle manufacturers offer battery warranties of 8 years or around 160,000 to 192,000 kilometers, guaranteeing at least 70% of the original capacity during this period. Tesla specifically offers an 8-year or 192,000 km warranty on its batteries, which is among the longest guarantees available. Some manufacturers are even extending their warranty terms, offering up to 10 years or 1,000,000 kilometers, reflecting their confidence in the robustness of battery technology.

The study revealed that the end-of-warranty phase, which typically begins after eight years or 160,000 kilometers, does not significantly impact battery capacity. In fact, the P3 Group found that most EV batteries retain over 80% of their capacity even after 200,000 kilometers.

Technological advances in cell chemistry, thermal management, and battery management systems have significantly improved battery durability. After the end-of-first-life phase, EV batteries can often be repurposed for second-life applications such as home energy storage systems. The end-of-second-life phase signifies the battery's unsuitability for further use, but it remains valuable for its recyclable materials like lithium and nickel.

The study used real-world data from over 7,000 vehicles for its findings. It also emphasized the importance of moderate charging habits, such as keeping the battery between 20-80% State of Charge (SoC) and avoiding extreme temperatures, to extend battery life. Frequent fast charging or repeatedly draining the battery to near-zero can significantly speed up degradation.

In conclusion, the study provides reassuring evidence that EV batteries are more durable than previously thought. With advancements in technology and responsible usage, EV batteries can provide reliable power for many miles, making electric vehicles a viable and sustainable option for the future. Furthermore, the recycling of EV batteries remains valuable, ensuring that essential materials like lithium, nickel, and copper can be recovered and reused, contributing to a circular economy.

Battery Capacity of Electric Vehicles Remains Over 80% After 200,000 Km: The Transformation of Resale Value Throughout Vehicle Stages