This Ex-Rental Tesla's Battery Was Heavily Degraded. Then The Decline Slowed

A Tesla Model 3, previously used as a rental car, experienced significant battery degradation in its initial two years, losing approximately 20% of its capacity. However, data collected over the subsequent period indicates that the rate of degradation has substantially slowed, nearing a plateau. This observation challenges the common expectation that batteries in high-utilization vehicles, such as rentals, will continue to degrade linearly or even accelerate their decline. The specific metrics of this slowdown, such as the percentage of capacity retained after a total number of years or miles, are not detailed but the trend suggests a potential resilience in Tesla's battery technology under prolonged, heavy use. This case study offers a counterpoint to concerns about the long-term viability of electric vehicle batteries in commercial or shared fleets.