5-Year Test of 500,000 EV Batteries Including Tesla Finds Best Aging
A five-year diagnostics study tracked capacity fade and degradation in 500,000 EV batteries across 20 popular models. In the 50km test, the Hyundai Ioniq 5 retained a median 97% of capacity, narrowly ahead of the Mercedes-Benz EQA at 96.56%. Most models scored above 90%, and the 150km test topped with the EQA at 93.97%.