BYD ultra-fast charged the Yangwang U7 350 times in 9 days — here's what happened to the battery

BYD stress-tested ultra-fast charging on the Yangwang U7, which can charge from 10% to 97% in just 9 minutes. The car underwent 350 consecutive charging cycles over 9 days to measure the impact on battery health. The test was designed to determine whether extreme rapid charging causes permanent battery degradation.