Despite having fewer than 100,000 miles, the battery pack of a Tesla Model Y has a higher-than-average degradation.Usually, Tesla EVs with the same age and mileage have 5-7% battery degradation, but this Model Y has an 11.5% degradation.The reason for the excessive degradation is unclear, as fast charging does not seem to be a major factor.The Model Y's battery pack struggles to accept a full 250 kilowatts when fast charging, leading to more frequent and time-consuming charging stops.