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Tesla Owners Get Only 64% of EPA Range After Just Three Years: Study

A new study shows that, on average, Tesla vehicles hit just 64% of their advertised EPA-rated range after just three years.

However, some battery chemistries—like lithium iron phosphate (LFP) packs found in some Tesla models—are more susceptible to calendar aging than others. It specifically compares the range of the fleet data against the EPA rating, not the battery capacity retention over time or vehicle mileage. The study posted by Viecha, while not an apples-to-apple comparison, does bring to light that Tesla shows an average retention of greater than 80% over 150,000 miles.

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