Ford data shows electric vehicle batteries retain over 90 percent capacity after five years

Ford announced that its 2021 Mustang Mach-E electric vehicles averaged 92% battery health after more than five years and an estimated 2 billion cumulative miles on the road. The automaker reached these findings by examining real-world data from over 36,000 vehicles sold across the United States and Canada. Across its broader electric lineup, which includes the F-150 Lightning and E-Transit, Ford claims battery packs maintain greater than 90% health on average after 100,000 miles. [1][2]

According to the company, roughly 95% of the surveyed Mach-E models held between 87% and 97% of their original capacity. Wear gradually increased as mileage accumulated: about 2,000 vehicles passed the 100,000-mile mark with an average of 91% health, while roughly 30 drivers who logged over 200,000 miles averaged 88% health. Ford engineers noted the 2021 Mach-E's nickel-cobalt-manganese battery was originally engineered to last at least 10 years. [1][2]

The findings echo wider industry data, including an independent analysis from Austrian diagnostics firm Aviloo that recorded roughly 90% retention at similar distances for competitors such as the Tesla Model Y and Hyundai Ioniq 5. Ford is applying this operational data to its Universal Electric Vehicle platform, which will use lithium iron phosphate chemistry for upcoming models like the Fathom pickup. [1][2]