Ford says battery data from more than 36,000 model year 2021 Mustang Mach-E vehicles shows an average of 92 percent battery health retained at the five-year mark, based on an analysis of the full fleet’s battery state-of-health data.
According to Ford, 95 percent of those vehicles fall between 87 percent and 97 percent health. The company says the vehicles have covered two billion all-electric miles across all 50 states and Canada. More than 2,000 owners have passed 100,000 miles on their original battery and average better than 91 percent health, while more than 30 drivers past 200,000 miles average 88 percent.
The analysis followed the case of Mach-E owner David Blenkle, who Ford says drove past 400,000 miles on the original battery in his 2022 Mustang Mach-E. Ford says the broader data shows his experience is part of a larger pattern of strong battery health. Across the battery-electric lineup the company has released over the last five years in the U.S. and Canada, Ford says its packs are designed to last at least 10 years and are maintaining, on average, greater than 90 percent health at 100,000 miles.
Ford says it uses field data from vehicles on the road to inform current and future programs, including the Universal Electric Vehicle platform and the Ford Fathom electric truck. Kevin Vander Laan, technical leader of high-voltage battery cells and systems at Ford, wrote the post and listed three habits for long-term battery health: charging on Level 2 at home for daily driving, preconditioning while plugged in, and following the charge-level recommendations in the Ford App. Ford notes that the 2021 Mach-E uses NCM battery chemistry, for which frequent full charges are generally not needed for daily use.