Ford Reports 92% Battery Health for Mustang Mach-E 'Class of 2021' After 5 Years

Ford has released compelling real-world data on its first mass-market electric vehicle, the Mustang Mach-E, revealing that the "Class of 2021" models retain an average of 92 percent battery health after five years of ownership. This announcement, made by Ford's "From the Road" engineering team, provides concrete evidence against common concerns regarding long-term EV battery degradation.

The Data Behind the Claim

The study analyzed battery state-of-health data from more than 36,000 Mustang Mach-E vehicles sold in the U.S. and Canada. These vehicles have collectively logged approximately 2 billion all-electric miles across all 50 states and Canada. The data indicates that 95 percent of the vehicles fall within a healthy range of 87 to 97 percent battery health, suggesting consistent performance across the fleet rather than isolated outliers.

• Average Health: 92% retention after 5 years
• High-Mileage Group: 2,000+ owners past 100,000 miles average >91% health
• Extreme Use Case: 30+ drivers past 200,000 miles average 88% health
• Total Distance: 2 billion miles driven by the 2021 cohort

Implications for Canadian Buyers

For Canadian buyers considering used or certified pre-owned Mach-Es, this data offers reassurance regarding residual value and reliability. Ford notes that these vehicles use NCM (Nickel Cobalt Manganese) battery chemistry, which is designed to handle moderate charging levels for daily use. The company emphasizes that following specific charge-level recommendations in the Ford App is key to maintaining these health metrics.

As the EV market matures, OEMs like Ford are increasingly using fleet data to validate durability claims. This transparency helps differentiate established EV models from newer entrants with less historical data available.

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