What is the realistic battery lifespan of a 2021 Mach-E under Canadian conditions, and is degradation a purchase risk?
The lithium-ion battery in the 2021 Mach-E Extended Range (98.8 kWh gross) is covered by Ford's 8-year / 160,000 km warranty guaranteeing at least 70% of original capacity. After four years of Canadian use with normal charging cycles, well-maintained units show 6 to 12% degradation — leaving 88 to 94% residual capacity. This is a solid result for a first-generation Ford EV battery. The real risk emerges after warranty expiration: an out-of-warranty Mach-E 2021 battery replacement at a Ford Canada dealer is estimated at $15,000 to $22,000 depending on current parts market conditions. For used buyers planning to exceed 160,000 km, either securing a third-party battery warranty extension (where available) or planning to sell before warranty expiry are the most financially prudent strategies.