Science & Tech · Gadgets & EVs · 4 hrs ago
Ford Finds Mustang Mach-E Batteries Retain Most Capacity After Years of Use
Ford studied battery data from about 36,000 Mustang Mach-Es sold in the United States and Canada.
The vehicles were 2021 models, and on average they had travelled 55,000 miles over 5.2 years while retaining 92% of their usable battery capacity.
More than 2,000 vehicles with over 100,000 miles retained more than 91% capacity, while the 30-plus cars over 200,000 miles retained 88%.
Ford said 95% of the vehicles retained between 87% and 97% of their capacity.
Battery wear can vary, and the source says hot climates and frequent fast charging or charging to full may speed it up.
The findings matter to people concerned that electric-car batteries lose capacity quickly, and they are in line with other research on modern electric vehicles.
The study offers a five-year look at how these batteries have held up, but it does not say what Ford will do next.
Ford said its study of about 36,000 2021 Mustang Mach-E SUVs found they retained an average of 92% of usable battery capacity.
The vehicles had traveled an average of 55,000 miles over 5.2 years.
More than 2,000 vehicles with over 100,000 miles retained more than 91% of battery capacity.
The 30-plus vehicles with more than 200,000 miles showed 88% battery health.
Ford said 95% of the vehicles fell between 87% and 97% battery health.
- Who
- Ford collected and shared the battery-health data.
- What
- The study found that the vehicles retained most of their battery capacity after years of use.
- When
- The results were released Monday. The article was published on 2026-11-09.
- Where
- The vehicles were sold in the U.S. and Canada.
- Why
- The data may help address concerns about battery degradation in electric vehicles.
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- Vehicles studied
- Around 36,000 2021 Mustang Mach-E SUVs
- Average battery capacity retained
- 92%
- Average distance traveled
- 55,000 miles
- Average time on the road
- 5.2 years
- Vehicles with over 100,000 miles
- More than 2,000; retained more than 91% of battery capacity
- Battery-health range
- 95% of vehicles fell between 87% and 97%
What people are saying
Our report card slowly trickles in over time
So here we are with a five-year report card, and it looks great