How long will electric car batteries REALLY last?

Study claims Teslas lose just 1% performance every year caused by repeat charges

It says Tesla batteries show slow levels of deterioration for first 150,000 miles. Read full article here.

After 7 years, the average Tesla car battery loses 7% capacity, researcher found

With average UK annual mileage being 7,600 miles, drivers shouldn't experience a significant drop-off in performance for almost 20 years.