Report: Most EV Batteries Maintain 90% of Capacity After 93,000 Miles

Sep. 7, 2026 | |

AVILOO has released the results of its inaugural Certified EV Battery Report, a new dataset based on more than 500,000 global, independent, third-party tests of EV battery capacity after 150,000 kilometers (about 93,000 miles).

Sixteen out of 20 tested models earned a “State of Health” (SoH) score of at least 90%, indicating a loss of only 10% of their original capacity. Topping the leaderboard are the Mercedes-Benz EQA (94%), Hyundai Ioniq 5 (93.8%) and BMW i4 (93.5%). The Nissan Leaf ZE1 (86.7%) registered the lowest SoH score.

Analysts note the world’s best-selling vehicle, the Tesla Model Y, barely made it into the 90% club.

“Used Model Ys show a median State of Health of 94.5% at 50,000 km, falling to 90.3% at 150,000 km — equivalent to a real-world range per charge of around 379 km, dropping to roughly 362 km,” the report states. “That median is only the midpoint: Individual cars vary by up to 11% of state of health across that range, worth around 46 km of real-world range per charge — a reminder that the model average doesn’t tell you how any one car has actually aged.”

Read more at AVILOO