Electric Car Batteries Keep 90%+ Capacity After 93K Miles

Electric car batteries are proving far more durable than many drivers feared, according to groundbreaking research that should put range anxiety to rest.

Aviloo, an EV diagnostics company, conducted over 500,000 battery health tests across five continents between 2022 and 2026. They examined 20 popular electric vehicle models to see how batteries held up at 31,000, 62,000, and 93,000 miles of real-world driving.

The results tell an encouraging story. Most electric vehicles retained about 95% of their original battery capacity after 31,000 miles. Even after 93,000 miles, the typical EV still had over 90% of its range remaining.

Some models barely broke a sweat. Certain vehicles lost only a few percentage points of capacity even at the highest mileage tested. The worst performers dropped about 20% capacity, but that still leaves plenty of range for daily driving.

Seven models emerged as battery champions. The Hyundai IONIQ 5, Hyundai Kona EV, Mercedes-Benz EQA, BMW i4, Volvo XC40 Recharge, Polestar 2, and Ford Mustang Mach-E all showed exceptional battery longevity across the testing period.

The Bright Side

Today's electric vehicles start with three to four times more range than models from a decade ago. That means even with normal battery degradation over time, a newer EV experiencing 10% capacity loss still outperforms older models that started with less range.

The practical impact on daily life is minimal. A few extra charging sessions per month adds only seconds of actual effort, typically just plugging in at home overnight. For most drivers, the difference between 300 miles and 270 miles of range rarely affects their routine.

The global scope of this research makes it especially reliable. Testing across North America, South America, Europe, Asia, and Australia captured how batteries perform in varied climates and driving conditions, not just ideal laboratory settings.

Battery technology continues improving with each model year. The vehicles tested represent technology from recent years, and manufacturers are already releasing next-generation batteries with even better chemistry and thermal management systems.

Today's EV buyers can drive confidently knowing their battery investment will serve them well for many years and many miles to come.