Overview
- AVILOO published a global analysis built from more than 500,000 OBD-based State of Health tests collected from 2022–2026 that ranks 20 popular EV models by remaining usable battery capacity.
- The study finds median battery degradation is modest with no model showing a median drop greater than about 10 percent in the first 50,000 km, countering widespread fears of rapid early decay.
- Model-level results show the Hyundai Ioniq 5 leading at roughly 97.1 percent SoH near 50,000 km and the Mercedes‑Benz CLA topping the ~150,000 km group at about 94 percent SoH.
- Certain high-mileage results put some Tesla models below several competitors, with the Model Y and Model 3 recording lower median usable capacity around the 150,000 km mark in this dataset.
- The dataset also shows large within-model spreads—up to about 13.5 percentage points—so AVILOO is promoting three-minute OBD tests, selling warranty products tied to results, and planning twice-yearly data updates to inform buyers, fleets and insurers.