Automotive
Independent study of 500,000 battery tests finds high retention across major EV models
Testing firm AVILOO found the Mercedes-Benz EQA and Hyundai IONIQ 5 led in battery health at 150,000 kilometers, while smaller-pack vehicles and Tesla models trailed.
The short version
- Austrian diagnostic firm AVILOO analyzed over 500,000 physical battery tests across 20 electric vehicle models up to 150,000 kilometers of driving.
- The Mercedes-Benz EQA, Hyundai IONIQ 5, and BMW i4 retained the highest median state of health, remaining above 93% capacity at 150,000 kilometers.
- Vehicles with smaller battery packs, such as the Nissan Leaf and MINI Cooper SE, alongside Tesla's Model 3 and Model Y, ranked toward the bottom of the evaluation.
- AVILOO emphasized that median figures mask significant variance, with individual vehicles of the same model showing health gaps of up to 13.5%.
Key facts
- AVILOO analyzed more than 500,000 physical tests evaluating the battery state of health across 20 popular EV models at distances up to 150,000 kilometers.[Electrek]
- At 150,000 kilometers, the Mercedes-Benz EQA posted the highest median state of health at 94%, followed by the Hyundai IONIQ 5 at 93.8% and the BMW i4 at 93.6%.[Electrek]
- The lowest median battery health at 150,000 kilometers was recorded by the Nissan Leaf at 86.7%, the MINI Cooper SE at 87.1%, and the Renault Zoe at 87.3%.[Electrek]
- Tesla's Model Y and Model 3 placed in the bottom third of tested models at 150,000 kilometers, recording median health scores of 90.3% and 88.9%, respectively.[Electrek]
- AVILOO gathered data using an on-board diagnostic port tool that calculates battery capacity independently from the vehicle's internal management system.[Electrek]
What remains uncertain
- Individual vehicle condition varies substantially from published medians, with health disparities between identical models reaching up to 13.5% due to varying usage and charging habits.[Electrek]