Electrek iconElectrekSep 3, 2026

These EVs retain their battery best, largest-ever study finds

The Mercedes EQA, Hyundai IONIQ 5, and BMW i4 hold onto their battery health better than any other electric car, according to the largest independent study of used-EV batteries ever run. That's the ranking that falls out of 500,000-plus battery tests published by Austrian diagnostics firm AVILOO, which measured 20 popular EVs at up to 150,000 km (93,000 miles) of use.

These EVs retain their battery best, largest-ever study finds

Share this story

Send the public story page.

Useful takeaways from this story.

The Mercedes EQA, Hyundai IONIQ 5, and BMW i4 hold onto their battery health better than any other electric car, according to the largest independent study of used-EV batteries ever run.

That's the ranking that falls out of 500,000-plus battery tests published by Austrian diagnostics firm AVILOO, which measured 20 popular EVs at up to 150,000 km (93,000 miles) of use.

Building the complete brief

The page is ready to read now. The fuller skim-friendly version will appear here automatically.

The useful part

The Mercedes EQA, Hyundai IONIQ 5, and BMW i4 hold onto their battery health better than any other electric car, according to the largest independent study of used-EV batteries ever run. That's the ranking that falls out of 500,000-plus battery tests published by Austrian diagnostics firm AVILOO, which measured 20 popular EVs at up to 150,000 km (93,000 miles) of use.

Keep reading in the app

Open the app view to save this story, compare related coverage, and continue from the same source.

Open in app