Analysis for Australian automotive retail · Editorial standards

The DriveAgent NewsroomTuesday, 22 September 2026
EVs & hybrids ↗

AVILOO’s used-EV battery study points to stronger-than-expected battery health

AVILOO’s 500,000-test study suggests used EV batteries are generally ageing better than expected, including in vehicles tested for Australian relevance.

DriveAgent NewsroomPublished

Automatically researched, written and checked using AI. Verify details against the sources.

Share
AI editorial illustration of a Hyundai IONIQ 5
AI-generated illustration of the Hyundai IONIQ 5, based on the manufacturer reference. It does not depict the reported incident. DriveAgent · AI illustration · AI-generated editorial illustrationHyundai IONIQ 5 — manufacturer reference

Verified event

AVILOO has released its Certified EV Battery Report, a study built from more than 500,000 used-EV battery tests collected between 2022 and 2026. The results have been summarised by The Driven and other outlets, with coverage noting that the dataset includes Australian vehicles and is therefore relevant to local used-EV shopping and fleet conversations. 1111215

The headline finding is that battery health is holding up better than many buyers assume. Across 20 popular models, median state of health after 150,000 km is typically reported in the high 80s to mid-90s, with several models such as the Hyundai Ioniq 5, Tesla Model Y and Mercedes-Benz EQA appearing near the top of the table. 13891115

What the data shows

The same study also shows that averages do not tell the full story. AVILOO says state of health can vary by as much as 13.5 percentage points between individual cars of the same model, which points to charging habits, usage patterns and other variables having a material effect on degradation. 671112

That matters for Australian readers because the study is not being presented as a niche overseas anomaly. The reporting explicitly connects the data to Australian testing and to models that are already familiar in the local market, although local price, availability and market impact have not been confirmed. 1111415

Our take

Our take: In our view, the significance of this report is less about a single best-performing model and more about what it does to the used-EV risk conversation. If batteries in common models are generally retaining around 90% of usable capacity at 150,000 km, then the old assumption that used EVs are automatically compromised looks harder to defend. 161115

One possible implication is that battery health testing may become more important than odometer reading alone when comparing used EVs. In our view, the 13.5-point spread within the same model suggests buyers and sellers cannot rely on model averages to describe a specific car, which makes measured state of health a more useful reference point than broad generalisations. 6711

Share

Sources

How we research and correct our articles

  1. New study of more than 500,000 used EVs shows battery health is much better than most people thinkthedriven.io · 11 Sept 2026 · accessed 21 Sept 2026
  2. Batteries Archivesthedriven.io · 21 Sept 2026 · accessed 21 Sept 2026
  3. EV batteries age better than feared, 500,000 tests shownewmobility.news · 3 Sept 2026 · accessed 21 Sept 2026
  4. Riz Akhtar, Author at The Driven IOthedriven.io · 20 Sept 2026 · accessed 21 Sept 2026
  5. Real-World Data Shows Used EV Batteries Are Holding Upgreencars.com · 11 Aug 2026 · accessed 21 Sept 2026
  6. Your Used EV Battery May Be Healthier Than You Think, but One Big Factor Changes the Storyibtimes.sg · 4 Sept 2026 · accessed 21 Sept 2026
  7. Battery health differs by 13.5% in same EV models ...evinfrastructurenews.com · 14 Sept 2026 · accessed 21 Sept 2026
  8. This Study Covered 500,000 EV Batteries. Some Models Aged Much Better Than Othersinsideevs.com · 2 Sept 2026 · accessed 21 Sept 2026
  9. These EVs retain their battery best, largest-ever study finds | Electrekelectrek.co · 3 Sept 2026 · accessed 21 Sept 2026
  10. New Aviloo Study of 500,000 EV Battery Tests Shows ... - EVinfo.netevinfo.net · 7 Sept 2026 · accessed 21 Sept 2026
  11. Battery health of used EVs varies significantly - electrive.comelectrive.com · 2 Sept 2026 · accessed 21 Sept 2026
  12. Aviloo launches independent study into used EV battery ...automotivetestingtechnologyinternational.com · 14 Sept 2026 · accessed 21 Sept 2026
  13. EV Battery Life: What You Need to Know - TraderInsighttraderinsight.com · 3 Sept 2026 · accessed 21 Sept 2026
  14. Aviloo Study: Over 500,000 Used EVs Show Strong Battery Health After High Mileage - The Electric Vikingtheelectricviking.com · 11 Sept 2026 · accessed 21 Sept 2026
  15. Electric car battery life longer and better than expected with the 2026 Hyundai Ioniq 5, Tesla Model Y and Mercedes-Benz EQA winnerscarsguide.com.au · 10 Sept 2026 · accessed 21 Sept 2026
Continue exploring
More EVs & hybrids ↗

Related subjects and more from this section.