The data comes from Austrian battery diagnostics company Aviloo (via InsideEVs<\/a>), which has analyzed used EVs across 20 popular models between 2022 and 2026.<\/p>\n <\/p>\n The company says the new Aviloo Certified EV Battery Report is the world’s largest independent study of used EV battery health, drawing on a wider database of more than one million tests from across the globe.<\/p>\n And while the results are broadly good news for EV owners, there are some surprisingly big differences between models.<\/p>\n Cutting to the chase for a second, the standout performer is the Hyundai Ioniq 5<\/a>, which recorded a median State of Health (SoH) of 97.2% at 50,000 m (31,000 miles) and 95% at 100,000km \u2014 or around 62,000 miles. Even at at 150,000km (93,000 miles), it still retained 92.8% of its original Sate of Health.<\/p>\n You may like<\/p>\n That puts it comfortably ahead of the Tesla Model Y, which recorded a median SoH of 90.3% at 150,000 km. The Tesla Model 3 <\/a>was lower still, at 88.94%.<\/p>\n At the other end of the table, smaller EVs with relatively small batteries performed less well.<\/p>\n The Nissan Leaf<\/a> ZE1 generation with its smaller 40kWh battery, for example, recorded 86.67% at 150,000 km, while the Renault Zoe of the same era managed 87.33% and the first generation Mini Cooper SE 87.11%.<\/p>\n Analysis: Battery health is more complicated than mileage<\/p>\n \n (Image credit: Nissan)<\/p>\n The really interesting part of Aviloo\u2019s data isn’t simply which model wins. It’s how much individual cars can vary<\/a> from the median.<\/p>\n For example, at 150,000km, 99% of Tesla Model Ys<\/a> in the dataset fell between 82.9% and 94.9% battery SoH. For the BMW i4, the range was 87.5% to 96.9%.<\/p>\n What to read next<\/p>\n That means two seemingly identical used EVs with the same mileage can have “dramatically different” battery health \u2014 and therefore potentially very different real-world ranges and performance.<\/p>\n Marcus Berger, CEO of Aviloo said: “The truth in this data is that averages hide a lot. Yes, EV batteries are aging better than the \u2018they wear out fast\u2019 myth suggests \u2014 but that’s not the most useful thing this report tells you.<\/p>\n “What matters is that battery health varies significantly between models, and even more between individual cars of the same model”.<\/p>\n This is where Aviloo says its independent Flash tests are important, rather than used car buyers relying on the State of Health figure displayed by the vehicle\u2019s computer systems.<\/p>\n The company says that climate, charging behavior, battery chemistry and keeping a vehicle at high charge for extended periods are all factors that can easily influence degradation.<\/p>\n But as we have seen with plenty of other EV battery reports like this<\/a>, the overall message is reassuring.<\/p>\n Most of the EVs in the study retained around 90% or more of their original battery capacity after 150,000km (around 93,000 miles), suggesting that fears of EV batteries clogging up landfill sites are increasingly difficult to square with the real-world data.<\/p>\n <\/p>\n \n <\/a><\/p>\n Follow TechRadar on Google News<\/a> and add us as a preferred source<\/a> to get our expert news, reviews, and opinion in your feeds.<\/p>\n","protected":false},"excerpt":{"rendered":"Analysis of more than 500,000 used EV battery tests reveals long-term healthThe Hyundai Ioniq 5 emerges as one…\n","protected":false},"author":2,"featured_media":140952,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[24],"tags":[295,294,293],"class_list":["post-140951","post","type-post","status-publish","format-standard","has-post-thumbnail","category-hyundai","tag-hyundai","tag-hyundai-group","tag-hyundai-motor-group"],"_links":{"self":[{"href":"https:\/\/www.europesays.com\/korea\/wp-json\/wp\/v2\/posts\/140951","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/korea\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/korea\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/korea\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/korea\/wp-json\/wp\/v2\/comments?post=140951"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/korea\/wp-json\/wp\/v2\/posts\/140951\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/korea\/wp-json\/wp\/v2\/media\/140952"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/korea\/wp-json\/wp\/v2\/media?parent=140951"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/korea\/wp-json\/wp\/v2\/categories?post=140951"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/korea\/wp-json\/wp\/v2\/tags?post=140951"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}![\"Nissan](\"https:\/\/www.europesays.com\/korea\/wp-content\/uploads\/2026\/09\/e8uBo4FVf2imqUqtTw64hS.jpg\")
\n<\/p>\n![\"Google](\"https:\/\/www.europesays.com\/korea\/wp-content\/uploads\/2026\/09\/1788382872_596_diM9tpwF2Lz85R8q85CT78.jpg\")
\n<\/p>\n