{"id":193115,"date":"2026-09-03T12:10:11","date_gmt":"2026-09-03T10:10:11","guid":{"rendered":"https:\/\/newmobility.news\/?p=193115"},"modified":"2026-09-03T11:27:27","modified_gmt":"2026-09-03T09:27:27","slug":"ev-batteries-age-better-than-feared-500000-tests-show","status":"publish","type":"post","link":"https:\/\/newmobility.news\/fr\/2026\/09\/03\/ev-batteries-age-better-than-feared-500000-tests-show\/","title":{"rendered":"Les batteries des v\u00e9hicules \u00e9lectriques vieillissent mieux que pr\u00e9vu, comme le montrent 500 000 tests"},"content":{"rendered":"

Une analyse \u00e0 grande \u00e9chelle portant sur plus de 500 000 tests de batteries de v\u00e9hicules \u00e9lectriques sugg\u00e8re que la plupart des voitures \u00e9lectriques conservent au moins 90% de leur capacit\u00e9 d'origine apr\u00e8s 150 000 kilom\u00e8tres.<\/p>\n

Mais ces moyennes masquent d'importantes diff\u00e9rences d'un v\u00e9hicule \u00e0 l'autre \u2013 c'est pr\u00e9cis\u00e9ment la raison pour laquelle la Belgique int\u00e8gre d\u00e9j\u00e0 des donn\u00e9es sur l'\u00e9tat des batteries dans le Car-Pass et pourquoi les appels en faveur d'un certificat ind\u00e9pendant attestant de l'\u00e9tat des batteries des v\u00e9hicules \u00e9lectriques d'occasion se multiplient en Belgique et aux Pays-Bas.<\/p>\n

Aviloo, sp\u00e9cialiste autrichien du diagnostic des batteries, a analys\u00e9 plus de 500 000 de ses tests FLASH r\u00e9alis\u00e9s entre 2022 et 2026 sur 20 mod\u00e8les populaires de v\u00e9hicules \u00e9lectriques. Ces donn\u00e9es font partie d'une base de donn\u00e9es mondiale comptant plus d'un million de tests.<\/p>\n

Pour chaque mod\u00e8le, Aviloo a calcul\u00e9 la m\u00e9diane de l'\u00e9tat de sant\u00e9 (SoH) \u00e0 50 000, 100 000 et 150 000 kilom\u00e8tres. Les r\u00e9sultats sugg\u00e8rent que les craintes concernant l'\u00e9puisement des batteries des v\u00e9hicules \u00e9lectriques apr\u00e8s seulement quelques ann\u00e9es sont largement infond\u00e9es.<\/p>\n

\"\"
La plupart des batteries de v\u00e9hicules \u00e9lectriques conservent encore environ 90%, voire plus, de leur capacit\u00e9 apr\u00e8s 150 000 km, mais les donn\u00e9es d'Aviloo montrent \u00e9galement d'importantes diff\u00e9rences entre les diff\u00e9rents v\u00e9hicules d'un m\u00eame mod\u00e8le \/Aviloo<\/figcaption><\/figure>\n

\u00c0 150 000 km, une Mercedes EQA conserve encore en moyenne pr\u00e8s de 94% de sa capacit\u00e9 d'origine. La Ioniq 5 de Hyundai, la BMW i4, la Volvo XC40 Recharge et plusieurs autres mod\u00e8les restent \u00e9galement au-dessus de 90%.<\/p>\n

Les chiffres de Tesla restent eux aussi honorables. Selon Aviloo, le Model Y affiche environ 90% apr\u00e8s 150 000 km, tandis que la Volkswagen ID.4, \u00e9quip\u00e9e d\u2019une batterie de 77 kWh, atteint \u00e0 peu pr\u00e8s le m\u00eame niveau. Les mod\u00e8les plus anciens, \u00e9quip\u00e9s de batteries plus petites, affichent des performances l\u00e9g\u00e8rement inf\u00e9rieures : la Nissan Leaf ZE1, avec son pack de 40 kWh, chute \u00e0 environ 86%.<\/p>\n

M\u00eame kilom\u00e9trage, une batterie tr\u00e8s diff\u00e9rente<\/strong><\/h4>\n

Cependant, se contenter de transformer ces chiffres en un simple classement des \u2018 meilleures \u2019 batteries pour v\u00e9hicules \u00e9lectriques reviendrait \u00e0 passer \u00e0 c\u00f4t\u00e9 de la conclusion la plus importante de cette \u00e9tude. Les diff\u00e9rences entre les diff\u00e9rents exemplaires d\u2019un m\u00eame mod\u00e8le s\u2019accentuent consid\u00e9rablement \u00e0 mesure que le kilom\u00e9trage augmente.<\/p>\n

\"\"
Le kilom\u00e9trage ne refl\u00e8te qu'une partie de la r\u00e9alit\u00e9 : Aviloo a constat\u00e9 que les \u00e9carts de sant\u00e9 des batteries entre les diff\u00e9rents v\u00e9hicules s'accentuent consid\u00e9rablement \u00e0 mesure que le nombre de kilom\u00e8tres parcourus augmente \/Aviloo<\/figcaption><\/figure>\n

Parmi les voitures ayant parcouru environ 150 000 km, l'\u00e9tat de la batterie peut varier de plus de dix points de pourcentage, m\u00eame entre des v\u00e9hicules par ailleurs similaires. Aviloo a constat\u00e9 un \u00e9cart de plus de 12 points pour l'Ioniq 5 et d'environ 13,5 points pour la Nissan Leaf, comme le souligne son rapport. Les \u00e9carts entre les diff\u00e9rents mod\u00e8les sont encore plus importants sur l'ensemble des donn\u00e9es.<\/p>\n

Cela signifie que deux v\u00e9hicules \u00e9lectriques de cinq ans, du m\u00eame mod\u00e8le et pr\u00e9sentant le m\u00eame kilom\u00e9trage, pourraient avoir des autonomies r\u00e9elles tr\u00e8s diff\u00e9rentes \u2013 et m\u00e9riteraient sans doute des prix d'occasion diff\u00e9rents.<\/p>\n

Le kilom\u00e9trage, l'\u00e2ge et l'historique d'entretien comptent depuis toujours parmi les principaux indicateurs de l'\u00e9tat d'une voiture d'occasion. Dans le cas d'un v\u00e9hicule \u00e9lectrique, l'\u00e9tat de la batterie s'impose de plus en plus comme un autre param\u00e8tre essentiel.<\/p>\n

La Belgique int\u00e8gre le SoH dans le Car-Pass<\/strong><\/h4>\n

Cette question est particuli\u00e8rement d'actualit\u00e9 en Belgique. Depuis le 1er janvier 2026, les vendeurs de v\u00e9hicules \u00e9lectriques \u00e0 batterie (BEV) et d\u2019hybrides rechargeables d\u2019occasion peuvent, \u00e0 titre volontaire, faire ajouter au Car-Pass un test ind\u00e9pendant d\u2019\u00e9valuation de l\u2019\u00e9tat de sant\u00e9 (SoH). Le pourcentage SoH et les informations relatives au test peuvent ainsi accompagner l\u2019historique obligatoire du kilom\u00e9trage lors de la vente du v\u00e9hicule.<\/p>\n

Car-Pass souhaite aller plus loin et a plaid\u00e9 en faveur de l'obligation de fournir des informations sur l'\u00e9tat de sant\u00e9 de la batterie pour les voitures \u00e9lectriques et hybrides rechargeables \u00e9quip\u00e9es de batteries d'une capacit\u00e9 suffisante. \u00c0 terme, l'association souhaite \u00e9galement que les constructeurs et les importateurs automobiles fournissent automatiquement les donn\u00e9es SoH issues des v\u00e9hicules connect\u00e9s.<\/p>\n

La Flandre \u00e9tudie quant \u00e0 elle la mise en place d'un test SoH ind\u00e9pendant de toute marque, qui pourrait \u00eatre propos\u00e9 en compl\u00e9ment du futur contr\u00f4le volontaire des voitures d'occasion et, \u00e9ventuellement, lors des contr\u00f4les techniques p\u00e9riodiques. Un cadre juridique doit encore \u00eatre mis en place.<\/p>\n

Les Pays-Bas ne disposent pas encore d'un certificat obligatoire \u00e9quivalent pour les batteries. Toutefois, tant la BOVAG que l'association Vereniging Elektrische Rijders militent en faveur de la mise \u00e0 disposition d'informations fiables et harmonis\u00e9es sur l'\u00e9tat des batteries \u00e0 l'intention des acheteurs de v\u00e9hicules \u00e9lectriques d'occasion.<\/p>\n

Il est int\u00e9ressant de noter qu\u2019une \u00e9tude comparative n\u00e9erlandaise ant\u00e9rieure, portant sur 185 s\u00e9ries de tests r\u00e9alis\u00e9s sur 24 marques et mod\u00e8les, avait class\u00e9 le test FLASH d\u2019Aviloo et celui de son concurrent Moba parmi les plus fiables des cinq syst\u00e8mes de test ind\u00e9pendants examin\u00e9s. Cela constitue un soutien externe utile pour Aviloo, m\u00eame si sa nouvelle analyse portant sur un demi-million de tests n\u00e9cessite une r\u00e9serve importante.<\/p>\n

Ind\u00e9pendant, mais pas universitaire<\/strong><\/h4>\n

Aviloo est un sp\u00e9cialiste autrichien reconnu dans le domaine du diagnostic des batteries, dont la technologie est \u00e9galement utilis\u00e9e ou reconnue par des organismes tels que l'ADAC en Allemagne et l'\u00d6AMTC en Autriche.\u00a0Son test FLASH se connecte via le port de diagnostic du v\u00e9hicule et analyse des param\u00e8tres tels que l\u2019\u00e2ge, le kilom\u00e9trage, l\u2019historique de charge, les diff\u00e9rences de tension entre les cellules et les compteurs d\u2019\u00e9nergie, en les comparant \u00e0 la vaste base de donn\u00e9es d\u2019Aviloo. Il va donc au-del\u00e0 de la simple lecture de l\u2019indice d\u2019\u00e9tat de sant\u00e9 fourni par le syst\u00e8me de gestion de batterie du constructeur.<\/p>\n

Il ne s'agit toutefois pas d'une \u00e9tude universitaire soumise \u00e0 un comit\u00e9 de lecture. Aviloo a collect\u00e9 les donn\u00e9es des tests, d\u00e9velopp\u00e9 les algorithmes, analys\u00e9 les r\u00e9sultats et publi\u00e9 le rapport. L'entreprise tire \u00e9galement des revenus des tests de batteries et des certificats, dont l'utilit\u00e9 est soulign\u00e9e par ces conclusions.<\/p>\n

Le fait qu'Aviloo qualifie son rapport de \u201c plus grande \u00e9tude ind\u00e9pendante au monde sur les batteries de v\u00e9hicules \u00e9lectriques \u201d doit donc \u00eatre interpr\u00e9t\u00e9 comme signifiant que cette \u00e9tude est ind\u00e9pendante des constructeurs automobiles, et non comme une recherche scientifique ind\u00e9pendante portant sur la technologie d'Aviloo.<\/p>\n

Le certificat de batterie pourrait bien devenir le nouveau compteur kilom\u00e9trique<\/strong><\/h4>\n

N\u00e9anmoins, l'ampleur de l'ensemble de donn\u00e9es rend son message central difficile \u00e0 ignorer. Les batteries des v\u00e9hicules \u00e9lectriques semblent se d\u00e9grader bien plus lentement que ne le craignent encore de nombreux consommateurs, les voitures ayant m\u00eame un kilom\u00e9trage \u00e9lev\u00e9 conservant g\u00e9n\u00e9ralement une grande partie de leur capacit\u00e9 d'origine. Parall\u00e8lement, les moyennes perdent de leur pertinence lorsqu'il s'agit d'\u00e9valuer un v\u00e9hicule \u00e9lectrique d'occasion en particulier.<\/p>\n

Cela rev\u00eat une importance particuli\u00e8re en Belgique et aux Pays-Bas, o\u00f9 la vague importante de v\u00e9hicules \u00e9lectriques d\u2019entreprise et de leasing vendus ces derni\u00e8res ann\u00e9es arrive de plus en plus sur le march\u00e9 de l\u2019occasion. Pour ces v\u00e9hicules, savoir qu\u2019un v\u00e9hicule \u00e9lectrique a parcouru 120 000 ou 150 000 kilom\u00e8tres pourrait ne plus suffire. Un certificat attestant de l\u2019\u00e9tat de la batterie pourrait devenir presque aussi d\u00e9terminant pour sa valeur que le kilom\u00e9trage affich\u00e9 au compteur.<\/p>","protected":false},"excerpt":{"rendered":"

A massive analysis of more than 500,000 EV battery tests suggests that most electric cars retain at least 90% of their original battery capacity after 150,000 kilometers. But the averages hide large differences between individual cars \u2013 precisely why Belgium is already adding battery-health data to the Car-Pass and why calls for an independent battery […]<\/p>\n","protected":false},"author":21,"featured_media":193121,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"{title}\r\n\r\n{excerpt}\r\n\r\n{url}","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"_wpas_customize_per_network":false,"jetpack_post_was_ever_published":false},"categories":[77162,2043,77201,6,4],"tags":[],"class_list":["post-193115","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-batteries","category-energy","category-study","category-technology","category-top-stories-today"],"acf":[],"featured_image_urls_v2":{"full":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/09\/Avilo.png?fit=725%2C548&ssl=1",725,548,false],"thumbnail":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/09\/Avilo.png?resize=150%2C150&ssl=1",150,150,true],"medium":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/09\/Avilo.png?fit=300%2C227&ssl=1",300,227,true],"medium_large":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/09\/Avilo.png?fit=640%2C484&ssl=1",640,484,true],"large":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/09\/Avilo.png?fit=640%2C484&ssl=1",640,484,true],"1536x1536":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/09\/Avilo.png?fit=725%2C548&ssl=1",725,548,true],"2048x2048":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/09\/Avilo.png?fit=725%2C548&ssl=1",725,548,true],"trp-custom-language-flag":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/09\/Avilo.png?fit=16%2C12&ssl=1",16,12,true],"related-thumb":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/09\/Avilo.png?resize=640%2C480&ssl=1",640,480,true],"gform-image-choice-sm":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/09\/Avilo.png?resize=300%2C300&ssl=1",300,300,true],"gform-image-choice-md":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/09\/Avilo.png?resize=400%2C400&ssl=1",400,400,true],"gform-image-choice-lg":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/09\/Avilo.png?resize=600%2C548&ssl=1",600,548,true],"mailchimp":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/09\/Avilo.png?fit=560%2C423&ssl=1",560,423,true],"unipress-phone":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/09\/Avilo.png?resize=640%2C100&ssl=1",640,100,true],"unipress-tablet":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/09\/Avilo.png?resize=725%2C240&ssl=1",725,240,true],"unipress-tablet-portrait":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/09\/Avilo.png?resize=725%2C180&ssl=1",725,180,true],"unipress-tablet-landscape":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/09\/Avilo.png?resize=725%2C180&ssl=1",725,180,true],"unipress-smartphone":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/09\/Avilo.png?resize=725%2C168&ssl=1",725,168,true],"unipress-wide-screen":["https:\/\/i0.wp.com\/newmobility.news\/wp-content\/uploads\/2026\/09\/Avilo.png?resize=725%2C180&ssl=1",725,180,true]},"post_excerpt_stackable_v2":"

A massive analysis of more than 500,000 EV battery tests suggests that most electric cars retain at least 90% of their original battery capacity after 150,000 kilometers. But the averages hide large differences between individual cars \u2013 precisely why Belgium is already adding battery-health data to the Car-Pass and why calls for an independent battery certificate for used EVs are growing in Belgium and the Netherlands. Austrian battery-diagnostics specialist Aviloo analyzed more than 500,000 of its FLASH tests conducted between 2022 and 2026 across 20 popular EV models. They form part of a worldwide database exceeding one million tests. For…<\/p>\n","category_list_v2":"Batteries<\/a>, Energy<\/a>, Study<\/a>, Technology<\/a>, Top Stories Today<\/a>","author_info_v2":{"name":"Joris Van Roy","url":"https:\/\/newmobility.news\/fr\/author\/jorisximcom-be\/"},"comments_num_v2":"0 comments","yoast_head":"\nEV batteries age better than feared, 500,000 tests show - newmobility.news<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/newmobility.news\/fr\/2026\/09\/03\/ev-batteries-age-better-than-feared-500000-tests-show\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"EV batteries age better than feared, 500,000 tests show - newmobility.news\" \/>\n<meta property=\"og:description\" content=\"A massive analysis of more than 500,000 EV battery tests suggests that most electric cars retain at least 90% of their original battery capacity after 150,000 kilometers. 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