{"id":147237,"date":"2025-12-11T09:15:26","date_gmt":"2025-12-11T08:15:26","guid":{"rendered":"https:\/\/venstar.eu\/indications-de-batterie-pourcentage-et-tension\/"},"modified":"2026-06-09T11:08:33","modified_gmt":"2026-06-09T10:08:33","slug":"indications-de-batterie-pourcentage-et-tension","status":"publish","type":"post","link":"https:\/\/venstar.eu\/fr\/indications-de-batterie-pourcentage-et-tension\/","title":{"rendered":"Indications de batterie : pourcentage et tension"},"content":{"rendered":"\n<p>Une bonne gestion de la batterie est essentielle pour la long\u00e9vit\u00e9 de votre batterie au plomb ou au lithium. Pour une batterie au plomb, la tension est plus ou moins li\u00e9e au pourcentage : prenons une batterie en bon \u00e9tat sur laquelle vous lisez 12 V. Vous pouvez alors consid\u00e9rer qu\u2019elle est d\u00e9charg\u00e9e \u00e0 environ 50 %.<\/p>\n\n<p>Aujourd\u2019hui, nous souhaitons conna\u00eetre plus pr\u00e9cis\u00e9ment l\u2019\u00e9tat de la gestion de l\u2019\u00e9nergie : cela est possible gr\u00e2ce \u00e0 un contr\u00f4leur de batterie ou \u00e9ventuellement via une application (int\u00e9gr\u00e9e \u00e0 la batterie au lithium). Toute mesure de qualit\u00e9 s\u2019effectue via ce que l\u2019on appelle un \u00ab shunt \u00bb.<\/p>\n\n<p>Le shunt enregistre le courant entrant et sortant et le calcule par rapport \u00e0 la capacit\u00e9 de la batterie pour obtenir un pourcentage. Il y aura toujours un l\u00e9ger \u00e9cart : une diff\u00e9rence appara\u00eetra \u00e0 chaque charge ou d\u00e9charge partielle. \u00c0 terme, les diff\u00e9rences se cumulent. L\u2019\u00e9cart s\u2019accentue ! Le pourcentage, \u00e9galement appel\u00e9 SOC (state of charge), ne correspond alors plus \u00e0 la r\u00e9alit\u00e9. <\/p>\n\n<p>Solution : en chargeant compl\u00e8tement la batterie, le contr\u00f4leur de batterie se r\u00e9initialisera et fournira \u00e0 nouveau une indication correcte. Si, par exemple, la charge s\u2019effectue uniquement via des panneaux solaires et que les batteries n\u2019atteignent jamais 100 % de leur capacit\u00e9 de charge (en hiver), une marge d\u2019erreur importante peut appara\u00eetre sur le SOC affich\u00e9 par le contr\u00f4leur de batterie.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Une bonne gestion de la batterie est essentielle pour la long\u00e9vit\u00e9 de votre batterie au plomb ou au lithium. Pour une batterie au plomb, la tension est plus ou moins li\u00e9e au pourcentage : prenons une batterie en bon \u00e9tat sur laquelle vous lisez 12 V. Vous pouvez alors consid\u00e9rer qu\u2019elle est d\u00e9charg\u00e9e \u00e0 environ [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4123],"tags":[],"class_list":["post-147237","post","type-post","status-publish","format-standard","hentry","category-non-classe"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Indications de batterie : pourcentage et tension - Venstar<\/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:\/\/venstar.eu\/fr\/indications-de-batterie-pourcentage-et-tension\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Indications de batterie : pourcentage et tension - Venstar\" \/>\n<meta property=\"og:description\" content=\"Une bonne gestion de la batterie est essentielle pour la long\u00e9vit\u00e9 de votre batterie au plomb ou au lithium. Pour une batterie au plomb, la tension est plus ou moins li\u00e9e au pourcentage : prenons une batterie en bon \u00e9tat sur laquelle vous lisez 12 V. Vous pouvez alors consid\u00e9rer qu\u2019elle est d\u00e9charg\u00e9e \u00e0 environ [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/venstar.eu\/fr\/indications-de-batterie-pourcentage-et-tension\/\" \/>\n<meta property=\"og:site_name\" content=\"Venstar\" \/>\n<meta property=\"article:published_time\" content=\"2025-12-11T08:15:26+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-09T10:08:33+00:00\" \/>\n<meta name=\"author\" content=\"Robin Van Buggenhout\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Robin Van Buggenhout\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/venstar.eu\/fr\/indications-de-batterie-pourcentage-et-tension\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/venstar.eu\/fr\/indications-de-batterie-pourcentage-et-tension\/\"},\"author\":{\"name\":\"Robin Van Buggenhout\",\"@id\":\"https:\/\/venstar.eu\/fr\/#\/schema\/person\/f095d09a2d2a7411222f79b402ba5090\"},\"headline\":\"Indications de batterie : pourcentage et tension\",\"datePublished\":\"2025-12-11T08:15:26+00:00\",\"dateModified\":\"2026-06-09T10:08:33+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/venstar.eu\/fr\/indications-de-batterie-pourcentage-et-tension\/\"},\"wordCount\":249,\"publisher\":{\"@id\":\"https:\/\/venstar.eu\/fr\/#organization\"},\"inLanguage\":\"fr-FR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/venstar.eu\/fr\/indications-de-batterie-pourcentage-et-tension\/\",\"url\":\"https:\/\/venstar.eu\/fr\/indications-de-batterie-pourcentage-et-tension\/\",\"name\":\"Indications de batterie : pourcentage et tension - 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