{"id":180828,"date":"2025-08-19T20:55:52","date_gmt":"2025-08-20T03:55:52","guid":{"rendered":"https:\/\/www.carparts.com\/blog\/?p=180828"},"modified":"2026-04-21T18:53:12","modified_gmt":"2026-04-22T01:53:12","slug":"what-does-the-inside-of-a-car-battery-look-like","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/what-does-the-inside-of-a-car-battery-look-like\/","title":{"rendered":"What Does the Inside of a Car Battery Look Like?"},"content":{"rendered":"<!DOCTYPE html PUBLIC \"-\/\/W3C\/\/DTD HTML 4.0 Transitional\/\/EN\" \"http:\/\/www.w3.org\/TR\/REC-html40\/loose.dtd\">\n<html><body><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\"> &lt; 1<\/span> <span class=\"rt-label rt-postfix\">minute<\/span><\/span>\n<div class=\"summary-widget\">\n    <h3>Summary<\/h3>\n    <ul class=\"summary-grid\">\n            <li class=\"summary-grid-list\">\n            <div class=\"sm-item\">\n\n                                    <p class=\"sm-title\">\n                        Removing the battery lid exposes six cells that are separated by a plastic wall.                    <\/p>\n                \n            <\/div>\n        <\/li>\n            <li class=\"summary-grid-list\">\n            <div class=\"sm-item\">\n\n                                    <p class=\"sm-title\">\n                        Lead plate straps are welded together to connect each cell, slightly towering over each plastic wall.                    <\/p>\n                \n            <\/div>\n        <\/li>\n            <li class=\"summary-grid-list\">\n            <div class=\"sm-item\">\n\n                                    <p class=\"sm-title\">\n                        Each plate strap is connected to several lead plates, which are formed into grid-type structures to maximize the surface area.                    <\/p>\n                \n            <\/div>\n        <\/li>\n        <\/ul>\n<\/div>\n\n\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"775\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2025\/08\/car-battery-diagram-showing-inside-1024x775.jpg\" alt=\"car battery diagram showing inside\" class=\"wp-image-180829\"><figcaption class=\"wp-element-caption\">Car battery diagram showing what&rsquo;s inside | Image Source: Richard McCuistian<\/figcaption><\/figure>\n\n\n\n<p><strong>A: Removing the battery lid exposes six cells that are separated by a plastic wall. Each of these cells generates approximately 2.1V of DC, bringing up the total voltage to around 12.6V. Lead plate straps are welded together to connect each cell, slightly towering over each plastic wall.<\/strong><\/p>\n\n\n\n<p>Each plate strap is connected to several lead plates, which are formed into grid-type structures to maximize the surface area. These grids are then covered with a paste of lead oxide, which acts as a sponge that absorbs electrolyte fluid.<\/p>\n\n\n\n<p>Electrolyte fluid is the term used to describe the acid solution in the battery, which is made up of 36% sulfuric acid and 64% water.<\/p>\n<\/body><\/html>\n","protected":false},"excerpt":{"rendered":"<p><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\"> &lt; 1<\/span> <span class=\"rt-label rt-postfix\">minute<\/span><\/span>A: Removing the battery lid exposes six cells that are separated by a plastic wall. Each of these cells generates&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/what-does-the-inside-of-a-car-battery-look-like\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":1651,"featured_media":180829,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":true,"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[1034,52,3758],"tags":[73],"ppma_author":[2607,2985],"class_list":{"0":"post-180828","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-auto-repair","8":"category-diy","9":"category-electrical-system","10":"tag-battery","11":"entry"},"acf":{"adrotate_specific_mobile_ad":"","adrotate_specific_desktop_ad":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>What Does the Inside of a Car Battery Look Like? - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"The inside of a car battery might not be what you have in mind. Find out what it looks like in this article.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.carparts.com\/blog\/what-does-the-inside-of-a-car-battery-look-like\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What Does the Inside of a Car Battery Look Like? - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"The inside of a car battery might not be what you have in mind. 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Richard has worked for nearly 50 years in the automotive field as a professional technician, an instructor, a freelance automotive writer for Motor Age, ACtion magazine, Power Stroke Registry, and others (published every year since May 2000). He has developed training courses and written or edited training material for companies in the U.S. Canada, and the Netherlands, and even Bulgaria. He maintained an \u201cask a mechanic\u201d website for 10 years answering questions emailed to him from all over the world.\r\n\r\nRichard has an instructional automotive YouTube channel \u201cMcCuistian\u201d with 13,500 subscribers and over 1,300 videos. Much of his professional work requires photography and videography in shop environments, but Richard also enjoys taking pictures of landscapes, skyscapes, old barns and houses, small towns. He has produced a coffee table book of digital watercolors called \u201cMemories of South Alabama\u201d created from his personal photos, along with a dozen Christian fiction short original novels and a collection of short stories, all available in Kindle or softcover format. Richard has written a 2,500-word Bible study every week for the past 20 years and uses it to teach a small group at his church every Sunday morning.\r\n\r\n<strong>Credentials:<\/strong>\r\n\r\n<ul class=\"author-list\">\r\n<li><p>ASE Certified for more than 30 years in 10 categories, including L1 Advanced Engine Performance and Light Vehicle Diesel.<\/p><\/li>\r\n<li><p>Professional Mechanic\/Technician for 25 years with experience on diesel and gasoline engines, vehicles and equipment (including hydraulics).<\/p><\/li>\r\n<li><p>Spent 5 years in fleet maintenance, 20 years in independent shops and dealerships (VW, Mazda, Renault, Jeep, Ford, Lincoln), specializing in driveability and electronics for the last 14 years of his career at the same dealership.<\/p><\/li>\r\n<li><p>Senior Contributing Editor at Motor Age Magazine, first published in Motor Age in May of 2000 and every year since. 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Wallace Community College worked at professional shop speed during his tenure to prepare graduates for production level work in the real world.<\/p><\/li>\r\n<\/ul>"}],"_links":{"self":[{"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/posts\/180828","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/users\/1651"}],"replies":[{"embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/comments?post=180828"}],"version-history":[{"count":0,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/posts\/180828\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/media\/180829"}],"wp:attachment":[{"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/media?parent=180828"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/categories?post=180828"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/tags?post=180828"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/ppma_author?post=180828"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}