{"id":565479,"date":"2023-03-18T16:00:29","date_gmt":"2023-03-18T13:00:29","guid":{"rendered":"https:\/\/en.buradabiliyorum.com\/why-evs-still-have-a-12v-battery-review-geek\/"},"modified":"2023-03-18T16:00:29","modified_gmt":"2023-03-18T13:00:29","slug":"why-evs-still-have-a-12v-battery-review-geek","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/why-evs-still-have-a-12v-battery-review-geek\/","title":{"rendered":"#Why EVs Still Have a 12V Battery \u2013 Review Geek"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6a36e12fe15f3\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #dd3333;color:#dd3333\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #dd3333;color:#dd3333\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a36e12fe15f3\" checked aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/buradabiliyorum.com\/en\/why-evs-still-have-a-12v-battery-review-geek\/#%E2%80%9CWhy_EVs_Still_Have_a_12V_Battery_%E2%80%93_Review_Geek%E2%80%9D\" >&#8220;Why EVs Still Have a 12V Battery \u2013 Review Geek&#8221;<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/buradabiliyorum.com\/en\/why-evs-still-have-a-12v-battery-review-geek\/#What_Does_the_12V_Battery_in_an_EV_Do\" >What Does the 12V Battery in an EV Do?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/buradabiliyorum.com\/en\/why-evs-still-have-a-12v-battery-review-geek\/#Does_an_EV_Have_An_Alternator\" >Does an EV Have An Alternator?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/buradabiliyorum.com\/en\/why-evs-still-have-a-12v-battery-review-geek\/#What_Happens_If_the_12V_Battery_Dies\" >What Happens If the 12V Battery Dies?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/buradabiliyorum.com\/en\/why-evs-still-have-a-12v-battery-review-geek\/#Will_Lithium-Ion_Replace_the_Lead_12V\" >Will Lithium-Ion Replace the Lead 12V?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h1><span class=\"ez-toc-section\" id=\"%E2%80%9CWhy_EVs_Still_Have_a_12V_Battery_%E2%80%93_Review_Geek%E2%80%9D\"><\/span>&#8220;Why EVs Still Have a 12V Battery \u2013 Review Geek&#8221;<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<div id=\"article-header-area\">\n<p class=\"subheadingtext\">That old-school 12V battery powers a lot of stuff. <\/p>\n<p><!-- .entry-meta -->\n<\/div>\n<div id=\"article-content-area\">\n<figure style=\"width: 1920px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"type:primaryImage size-full wp-image-147270\" data-pagespeed-no-defer=\"\" src=\"https:\/\/www.reviewgeek.com\/p\/uploads\/2023\/03\/2304ec62.jpg?width=1200\" alt=\"Closeup of a car 12V battery\" width=\"1920\" height=\"1080\"\/><figcaption class=\"wp-caption-text\"><span class=\"type:primaryImage imagecredit\"><a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.shutterstock.com\/image-photo\/closeup-new-battery-car-engine-room-541442215\">Zeljko Radojko\/Shutterstock.com<\/a><\/span><\/figcaption><\/figure>\n<p>While electric cars have huge lithium-ion battery packs to turn the wheels, a regular 12V lead-acid battery handles everything else. At least for now.<\/p>\n<p>Your fancy new electric vehicle or PHEV (plug-in hybrid electric vehicle) runs on massive lithium-ion battery packs and electric motors. However, if you look around, you\u2019ll still find your typical 12V car battery or a lead-acid battery.<\/p>\n<p>While EV battery <a href=\"https:\/\/buradabiliyorum.com\/en\/category\/technology\/\" data-internallinksmanager029f6b8e52c=\"4\" title=\"Technology\" target=\"_blank\" rel=\"noopener\">technology<\/a> continues to improve yearly, most all-electric cars still have a 12V battery like any gas-powered vehicle. This familiar battery is what the car uses to power all the accessories, including the radio and security system, among other things.<\/p>\n<h2 role=\"heading\" aria-level=\"2\"><span class=\"ez-toc-section\" id=\"What_Does_the_12V_Battery_in_an_EV_Do\"><\/span><a rel=\"nofollow noopener\" target=\"_blank\" name=\"autotoc_anchor_0\">What Does the 12V Battery in an EV Do?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<figure style=\"width: 1920px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-132951\" data-pagespeed-lazy-src=\"https:\/\/www.reviewgeek.com\/p\/uploads\/2022\/10\/cbaa5fea.jpg\" alt=\"Battery warning light on dashboard\" width=\"1920\" height=\"1080\" src=\"\/pagespeed_static\/1.JiBnMqyl6S.gif\" onload=\"pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);\" onerror=\"this.onerror=null;pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);\"\/><figcaption class=\"wp-caption-text\"><span class=\"imagecredit\"><a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.shutterstock.com\/image-photo\/battery-warning-light-car-dashboard-2154691983\">Bjoern Wylezich\/Shutterstock.com<\/a><\/span><\/figcaption><\/figure>\n<p>Electric cars have two main electrical systems that handle everything. The first is a powerful high-voltage system (400-800V) that makes your car move. Those lithium-ion battery cells deliver all the power to motors that crank out torque and spin the wheels.<\/p>\n<p>The secondary system is just as important, and the low-voltage 12V battery powers almost everything else. That regular 12V car battery controls your vehicle\u2019s ECU (electronic control unit) or the car\u2019s brain. This system unlocks the doors with your phone or key fob, runs the stereo or infotainment display, dash gauges, alarm system, air conditioner, interior lights, and more.<\/p>\n<p>The 12V battery controls most of the stuff on the inside, while the bigger battery system handles the outside. That\u2019s an oversimplified explanation, as there\u2019s more to it than that, but you get the gist of it.<\/p>\n<p>Additionally, the 12V battery talks to the other high-voltage system with a power relay and is what \u201cstarts\u201d your electric vehicle, in a sense. An EV doesn\u2019t need cold cranking amps to turn over a gasoline engine, but it\u2019s still required to allow the two systems to communicate and let the ECU get an electric car rolling. If the 12V battery dies, you can\u2019t operate an EV.<\/p>\n<p>When your vehicle isn\u2019t in use or during an accident, the 12V system cuts off that dangerous high-voltage system for safety reasons. Basically, there\u2019s a good reason EVs still have a regular car battery.<\/p>\n<p>More importantly, the 12-volt system is affordable, reliable, and something all automakers understand well. Trying to redesign every aspect, convert those hugely powerful battery systems into a lower level for the stereo, and having to change everything isn\u2019t very cost-efficient.<\/p>\n<h2 role=\"heading\" aria-level=\"2\"><span class=\"ez-toc-section\" id=\"Does_an_EV_Have_An_Alternator\"><\/span><a rel=\"nofollow noopener\" target=\"_blank\" name=\"autotoc_anchor_1\">Does an EV Have An Alternator?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<figure style=\"width: 1920px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-107098\" data-pagespeed-lazy-src=\"https:\/\/www.reviewgeek.com\/p\/uploads\/2022\/01\/bd50ea3a.jpg\" alt=\"2022 Tesla Model 3\" width=\"1920\" height=\"1080\" src=\"\/pagespeed_static\/1.JiBnMqyl6S.gif\" onload=\"pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);\" onerror=\"this.onerror=null;pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);\"\/><figcaption class=\"wp-caption-text\"><span class=\"imagecredit\">Tesla<\/span><\/figcaption><\/figure>\n<p>Now that you know an EV has a regular car battery, your next question is whether EVs have an alternator. Interestingly enough, most EVs do not have a traditional alternator.<\/p>\n<p>An alternator takes the mechanical energy from your gas-powered engine as it rotates and turns it into electrical energy to recharge the 12V battery. As a result, it always has a charge and can start your car, unlock the doors, and has juice as long as you drive or start the engine with enough frequency.<\/p>\n<p>That\u2019s why the battery needs a jump when you let a car sit for too long. The alternator wasn\u2019t able to keep it charged. Electric vehicles don\u2019t have a motor, so there\u2019s nothing to spin the alternator and charge a 12V battery.<\/p>\n<p>Instead, many EVs use a DC-to-DC converter that sends power from the high-voltage system to the smaller 12V battery system when necessary. Then, that regular car battery is always charged up and ready to unlock your doors and do its job.<\/p>\n<h2 role=\"heading\" aria-level=\"2\"><span class=\"ez-toc-section\" id=\"What_Happens_If_the_12V_Battery_Dies\"><\/span><a rel=\"nofollow noopener\" target=\"_blank\" name=\"autotoc_anchor_2\">What Happens If the 12V Battery Dies?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<figure style=\"width: 1920px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-148275\" data-pagespeed-lazy-src=\"https:\/\/www.reviewgeek.com\/p\/uploads\/2023\/03\/8aa9791a.jpg\" alt=\"12V car battery with jumper cables attached.\" width=\"1920\" height=\"1080\" src=\"\/pagespeed_static\/1.JiBnMqyl6S.gif\" onload=\"pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);\" onerror=\"this.onerror=null;pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);\"\/><figcaption class=\"wp-caption-text\"><span class=\"imagecredit\"><a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.shutterstock.com\/image-photo\/car-battery-red-black-jumper-cables-455077162\">optimarc\/Shutterstock.com<\/a><\/span><\/figcaption><\/figure>\n<p>So, what happens if the 12V battery in an EV dies? Welp, the same thing that happens in a regular gasoline-powered car. Depending on how dead the battery is, you won\u2019t be able to unlock the doors, use the radio, or drive the car. That\u2019s because the power source for the brains of the operation doesn\u2019t have any charge left.<\/p>\n<p>Yes, you can quickly jump-start an EV like a regular car, but you\u2019re not \u201cjumping\u201d the big lithium-ion packs. Instead, you\u2019ll jump-start the little 12V battery that almost every car has under the hood or in the trunk.<\/p>\n<p>However, it\u2019s important to remember that you should only mess with the standard 12V battery. Furthermore, <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/redirect.viglink.com\/?key=14d03d76e0a6285761e58439513dfd19&amp;u=https%3A%2F%2Fwww.kbb.com%2Fcar-advice%2Fjump-start-electric-car-battery%2F&amp;cuid=xid:{xid}&amp;___trxnet=vg\">according to KBB<\/a>,\u00a0you shouldn\u2019t use another electric vehicle (EV) to jump-start your EV\u2019s 12-volt battery. Instead, find a regular gas car or use a portable jump starter.<\/p>\n<p>It\u2019s also worth mentioning that, if possible, make sure your EV is off and set to park before you start. And if you\u2019re worried about anything or can\u2019t locate the regular 12V battery, wait for an expert or roadside assistance.<\/p>\n<h2 role=\"heading\" aria-level=\"2\"><span class=\"ez-toc-section\" id=\"Will_Lithium-Ion_Replace_the_Lead_12V\"><\/span><a rel=\"nofollow noopener\" target=\"_blank\" name=\"autotoc_anchor_3\">Will Lithium-Ion Replace the Lead 12V?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-147664\" data-pagespeed-lazy-src=\"https:\/\/www.reviewgeek.com\/p\/uploads\/2023\/03\/9eb6ac73.jpg\" alt=\"Tesla logo on the hood of a vehicle.\" width=\"1920\" height=\"1080\" src=\"\/pagespeed_static\/1.JiBnMqyl6S.gif\" onload=\"pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);\" onerror=\"this.onerror=null;pagespeed.lazyLoadImages.loadIfVisibleAndMaybeBeacon(this);\"\/><span class=\"imagecredit\">Justin Duino \/ Review Geek<\/span><\/p>\n<p>While traditional 12V lead-acid batteries have powered vehicles for a long time, we\u2019re starting to see a shift in the landscape. For example, newer Tesla Model S and Model X vehicles don\u2019t have regular old battery systems. Instead, the company opted to use a new <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.autoevolution.com\/news\/tesla-moves-to-solve-the-problem-of-dying-12-volt-li-ion-batteries-on-the-lfp-model-3-183306.html\">12-volt lithium-ion auxiliary battery<\/a> system.<\/p>\n<p>And while a Li-ion 12V battery costs more to replace than the older style, they\u2019re lighter, smaller, and last longer. We could see more auto manufacturers switch to this system or even a bigger 48V auxiliary battery. Why? Because they\u2019ll run longer, they don\u2019t need the cranking apps to turn over a gas engine, yet deliver more than enough juice to keep up with the growing demand for infotainment systems, self-driving, sensors, cameras, and more.<\/p>\n<p>For now, most vehicles on the road, electric or not, still have a regular 12V lead-acid battery. However, don\u2019t be surprised if that starts to change as electric vehicles continue to gain popularity.\n<\/p><\/div>\n<p><script>\nsetTimeout(function(){\n  !function(f,b,e,v,n,t,s)\n  {if(f.fbq)return;n=f.fbq=function(){n.callMethod?\n  n.callMethod.apply(n,arguments):n.queue.push(arguments)};\n  if(!f._fbq)f._fbq=n;n.push=n;n.loaded=!0;n.version='2.0';\n  n.queue=[];t=b.createElement(e);t.async=!0;\n  t.src=v;s=b.getElementsByTagName(e)[0];\n  s.parentNode.insertBefore(t,s)}(window, document,'script',\n  'https:\/\/connect.facebook.net\/en_US\/fbevents.js');\n  fbq('init', '1137093656460433');\n  fbq('track', 'PageView');\n  },3000);\n<\/script><\/p>\n<blockquote><p><strong><span style=\"color: #ff6600;\">If you liked the article, do not forget to share it with your friends. Follow us on\u00a0<span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/news.google.com\/publications\/CAAqBwgKMLG0nwswvr63Aw\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Google News<\/a><\/span>\u00a0too, click on the star and choose us from your favorites.<\/span><\/strong><\/p><\/blockquote>\n<blockquote>\n<p style=\"text-align: center;\">For forums sites go to <span style=\"color: #ff9900;\"><a style=\"color: #ff9900;\" href=\"https:\/\/forum.buradabiliyorum.com\/\" target=\"_blank\" rel=\"noopener\">Forum.BuradaBiliyorum.Com<\/a><\/span><\/strong><\/p>\n<\/blockquote>\n<blockquote>\n<p style=\"text-align: center;\"><strong>If you want to read more like this article, you can visit our <span style=\"color: #ff9900;\"><a style=\"color: #ff9900;\" href=\"https:\/\/en.buradabiliyorum.com\/technology\/\" target=\"_blank\" rel=\"noopener\">Technology category.<\/a><\/span><\/strong><\/p>\n<\/blockquote>\n<p><span style=\"color: black;\"><a style=\"color: #ff9900;\" href=\"https:\/\/www.reviewgeek.com\/146674\/why-evs-still-have-a-12v-battery\/\" target=\"_blank\" rel=\"noopener\">Source<\/a><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>&#8220;Why EVs Still Have a 12V Battery \u2013 Review Geek&#8221; That old-school 12V battery powers a lot of stuff. Zeljko Radojko\/Shutterstock.com While electric cars have huge lithium-ion battery packs to turn the wheels, a regular 12V lead-acid battery handles everything else. At least for now. Your fancy new electric vehicle or PHEV (plug-in hybrid electric&#8230;<\/p>\n","protected":false},"author":1,"featured_media":565480,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/www.reviewgeek.com\/p\/uploads\/2023\/03\/2304ec62.jpg","fifu_image_alt":"","footnotes":""},"categories":[18],"tags":[],"class_list":["post-565479","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technology"],"_links":{"self":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/565479","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/comments?post=565479"}],"version-history":[{"count":0,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/565479\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media\/565480"}],"wp:attachment":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media?parent=565479"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/categories?post=565479"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/tags?post=565479"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}