{"id":682,"date":"2019-12-01T10:44:28","date_gmt":"2019-12-01T10:44:28","guid":{"rendered":"https:\/\/www.adrian-smith31.co.uk\/blog\/?p=682"},"modified":"2020-11-09T17:10:33","modified_gmt":"2020-11-09T17:10:33","slug":"12v-lead-acid-battery-tester-completed","status":"publish","type":"post","link":"https:\/\/www.adrian-smith31.co.uk\/blog\/2019\/12\/12v-lead-acid-battery-tester-completed\/","title":{"rendered":"12V lead acid battery tester completed"},"content":{"rendered":"<figure id=\"attachment_702\" aria-describedby=\"caption-attachment-702\" style=\"width: 300px\" class=\"wp-caption alignleft\"><a href=\"https:\/\/www.adrian-smith31.co.uk\/blog\/wp-content\/uploads\/2019\/12\/12V_tester_1.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-702 size-medium\" src=\"https:\/\/www.adrian-smith31.co.uk\/blog\/wp-content\/uploads\/2019\/12\/12V_tester_1-300x203.jpg\" alt=\"\" width=\"300\" height=\"203\" srcset=\"https:\/\/www.adrian-smith31.co.uk\/blog\/wp-content\/uploads\/2019\/12\/12V_tester_1-300x203.jpg 300w, https:\/\/www.adrian-smith31.co.uk\/blog\/wp-content\/uploads\/2019\/12\/12V_tester_1-768x520.jpg 768w, https:\/\/www.adrian-smith31.co.uk\/blog\/wp-content\/uploads\/2019\/12\/12V_tester_1-600x406.jpg 600w, https:\/\/www.adrian-smith31.co.uk\/blog\/wp-content\/uploads\/2019\/12\/12V_tester_1.jpg 1020w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><figcaption id=\"caption-attachment-702\" class=\"wp-caption-text\">Modified tester for 12V &#8211; the load resistors and relay \/ power board have been moved to an old inverter case.<\/figcaption><\/figure>\n<p>I mentioned before I was going to make a 12 volt lead acid battery tester at one point. I&#8217;ve repurposed the single AA tester I had made back in 2017 and converted it to test higher voltage batteries. Without repeating myself from earlier posts I have just decided to keep this short and just put the 12V tester version on the original project page rather than creating a new one. It works just the same as the AA version in that it displays total runtime and approximate Ah capacity. It is a cut down version of my <a href=\"https:\/\/www.adrian-smith31.co.uk\/blog\/2019\/09\/a-high-capacity-lithium-battery-tester-with-printout\/\">24V lithium battery tester<\/a> which I made for work. The original project page is <a href=\"http:\/\/www.adrian-smith31.co.uk\/blog\/2017\/10\/first-useful-arduino-project\/\">here.<\/a> You will want to scroll down to the latest updates section where you will find the schematic and code.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I mentioned before I was going to make a 12 volt lead acid battery tester at one point. I&#8217;ve repurposed the single AA tester I had made back in 2017 and converted it to test higher voltage batteries. Without repeating myself from earlier posts I have just decided to keep this short and just put [&hellip;]<\/p>\n","protected":false},"author":179,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"slim_seo":{"title":"12V lead acid battery tester completed - Adrian's electronics blog","description":"Modified tester for 12V - the load resistors and relay \/ power board have been moved to an old inverter case. I mentioned before I was going to make a 12 volt l"},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-682","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/www.adrian-smith31.co.uk\/blog\/wp-json\/wp\/v2\/posts\/682","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.adrian-smith31.co.uk\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.adrian-smith31.co.uk\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.adrian-smith31.co.uk\/blog\/wp-json\/wp\/v2\/users\/179"}],"replies":[{"embeddable":true,"href":"https:\/\/www.adrian-smith31.co.uk\/blog\/wp-json\/wp\/v2\/comments?post=682"}],"version-history":[{"count":4,"href":"https:\/\/www.adrian-smith31.co.uk\/blog\/wp-json\/wp\/v2\/posts\/682\/revisions"}],"predecessor-version":[{"id":704,"href":"https:\/\/www.adrian-smith31.co.uk\/blog\/wp-json\/wp\/v2\/posts\/682\/revisions\/704"}],"wp:attachment":[{"href":"https:\/\/www.adrian-smith31.co.uk\/blog\/wp-json\/wp\/v2\/media?parent=682"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.adrian-smith31.co.uk\/blog\/wp-json\/wp\/v2\/categories?post=682"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.adrian-smith31.co.uk\/blog\/wp-json\/wp\/v2\/tags?post=682"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}