{"id":577,"date":"2019-03-27T14:28:18","date_gmt":"2019-03-27T14:28:18","guid":{"rendered":"http:\/\/www.adrian-smith31.co.uk\/blog\/?p=577"},"modified":"2020-11-09T17:10:56","modified_gmt":"2020-11-09T17:10:56","slug":"further-update-on-battery-testers","status":"publish","type":"post","link":"https:\/\/www.adrian-smith31.co.uk\/blog\/2019\/03\/further-update-on-battery-testers\/","title":{"rendered":"Further update on battery testers"},"content":{"rendered":"<p><a href=\"http:\/\/www.adrian-smith31.co.uk\/blog\/wp-content\/uploads\/2017\/10\/AA_TesterV5-1.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-572 alignleft\" src=\"http:\/\/www.adrian-smith31.co.uk\/blog\/wp-content\/uploads\/2017\/10\/AA_TesterV5-1-300x234.jpg\" alt=\"\" width=\"300\" height=\"234\" srcset=\"https:\/\/www.adrian-smith31.co.uk\/blog\/wp-content\/uploads\/2017\/10\/AA_TesterV5-1-300x234.jpg 300w, https:\/\/www.adrian-smith31.co.uk\/blog\/wp-content\/uploads\/2017\/10\/AA_TesterV5-1-768x600.jpg 768w, https:\/\/www.adrian-smith31.co.uk\/blog\/wp-content\/uploads\/2017\/10\/AA_TesterV5-1-1024x800.jpg 1024w, https:\/\/www.adrian-smith31.co.uk\/blog\/wp-content\/uploads\/2017\/10\/AA_TesterV5-1-600x469.jpg 600w, https:\/\/www.adrian-smith31.co.uk\/blog\/wp-content\/uploads\/2017\/10\/AA_TesterV5-1.jpg 1335w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a>If you have been reading my blog you will have noticed I made <a href=\"http:\/\/www.adrian-smith31.co.uk\/blog\/2018\/08\/the-useful-tl431-chip\/\">two Arduino based NIMH AA battery testers<\/a> around 2 years ago. One was the first Arduino project I made but it needed some improvement and as I had mentioned in one of my <a href=\"http:\/\/www.adrian-smith31.co.uk\/blog\/2018\/12\/still-here\/\">previous posts<\/a> I&#8217;m really running out of things to make; I don&#8217;t want to end up with a load of gadgets I&#8217;ll never use. So I decided to revisit some of my earlier projects and either scrap \/ repurpose them or improve them. The second tester I made does not really need further improvement as I have already done that and it only gets used once in a while. It is sufficient for my needs so I&#8217;m not that concerned about it&#8217;s shortcomings. This one however I have plans to turn it into a 12V lead acid battery tester but for now I decided to improve the display layout and make better use of the limited 16&#215;2 LCD.<\/p>\n<p>I had already changed the voltage reference from the inaccurate voltage divider method to a TL431 2.5V reference IC so in preparation for the conversion into a 12V SLA tester I have released an updated version of the NIMH tester code with the improved display layout I plan to use for the 12V version. The project page is <a href=\"http:\/\/www.adrian-smith31.co.uk\/blog\/2017\/10\/first-useful-arduino-project\/\">here.<\/a><\/p>\n<p>So next update I will probably show the completed 12V SLA battery tester although I have also been working on a 24V LiFePO4 version of it too which is complete and working but again needs further improvement. That will be shown in a future blog post when I feel the code is release ready. The pump control timer I mentioned before will get a full project page too when I get round to it. The priority now is to convert the AA tester into a 12V battery tester as I have a ton of them to test.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>If you have been reading my blog you will have noticed I made two Arduino based NIMH AA battery testers around 2 years ago. One was the first Arduino project I made but it needed some improvement and as I had mentioned in one of my previous posts I&#8217;m really running out of things to [&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":"Further update on battery testers - Adrian's electronics blog","description":"If you have been reading my blog you will have noticed I made two Arduino based NIMH AA battery testers around 2 years ago. One was the first Arduino project I"},"footnotes":""},"categories":[4,5],"tags":[],"class_list":["post-577","post","type-post","status-publish","format-standard","hentry","category-microcontrollers","category-projects"],"_links":{"self":[{"href":"https:\/\/www.adrian-smith31.co.uk\/blog\/wp-json\/wp\/v2\/posts\/577","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=577"}],"version-history":[{"count":2,"href":"https:\/\/www.adrian-smith31.co.uk\/blog\/wp-json\/wp\/v2\/posts\/577\/revisions"}],"predecessor-version":[{"id":579,"href":"https:\/\/www.adrian-smith31.co.uk\/blog\/wp-json\/wp\/v2\/posts\/577\/revisions\/579"}],"wp:attachment":[{"href":"https:\/\/www.adrian-smith31.co.uk\/blog\/wp-json\/wp\/v2\/media?parent=577"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.adrian-smith31.co.uk\/blog\/wp-json\/wp\/v2\/categories?post=577"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.adrian-smith31.co.uk\/blog\/wp-json\/wp\/v2\/tags?post=577"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}