{"id":1752,"date":"2011-10-16T14:14:37","date_gmt":"2011-10-16T19:14:37","guid":{"rendered":"http:\/\/www.summet.com\/blog\/?p=1752"},"modified":"2011-10-16T14:14:37","modified_gmt":"2011-10-16T19:14:37","slug":"tracking-individual-battery-voltages","status":"publish","type":"post","link":"https:\/\/www.summet.com\/blog\/2011\/10\/16\/tracking-individual-battery-voltages\/","title":{"rendered":"Tracking individual battery voltages"},"content":{"rendered":"<p><a href=\"http:\/\/www.summet.com\/blog\/wp-content\/uploads\/2011\/10\/six-batteries.png\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.summet.com\/blog\/wp-content\/uploads\/2011\/10\/six-batteries.png\" alt=\"Line graph that shows the voltage of six batteries dropping under load. All six batteries follow the same deep V pattern, staying within 0.1 volt of each other.\" title=\"Voltage drop of six batteries under load\" width=\"600\" height=\"371\" class=\"alignleft size-full wp-image-1753\" srcset=\"https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2011\/10\/six-batteries.png 600w, https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2011\/10\/six-batteries-300x185.png 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/p>\n<p>This graph shows the voltage (multiplied by 10, so 65=6.5 volts, and 50 = 5.0 volts) batteries 1-6 of my electric pickup while accelerating. My first battery (blue) is consistently 0.1 volt below the others, so I am keeping an eye on it. But this graph shows that although it is a 1\/10th of a volt lower, it does not sink lower than the other batteries under load, so it appears to be holding up well so far.<\/p>\n<p>The graph also shows off my new (to me) Pak Trakr system. The Pak Trakr system connects to each battery in your pack with small remotes that daisy chain together. Each remote monitors six batteries and transmits the voltage levels once a second to a display and optional serial data logger.<\/p>\n<p><a href=\"http:\/\/www.summet.com\/blog\/wp-content\/uploads\/2011\/10\/single_unit_closeup.jpg\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.summet.com\/blog\/wp-content\/uploads\/2011\/10\/single_unit_closeup-225x300.jpg\" alt=\"\" title=\"Pak Trakr Remote Sensing Unit\" width=\"225\" height=\"300\" class=\"alignright size-medium wp-image-1756\" srcset=\"https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2011\/10\/single_unit_closeup-225x300.jpg 225w, https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2011\/10\/single_unit_closeup-768x1024.jpg 768w, https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2011\/10\/single_unit_closeup.jpg 1920w\" sizes=\"auto, (max-width: 225px) 100vw, 225px\" \/><\/a><br \/>\n<a href=\"http:\/\/www.summet.com\/blog\/wp-content\/uploads\/2011\/10\/display_soc_all_batteries.jpg\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.summet.com\/blog\/wp-content\/uploads\/2011\/10\/display_soc_all_batteries-225x300.jpg\" alt=\"\" title=\"Pak Trakr Display\" width=\"225\" height=\"300\" class=\"alignright size-medium wp-image-1757\" srcset=\"https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2011\/10\/display_soc_all_batteries-225x300.jpg 225w, https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2011\/10\/display_soc_all_batteries-768x1024.jpg 768w, https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2011\/10\/display_soc_all_batteries.jpg 1920w\" sizes=\"auto, (max-width: 225px) 100vw, 225px\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>This graph shows the voltage (multiplied by 10, so 65=6.5 volts, and 50 = 5.0 volts) batteries 1-6 of my electric pickup while accelerating. My first battery (blue) is consistently 0.1 volt below the others, so I am keeping an &hellip; <a href=\"https:\/\/www.summet.com\/blog\/2011\/10\/16\/tracking-individual-battery-voltages\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13,2],"tags":[102],"class_list":["post-1752","post","type-post","status-publish","format-standard","hentry","category-projects","category-technology","tag-etruck"],"_links":{"self":[{"href":"https:\/\/www.summet.com\/blog\/wp-json\/wp\/v2\/posts\/1752","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.summet.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.summet.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.summet.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.summet.com\/blog\/wp-json\/wp\/v2\/comments?post=1752"}],"version-history":[{"count":0,"href":"https:\/\/www.summet.com\/blog\/wp-json\/wp\/v2\/posts\/1752\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.summet.com\/blog\/wp-json\/wp\/v2\/media?parent=1752"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.summet.com\/blog\/wp-json\/wp\/v2\/categories?post=1752"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.summet.com\/blog\/wp-json\/wp\/v2\/tags?post=1752"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}