{"id":5117,"date":"2020-06-02T07:00:00","date_gmt":"2020-06-02T11:00:00","guid":{"rendered":"https:\/\/langa.com\/?p=5117"},"modified":"2020-05-29T14:33:30","modified_gmt":"2020-05-29T18:33:30","slug":"why-does-a-device-with-no-battery-have-enough-battery-to-show-me-there-is-no-battery-yet-does-not-let-me-do-what-i-want-to","status":"publish","type":"post","link":"https:\/\/langa.com\/index.php\/2020\/06\/02\/why-does-a-device-with-no-battery-have-enough-battery-to-show-me-there-is-no-battery-yet-does-not-let-me-do-what-i-want-to\/","title":{"rendered":"“Why does a device with no battery have enough battery to show me there is no battery, yet does not let me do what I want to?”"},"content":{"rendered":"\n

(Questioner requested anonymity)<\/small><\/em><\/p>\n\n\n\n

On Li-ion consumer devices, “0% battery\u201d doesn’t mean \u201cno energy\u201d but rather \u201cno energy available for anything except to wait for the next recharge.\u201d<\/p>\n\n\n\n

That’s because Li-ion batteries require careful regulation of volts, amps, and temperature. The charging circuits need to save the last few percent of battery for themselves, so those circuits can remain alive — ready and able to safely manage the next recharge.<\/p>\n\n\n\n

Permalink: https:\/\/langa.com\/?p=5117<\/a><\/strong><\/em><\/p>\n\n\n\n

\"[seperator]\"<\/figure><\/div>\n\n\n\n

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(Want free notification of new content? Click<\/em> <\/strong>here<\/a><\/b>!)<\/p>\n","protected":false},"excerpt":{"rendered":"

(Questioner requested anonymity) On Li-ion consumer devices, “0% battery\u201d doesn’t mean \u201cno energy\u201d but rather \u201cno energy available for anything except to wait for the next recharge.\u201d That’s because Li-ion batteries require careful regulation of volts, amps, and temperature. The charging circuits need to save the last few percent of battery for themselves, so those…<\/p>\n","protected":false},"author":1,"featured_media":5119,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[7,30],"tags":[],"class_list":["post-5117","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-a-reader-asks","category-hardware"],"aioseo_notices":[],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/langa.com\/wp-content\/uploads\/2020\/05\/low-battery-indicator-stylized-rf-e1590776520349.jpg?fit=350%2C290&ssl=1","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/paaiox-1kx","jetpack-related-posts":[{"id":3656,"url":"https:\/\/langa.com\/index.php\/2019\/10\/29\/how-long-does-it-take-for-a-li-ion-battery-to-degrade\/","url_meta":{"origin":5117,"position":0},"title":"“How long does it take for a Li-ion battery to degrade?”","author":"Fred Langa","date":"2019-10-29","format":false,"excerpt":"(Answer requested by Jake Timchak) Degrade by how much? Lithium-ion batteries are \u201cconsumables\u201d that inevitably get used up, even just sitting on the shelf. Li-ion batteries actually start degrading (very slowly) the moment they\u2019re assembled at the factory. Each discharge\/recharge cycle then accelerates the irreversible chemical changes in the battery,\u2026","rel":"","context":"In "A reader asks..."","block_context":{"text":"A reader asks...","link":"https:\/\/langa.com\/index.php\/category\/a-reader-asks\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":3551,"url":"https:\/\/langa.com\/index.php\/2019\/10\/08\/is-there-any-way-to-revive-an-over-discharged-li-ion-18650-battery\/","url_meta":{"origin":5117,"position":1},"title":"“Is there any way to revive an over-discharged Li-Ion 18650 battery?”","author":"Fred Langa","date":"2019-10-08","format":false,"excerpt":"Not a good idea. The protective circuitry (in the Li-ion battery or in the device that the battery powers) is designed to prevent dangerous over- and undercharging, which can cause the battery to overheat and catch fire. (Remember all those hoverboard fires a couple years ago? That's what you get\u2026","rel":"","context":"In "A reader asks..."","block_context":{"text":"A reader asks...","link":"https:\/\/langa.com\/index.php\/category\/a-reader-asks\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/langa.com\/wp-content\/uploads\/2019\/10\/18650-batteries.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":2505,"url":"https:\/\/langa.com\/index.php\/2019\/04\/08\/how-to-make-lithium-ion-batteries-last-for-years\/","url_meta":{"origin":5117,"position":2},"title":"How to make lithium-ion batteries last for years","author":"Fred Langa","date":"2019-04-08","format":false,"excerpt":"The older column reprinted below was originally published in the August 13, 2015 , Windows Secrets newsletter. This older content supplements brand-new content posted today (April 8, 2019) in the AskWoody Plus newsletter, available here. An upcoming column will update and refine the information below. (I\u2019m reprinting selected Windows Secrets\u2026","rel":"","context":"In "AskWoody Plus"","block_context":{"text":"AskWoody Plus","link":"https:\/\/langa.com\/index.php\/category\/askwoody-plus\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/langa.com\/wp-content\/uploads\/2019\/04\/W20150813-TS-BatteryFromTop.png?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":3882,"url":"https:\/\/langa.com\/index.php\/2019\/12\/10\/does-exposing-my-phone-to-cold-weather-damage-battery-and-if-so-is-the-damage-permanent\/","url_meta":{"origin":5117,"position":3},"title":"“Does exposing my phone to cold weather damage battery, and if so, is the damage permanent?”","author":"Fred Langa","date":"2019-12-10","format":false,"excerpt":"(Answer requested by Dan Hopper) Chilly temps (below room temp, but above freezing) will temporarily reduce the amount of power available from a given battery charge, but won\u2019t permanently hurt anything. Freezing cold may render a phone completely, but temporarily, inert. However attempting to recharge a below-freezing battery can cause\u2026","rel":"","context":"In "A reader asks..."","block_context":{"text":"A reader asks...","link":"https:\/\/langa.com\/index.php\/category\/a-reader-asks\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/langa.com\/wp-content\/uploads\/2019\/11\/winter-cold.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/langa.com\/wp-content\/uploads\/2019\/11\/winter-cold.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/langa.com\/wp-content\/uploads\/2019\/11\/winter-cold.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/langa.com\/wp-content\/uploads\/2019\/11\/winter-cold.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":2960,"url":"https:\/\/langa.com\/index.php\/2019\/06\/20\/what-is-the-fastest-and-safest-method-for-putting-out-a-lithium-ion-battery-fire\/","url_meta":{"origin":5117,"position":4},"title":"“What is the fastest and safest method for putting out a lithium-ion battery fire?”","author":"Fred Langa","date":"2019-06-20","format":false,"excerpt":"(Answer requested by Richard Janezic) LI-ion batteries are considered Class B (flammable liquids\/gases) fire hazards (info). LI-ion fires are ferocious, and the gases are nasty. If there's a fire, unplug the device (if plugged in), call the fire department, and then use an ABC- or BC-rated fire extinguisher (info) to\u2026","rel":"","context":"In "A reader asks..."","block_context":{"text":"A reader asks...","link":"https:\/\/langa.com\/index.php\/category\/a-reader-asks\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/img.youtube.com\/vi\/YuKF8XfCVKQ\/0.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":5057,"url":"https:\/\/langa.com\/index.php\/2020\/05\/21\/what-will-happen-if-i-dont-replace-immediately-a-swollen-lithium-ion-battery\/","url_meta":{"origin":5117,"position":5},"title":"“What will happen if I don’t replace immediately a swollen lithium ion battery?”","author":"Fred Langa","date":"2020-05-21","format":false,"excerpt":"(Answer requested by Arnielyn Arellano) When a Li-ion battery bulges, it usually means a near-failure generated toxic, flammable gases. Your battery's case did its job --- it contained the gases so far --- but at very high internal pressure (hence the swelling). In other words, your battery\u2019s near-failure has turned\u2026","rel":"","context":"In "A reader asks..."","block_context":{"text":"A reader asks...","link":"https:\/\/langa.com\/index.php\/category\/a-reader-asks\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/img.youtube.com\/vi\/0nrsoMsEMNU\/0.jpg?resize=350%2C200","width":350,"height":200},"classes":[]}],"jetpack_likes_enabled":false,"_links":{"self":[{"href":"https:\/\/langa.com\/index.php\/wp-json\/wp\/v2\/posts\/5117","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/langa.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/langa.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/langa.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/langa.com\/index.php\/wp-json\/wp\/v2\/comments?post=5117"}],"version-history":[{"count":4,"href":"https:\/\/langa.com\/index.php\/wp-json\/wp\/v2\/posts\/5117\/revisions"}],"predecessor-version":[{"id":5122,"href":"https:\/\/langa.com\/index.php\/wp-json\/wp\/v2\/posts\/5117\/revisions\/5122"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/langa.com\/index.php\/wp-json\/wp\/v2\/media\/5119"}],"wp:attachment":[{"href":"https:\/\/langa.com\/index.php\/wp-json\/wp\/v2\/media?parent=5117"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/langa.com\/index.php\/wp-json\/wp\/v2\/categories?post=5117"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/langa.com\/index.php\/wp-json\/wp\/v2\/tags?post=5117"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}