{"id":4005,"date":"2026-01-06T06:35:09","date_gmt":"2026-01-06T05:35:09","guid":{"rendered":"https:\/\/www.batteriedeportable.com\/guides-et-conseils\/replace-battery-asus-zenbook-ux305c\/"},"modified":"2026-01-06T06:35:09","modified_gmt":"2026-01-06T05:35:09","slug":"replace-battery-asus-zenbook-ux305c","status":"publish","type":"post","link":"https:\/\/www.batterylaptop.co.uk\/guides\/replace-battery-asus-zenbook-ux305c\/","title":{"rendered":"Replacing the battery in an Asus Zenbook UX305C: full guide"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">If you notice that your <\/span><b><a href=\"https:\/\/www.batterylaptop.co.uk\/battery\/laptop\/asus\/zenbook.html\" target=\"_blank\" rel=\"noopener noreferrer\">Asus Zenbook <\/a>UX305C<\/b><span style=\"font-weight: 400;\"> is draining too quickly, it means it is time to replace the <\/span><b>battery<\/b><span style=\"font-weight: 400;\">. This is a maintenance task that is <\/span><b>very straightforward<\/b><span style=\"font-weight: 400;\">. By following our instructions, you will restore your laptop\u2019s battery life and performance.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">This guide is your <\/span><b>complete step\u2011by\u2011step manual<\/b><span style=\"font-weight: 400;\">: we explain each action in detail so you can carry out a <\/span><b>safe and effective<\/b><span style=\"font-weight: 400;\"> replacement. Care is needed, but the end result is worth it!<\/span><\/p>\n<p><i><span style=\"font-weight: 400;\">Key point:<\/span><\/i><span style=\"font-weight: 400;\"> This model requires the <\/span><b>battery<\/b><span style=\"font-weight: 400;\"> with reference <\/span><b>C31N1411<\/b><span style=\"font-weight: 400;\">. Always make sure your new part matches this reference before you start.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">Preparation: before opening the laptop<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Good preparation is the key to a smooth, trouble\u2011free disassembly.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">1. Tools you\u2019ll need for the replacement<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Make sure you have the following tools ready on your work surface:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">A brand\u2011new <\/span><b>battery<\/b><span style=\"font-weight: 400;\"> (reference <\/span><b>C31N1411<\/b><span style=\"font-weight: 400;\">).<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">A <\/span><b>precision screwdriver<\/b><span style=\"font-weight: 400;\"> kit (for tightening\/loosening the small screws).<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Non\u2011metal tools to open the device: a guitar pick or an old plastic card. <\/span><b>Using metal objects is strongly discouraged<\/b><span style=\"font-weight: 400;\"> to avoid damaging the casing.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">A <\/span><b>clean, well\u2011lit<\/b><span style=\"font-weight: 400;\"> table so you can clearly see all the components.<\/span><\/li>\n<\/ul>\n<h3><span style=\"font-weight: 400;\">2. Making the laptop safe<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Follow these steps to avoid any electrical risk or internal damage:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Shut the laptop down completely:<\/b><span style=\"font-weight: 400;\"> Use the <\/span><b>Shut down<\/b><span style=\"font-weight: 400;\"> option in Windows. Leaving the machine in sleep mode is risky.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Unplug from the mains:<\/b><span style=\"font-weight: 400;\"> The laptop must be <\/span><b>completely disconnected from the wall socket<\/b><span style=\"font-weight: 400;\"> and from the AC adapter.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Remove accessories:<\/b><span style=\"font-weight: 400;\"> Unplug all connected devices: mouse, USB sticks, cables.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Avoid static electricity:<\/b> <b>Discharge any static<\/b><span style=\"font-weight: 400;\"> from your body by touching a metal object that is earthed just before you start working.<\/span><\/li>\n<\/ul>\n<h2><span style=\"font-weight: 400;\">Disassembly: removing the bottom cover<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Patience is your best ally for this part. Every movement should be controlled.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">1. Remove all the screws from the bottom cover<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Place your <\/span><b>Asus Zenbook UX305C<\/b><span style=\"font-weight: 400;\"> upside down on the table. Locate all the screws holding the base in place.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Be careful:<\/b><span style=\"font-weight: 400;\"> Two screws are hidden under the small rubber feet at the back. <\/span><b>Gently lift these two feet<\/b><span style=\"font-weight: 400;\"> to access and remove the hidden screws.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Remove all screws<\/b><span style=\"font-weight: 400;\"> using the appropriate screwdriver.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Recommended method:<\/b><span style=\"font-weight: 400;\"> Keep the screws organised so you can put them back in exactly the same places during reassembly.<\/span><\/li>\n<\/ul>\n<div style=\"padding: 80% 0 0 0; position: relative;\"><iframe style=\"position: absolute; top: 0; left: 0; width: 100%; height: 100%;\" src=\"https:\/\/player.vimeo.com\/video\/1147614984?autoplay=1&amp;loop=1\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"> <\/iframe><\/div>\n<h3><span style=\"font-weight: 400;\">2. Unclip and remove the cover<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">The <\/span><b>bottom casing<\/b><span style=\"font-weight: 400;\"> is held in place not only by screws, but also by internal clips.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Insert your plastic opening tool into the seam.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Slide it gently along the edges<\/b><span style=\"font-weight: 400;\"> to release the plastic catches.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Do not use excessive force!<\/b><span style=\"font-weight: 400;\"> If it seems stuck, double\u2011check that all screws (including those under the feet) have been removed.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Once all the clips are released, <\/span><b>lift off the cover<\/b><span style=\"font-weight: 400;\"> without forcing it.<\/span><\/li>\n<\/ul>\n<h2><span style=\"font-weight: 400;\">Fitting the new battery<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">The <\/span><b>battery<\/b><span style=\"font-weight: 400;\"> is now the most visible component inside the laptop.<\/span><\/p>\n<h3><span style=\"font-weight: 400;\">1. Disconnect and remove the old battery<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">The old <\/span><b>battery<\/b><span style=\"font-weight: 400;\"> is screwed to the <\/span><b>casing<\/b><span style=\"font-weight: 400;\">.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Start by removing all the mounting screws<\/b><span style=\"font-weight: 400;\"> that hold the <\/span><b>battery<\/b><span style=\"font-weight: 400;\"> in place.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Delicate step:<\/b><span style=\"font-weight: 400;\"> The <\/span><b>battery<\/b><span style=\"font-weight: 400;\"> cable is connected to the motherboard. <\/span><b>Unplug this plastic connector<\/b><span style=\"font-weight: 400;\"> by carefully pulling on the connector body, never on the wires.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Once the screws are out and the cable disconnected, <\/span><b>lift out the old battery<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\n<\/ul>\n<h3><span style=\"font-weight: 400;\">2. Install the new battery (C31N1411)<\/span><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Place the new <\/span><b>battery C31N1411<\/b><span style=\"font-weight: 400;\"> into its compartment.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Tighten all the screws<\/b><span style=\"font-weight: 400;\"> to secure it firmly to the <\/span><b>casing<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Reconnect the new battery\u2019s connector<\/b><span style=\"font-weight: 400;\"> to the motherboard. Make sure the <\/span><b>connection is fully seated and properly aligned<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\n<\/ul>\n<h2><span style=\"font-weight: 400;\">Final step: closing up and checking everything works<\/span><\/h2>\n<h3><span style=\"font-weight: 400;\">1. Refit the bottom cover<\/span><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Carefully align the rear <\/span><b>casing<\/b><span style=\"font-weight: 400;\"> with the rest of the laptop.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Press gently around the edges so that all the <\/span><b>retaining clips engage<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Put all the screws back<\/b><span style=\"font-weight: 400;\"> and tighten them.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Stick the two rear rubber feet back on<\/b><span style=\"font-weight: 400;\"> for a neat finish.<\/span><\/li>\n<\/ul>\n<h3><span style=\"font-weight: 400;\">2. First test<\/span><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Plug the laptop into the mains.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Power the machine on.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">It is recommended to let the laptop <\/span><b>charge to 100%<\/b><span style=\"font-weight: 400;\"> the first time you use it. This full cycle helps the system to <\/span><b>correctly detect the new capacity<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>If you notice that your Asus Zenbook UX305C is draining too quickly, it means it is time to replace the battery. This is a maintenance task that is very straightforward. By following our instructions, you will restore your laptop\u2019s battery&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[167],"tags":[],"class_list":["post-4005","post","type-post","status-publish","format-standard","hentry","category-charger"],"_links":{"self":[{"href":"https:\/\/www.batterylaptop.co.uk\/guides\/wp-json\/wp\/v2\/posts\/4005","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.batterylaptop.co.uk\/guides\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.batterylaptop.co.uk\/guides\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.batterylaptop.co.uk\/guides\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.batterylaptop.co.uk\/guides\/wp-json\/wp\/v2\/comments?post=4005"}],"version-history":[{"count":0,"href":"https:\/\/www.batterylaptop.co.uk\/guides\/wp-json\/wp\/v2\/posts\/4005\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.batterylaptop.co.uk\/guides\/wp-json\/wp\/v2\/media?parent=4005"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.batterylaptop.co.uk\/guides\/wp-json\/wp\/v2\/categories?post=4005"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.batterylaptop.co.uk\/guides\/wp-json\/wp\/v2\/tags?post=4005"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}