{"id":63225,"date":"2025-06-23T14:08:35","date_gmt":"2025-06-23T14:08:35","guid":{"rendered":"https:\/\/www.adapter-laptop.com\/blog\/asus-c21n1508-38wh-battery-replacement-guide-compatible-x456-series-models-installation-tips\/"},"modified":"2025-06-23T14:08:35","modified_gmt":"2025-06-23T14:08:35","slug":"asus-c21n1508-38wh-battery-replacement-guide-compatible-x456-series-models-installation-tips","status":"publish","type":"post","link":"https:\/\/www.adapter-laptop.com\/blog\/asus-c21n1508-38wh-battery-replacement-guide-compatible-x456-series-models-installation-tips\/","title":{"rendered":"ASUS C21N1508 38Wh Battery Replacement Guide | Compatible X456 Series Models &#038; Installation Tips"},"content":{"rendered":"<h1>ASUS C21N1508 38Wh Laptop Battery Replacement Guide<\/h1>\n<p>If your ASUS laptop is struggling to hold a charge or shutting down unexpectedly, you&#8217;ve come to the right place. This comprehensive guide covers everything Australian and New Zealand users need to know about replacing their ASUS battery with the genuine C21N1508 38Wh model.<\/p>\n<div style=\"text-align:center; margin:30px 0;\"><a href=\"https:\/\/www.adapter-laptop.com\/battery\/5076-asus-c21n1508-38wh-battery.html\" style=\"display:inline-block;\"><img decoding=\"async\" src=\"https:\/\/www.adapter-laptop.com\/28749-large_default\/asus-c21n1508-38wh-battery.jpg\" alt=\"ASUS C21N1508 38Wh Replacement Battery\" style=\"max-width:100%; height:auto; border:1px solid #ddd; border-radius:5px;\"><\/a><\/div>\n<div style=\"text-align:center; margin:20px 0;\"><a href=\"https:\/\/www.adapter-laptop.com\/battery\/5076-asus-c21n1508-38wh-battery.html\" style=\"display:inline-block; background:#007bff; color:white; padding:15px 30px; text-decoration:none; border-radius:5px; font-weight:bold; font-size:18px;\">Shop ASUS C21N1508 38Wh Battery<\/a><\/div>\n<h2>Battery models &#038; part numbers<\/h2>\n<div class=\"table-scroll\" style=\"overflow-x:auto;\">\n<table style=\"width:100%; border-collapse:collapse;\">\n<thead>\n<tr style=\"background:#f8f9fa;\">\n<th style=\"border:1px solid #ddd; padding:12px; text-align:left;\">Reference \/ P\/N<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #ddd; padding:12px;\">Asus C21N1508<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd; padding:12px;\">Asus C21Pq95<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd; padding:12px;\">Asus-C21N1508-38Wh<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h2>Compatible models<\/h2>\n<div class=\"table-scroll\" style=\"overflow-x:auto;\">\n<table style=\"width:100%; border-collapse:collapse;\">\n<thead>\n<tr style=\"background:#f8f9fa;\">\n<th style=\"border:1px solid #ddd; padding:12px; text-align:left;\">Model<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #ddd; padding:12px;\">Asus 0B200-01740000<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd; padding:12px;\">Asus 0B200-01740100<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd; padding:12px;\">Asus X456UA<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd; padding:12px;\">Asus X456UB<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd; padding:12px;\">Asus X456UF<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd; padding:12px;\">Asus X456UJ<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd; padding:12px;\">Asus X456UQ<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd; padding:12px;\">Asus X456UR<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd; padding:12px;\">Asus X456UVs<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h2>Introduction<\/h2>\n<p>The ASUS C21N1508 38Wh battery is specifically designed for various ASUS X456 series laptops and compatible models. This lithium-ion battery provides reliable power for your daily computing needs across Australia and New Zealand. Whether you&#8217;re a student, professional, or casual user, having a properly functioning battery ensures your laptop remains productive when you need it most.<\/p>\n<h2>Common signs you need a replacement<\/h2>\n<div class=\"table-scroll\" style=\"overflow-x:auto;\">\n<table style=\"width:100%; border-collapse:collapse;\">\n<thead>\n<tr style=\"background:#f8f9fa;\">\n<th style=\"border:1px solid #ddd; padding:12px; text-align:left;\">Symptom<\/th>\n<th style=\"border:1px solid #ddd; padding:12px; text-align:left;\">Cause<\/th>\n<th style=\"border:1px solid #ddd; padding:12px; text-align:left;\">Verification<\/th>\n<th style=\"border:1px solid #ddd; padding:12px; text-align:left;\">Recommendation<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #ddd; padding:12px;\">Rapid battery drain<\/td>\n<td style=\"border:1px solid #ddd; padding:12px;\">Reduced capacity from age\/cycles<\/td>\n<td style=\"border:1px solid #ddd; padding:12px;\">Check battery health in Windows<\/td>\n<td style=\"border:1px solid #ddd; padding:12px;\">Replace if capacity below 60%<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd; padding:12px;\">Laptop shuts down unexpectedly<\/td>\n<td style=\"border:1px solid #ddd; padding:12px;\">Voltage drops under load<\/td>\n<td style=\"border:1px solid #ddd; padding:12px;\">Monitor during intensive tasks<\/td>\n<td style=\"border:1px solid #ddd; padding:12px;\">Immediate replacement needed<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd; padding:12px;\">Battery won&#8217;t charge fully<\/td>\n<td style=\"border:1px solid #ddd; padding:12px;\">Charging circuit or cell failure<\/td>\n<td style=\"border:1px solid #ddd; padding:12px;\">Check charging percentage<\/td>\n<td style=\"border:1px solid #ddd; padding:12px;\">Replace battery<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd; padding:12px;\">Physical swelling\/bulging<\/td>\n<td style=\"border:1px solid #ddd; padding:12px;\">Gas buildup from degradation<\/td>\n<td style=\"border:1px solid #ddd; padding:12px;\">Visual inspection<\/td>\n<td style=\"border:1px solid #ddd; padding:12px;\">Replace immediately &#8211; safety risk<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd; padding:12px;\">Overheating during use<\/td>\n<td style=\"border:1px solid #ddd; padding:12px;\">Internal resistance increase<\/td>\n<td style=\"border:1px solid #ddd; padding:12px;\">Temperature monitoring<\/td>\n<td style=\"border:1px solid #ddd; padding:12px;\">Replace to prevent damage<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h2>How to check compatibility<\/h2>\n<p>Finding your exact ASUS model number is crucial for battery compatibility. For ASUS X456 series laptops, check the bottom casing for a sticker containing your model number. It typically appears as &#8220;X456UA&#8221;, &#8220;X456UB&#8221;, etc. You can also find this information in Windows by pressing Windows Key + R, typing &#8220;msinfo32&#8221;, and looking under System Model. The ASUS support website offers compatibility checking tools where you can enter your serial number or model to verify battery requirements. Always cross-reference with our compatibility table above to ensure you&#8217;re getting the correct C21N1508 replacement.<\/p>\n<h2>When to replace<\/h2>\n<p>Most ASUS laptop batteries last 2-3 years with regular use. Consider replacement when your battery health drops below 70% capacity, you experience sudden shutdowns at 20-30% charge, or the battery shows physical signs of wear. In Australia&#8217;s varying climate conditions, batteries may degrade faster in hotter regions like Queensland compared to cooler areas like Tasmania.<\/p>\n<div style=\"text-align:center; margin:30px 0;\"><a href=\"https:\/\/www.adapter-laptop.com\/battery\/5076-asus-c21n1508-38wh-battery.html\" style=\"display:inline-block;\"><img decoding=\"async\" src=\"https:\/\/www.adapter-laptop.com\/28749-large_default\/asus-c21n1508-38wh-battery.jpg\" alt=\"ASUS C21N1508 38Wh Battery - Genuine Replacement\" style=\"max-width:100%; height:auto; border:1px solid #ddd; border-radius:5px;\"><\/a><\/div>\n<h2>Installation guide<\/h2>\n<p>Replacing your ASUS battery is straightforward with proper preparation. First, power down your laptop completely and disconnect the AC adapter. Flip the laptop over and locate the battery compartment &#8211; most ASUS X456 models have externally accessible batteries. Remove any screws securing the battery cover (typically Phillips #0 or #1). Gently disconnect the battery connector from the motherboard, being careful not to damage the delicate pins. Insert your new C21N1508 battery, ensuring the connector seats firmly. Replace the cover and screws, then charge fully before first use. The entire process takes 10-15 minutes with basic tools.<\/p>\n<h2>Usage &#038; care tips<\/h2>\n<p>To maximise your new ASUS battery&#8217;s lifespan, avoid frequent full discharges &#8211; aim to keep charge between 20-80% for daily use. Store your laptop in cool environments (15-25\u00b0C) and avoid leaving it in hot cars. Calibrate your battery monthly by charging to 100%, then discharging to 5% before recharging. Use genuine ASUS chargers to ensure proper voltage regulation. For Australian users, be mindful that extreme summer temperatures can accelerate battery degradation.<\/p>\n<div style=\"text-align:center; margin:20px 0;\"><a href=\"https:\/\/www.adapter-laptop.com\/battery\/5076-asus-c21n1508-38wh-battery.html\" style=\"display:inline-block; background:#007bff; color:white; padding:15px 30px; text-decoration:none; border-radius:5px; font-weight:bold; font-size:18px;\">Get Your Replacement Battery Now<\/a><\/div>\n<h2>Safety &#038; recycling in AU\/NZ<\/h2>\n<p>Lithium-ion batteries require careful handling. Never puncture, crush, or expose batteries to fire or water. In Australia, dispose of old batteries through authorised recycling centres like Battery World, Officeworks, or council e-waste programs. New Zealand residents can use accredited recyclers through the TechCollect NZ program. Both countries have strict regulations about battery disposal &#8211; never place lithium batteries in household bins due to fire risks at recycling facilities.<\/p>\n<h2>FAQ<\/h2>\n<h3>How long does the C21N1508 38Wh battery last on a single charge?<\/h3>\n<p>Depending on your ASUS model and usage, expect 4-6 hours of typical use. Power-saving modes and reduced screen brightness can extend this to 7+ hours.<\/p>\n<h3>Is this battery compatible with all ASUS X456 models?<\/h3>\n<p>Yes, the C21N1508 is designed for the entire X456 series including X456UA, X456UB, X456UF, X456UJ, X456UQ, X456UR, and X456UVs models.<\/p>\n<h3>How do I know if my battery is genuine ASUS?<\/h3>\n<p>Genuine ASUS batteries feature proper branding, correct model numbering, and come from authorised retailers. Check for authentication stickers and purchase from reputable suppliers.<\/p>\n<h3>Can I replace the battery myself without voiding warranty?<\/h3>\n<p>For most ASUS laptops, user-replaceable batteries don&#8217;t void warranty. However, check your specific warranty terms &#8211; some models may require professional installation.<\/p>\n<h3>What&#8217;s the typical lifespan of this battery?<\/h3>\n<p>With proper care, expect 500-800 charge cycles or 2-3 years of regular use before significant capacity loss occurs.<\/p>\n<h3>Does temperature affect battery performance in AU\/NZ climates?<\/h3>\n<p>Yes, extreme heat accelerates degradation while cold temperatures temporarily reduce capacity. Store and use your laptop in moderate temperatures (15-25\u00b0C) for optimal performance.<\/p>\n<h3>Where can I recycle my old ASUS battery in Australia?<\/h3>\n<p>Most electronics retailers like Officeworks, JB Hi-Fi, and Battery World offer free battery recycling. Many local councils also provide e-waste drop-off services.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>ASUS C21N1508 38Wh Laptop Battery Replacement Guide If your ASUS laptop is struggling to hold a charge or shutting down [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[],"tags":[],"class_list":["post-63225","post","type-post","status-publish","format-standard","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>ASUS C21N1508 38Wh Battery Replacement Guide | Compatible X456 Series Models &amp; 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