{"id":13221,"date":"2026-04-20T23:25:51","date_gmt":"2026-04-20T15:25:51","guid":{"rendered":"https:\/\/www.balderpower.com\/?post_type=product&p=13221"},"modified":"2026-04-20T23:25:55","modified_gmt":"2026-04-20T15:25:55","slug":"asus-b31n1631-battery-wholesale","status":"publish","type":"product","link":"https:\/\/www.balderpower.com\/de\/asus-b31n1631-battery-wholesale\/","title":{"rendered":"ASUS B31N1631 Replacement Battery \u2014 42Wh 11.55V 3-Cell for VivoBook 15 X505BA X505BP X505ZA & S505 Series"},"content":{"rendered":"

The B31N1631 is the factory-designated 3-cell battery for ASUS’s mid-range VivoBook consumer line \u2014 the X505, F505, S505, and R504 families \u2014 launched from 2017 onward and still actively deployed in school and SME fleets today. These machines continue to generate strong repair and fleet-refresh demand because they were procured in large volumes at launch and are now hitting their first major battery replacement cycle.<\/p>\n

Our B31N1631 production line maintains dimensional and electrical tolerances within \u00b11% of the original ASUS specification: 11.55V nominal, 42Wh rated capacity, 3727mAh, 3-cell Li-ion polymer architecture. Every pack ships pre-tested at \u226595% of rated capacity.<\/p>\n

Compatible Models & Part Numbers<\/strong><\/p>\n

Verified compatible OEM part numbers: B31N1631 \/ 0B200-02510000 \/ 0B200-02510200 \/ 0B200-02510500 \/ 3ICP5\/57\/81 \/ B31BI2H \/ B31BI9H<\/strong><\/p>\n

Compatible laptop series (verified against ASUS service documentation):<\/p>\n

\n
\n\n\n\n\n\n\n\n\n\n\n\n\n
Serie<\/th>\nKey Models<\/th>\n<\/tr>\n<\/thead>\n
VivoBook 15 X505BA<\/td>\nX505BA-1A\/1B\/1C\/3F\/3G, X505BA-RB94, X505BA-BR016T<\/td>\n<\/tr>\n
VivoBook 15 X505BP<\/td>\nX505BP-1A\/1B\/1C\/3F\/3G, X505BP-BR007T<\/td>\n<\/tr>\n
VivoBook 15 X505ZA<\/td>\nX505ZA-BB31, X505ZA-BQ013T, X505ZA-AS2502T, X505ZA-BG879T<\/td>\n<\/tr>\n
VivoBook 15 F505BA\/BP\/ZA<\/td>\nF505BA-BR036T~BR038T, F505BP-EJ156T, F505ZA-BQ072T<\/td>\n<\/tr>\n
VivoBook S505<\/td>\nS505BA-BR033T, S505BP-BR013T, S505ZA-EJ484T, S505ZA-BR225T<\/td>\n<\/tr>\n
VivoBook S14 S410UN<\/td>\nS410UN-EB065T, S410UN-NS74, S410UN-EB143T<\/td>\n<\/tr>\n
VivoBook 17 X705MA<\/td>\nX705MA-BX124T, X705MA-BX162\/163, X705MA-BX171T\/179T\/186T<\/td>\n<\/tr>\n
R504 \/ A505<\/td>\nR504BA, R504ZA-BQ064T\/135T, A505BA, A505BP, A505ZA<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"
    \n
  • \n

    \ud83d\udd0b Direct OEM replacement<\/strong> for ASUS B31N1631 \u2014 engineered to match factory voltage, capacity, and connector spec without modification<\/p>\n<\/li>\n

  • \n

    \ud83d\udce6 Broad model coverage<\/strong>: fits VivoBook 15 X505BA, X505BP, X505ZA, F505BA, S505BA, S505ZA series and 40+ sub-models<\/p>\n<\/li>\n

  • \n

    \u26a1 11.55V \/ 42Wh \/ 3727mAh<\/strong>, 3-cell Li-ion \u2014 true-rated capacity, no inflated figures<\/p>\n<\/li>\n

  • \n

    \ud83c\udfed Factory-direct B2B supply<\/strong>: tiered wholesale pricing, mixed-SKU orders accepted, consistent batch quality<\/p>\n<\/li>\n

  • \n

    \ud83d\udccb P\/N coverage<\/strong>: B31N1631, 0B200-02510000, 0B200-02510200, 0B200-02510500, 3ICP5\/57\/81<\/p>\n<\/li>\n<\/ul>","protected":false},"featured_media":13222,"template":"","meta":{"_acf_changed":false,"nf_dc_page":"","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":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"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":""},"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-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":"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":""},"mobile":{"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":""}},"_joinchat":[]},"product_brand":[],"product_cat":[512],"product_tag":[1734,1529,1732,1735,1733],"class_list":{"0":"post-13221","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-asus-laptop-battery-wholesale","7":"product_tag-3-cell-li-ion-battery-supplier","8":"product_tag-42wh-laptop-battery-wholesale","9":"product_tag-asus-b31n1631-battery","10":"product_tag-laptop-battery-factory-direct","11":"product_tag-vivobook-15-replacement-battery","12":"desktop-align-left","13":"tablet-align-left","14":"mobile-align-left","15":"ast-product-gallery-layout-horizontal-slider","16":"ast-product-tabs-layout-horizontal","18":"first","19":"instock","20":"shipping-taxable","21":"purchasable","22":"product-type-simple"},"acf":[],"_links":{"self":[{"href":"https:\/\/www.balderpower.com\/de\/wp-json\/wp\/v2\/product\/13221","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.balderpower.com\/de\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.balderpower.com\/de\/wp-json\/wp\/v2\/types\/product"}],"version-history":[{"count":1,"href":"https:\/\/www.balderpower.com\/de\/wp-json\/wp\/v2\/product\/13221\/revisions"}],"predecessor-version":[{"id":13232,"href":"https:\/\/www.balderpower.com\/de\/wp-json\/wp\/v2\/product\/13221\/revisions\/13232"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.balderpower.com\/de\/wp-json\/wp\/v2\/media\/13222"}],"wp:attachment":[{"href":"https:\/\/www.balderpower.com\/de\/wp-json\/wp\/v2\/media?parent=13221"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.balderpower.com\/de\/wp-json\/wp\/v2\/product_brand?post=13221"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.balderpower.com\/de\/wp-json\/wp\/v2\/product_cat?post=13221"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.balderpower.com\/de\/wp-json\/wp\/v2\/product_tag?post=13221"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}