{"product_id":"b31n1911-c31n1911-battery-replacement-for-asus-vivobook","title":"B31N1911 C31N1911 Battery Replacement for ASUS VivoBook","description":"\u003cstrong\u003eReplacement lithium-polymer battery B31N1911\/C31N1911 for a range of ASUS VivoBook 14 and 13 models, 11.55V 42Wh, includes one screwdriver for installation.\u003c\/strong\u003e\n\n\u003cp\u003eThis Fancy Buying battery is a drop-in power module designed to replace worn or failing batteries in many ASUS VivoBook notebooks. Engineered as a 3-cell lithium-polymer pack rated at 11.55 volts and 42 watt-hours, it restores run time while maintaining a compact, OEM-friendly profile. The package ships in black and includes a single screwdriver to make swap-outs faster for DIY repairs.\u003c\/p\u003e\n\n\u003ch3\u003eWhich ASUS models will this B31N1911 battery work with?\u003c\/h3\u003e\n\u003cp\u003eThe B31N1911 \/ C31N1911 is cross-compatible with numerous VivoBook and Flip series laptops. It covers multiple part numbers and model families used on 13- and 14-inch ASUS notebooks, so it’s suitable if your system lists those replacement ids.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible replacement numbers: B31N1911, C31N1911 and several OEM codes referenced by ASUS.\u003c\/li\u003e\n  \u003cli\u003eFits many VivoBook Flip 14 and VivoBook 14\/13 series — check your laptop’s service label for matching part numbers.\u003c\/li\u003e\n  \u003cli\u003eWorks with both standard VivoBook and convertible (Flip) chassis from recent model lines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does its performance compare to the original battery?\u003c\/h3\u003e\n\u003cp\u003eThis battery matches the original specification for voltage and capacity, providing comparable runtime when healthy. It uses a lithium-polymer chemistry and includes built-in circuit protection to protect against common electrical faults.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eVoltage: 11.55V — identical to many factory packs.\u003c\/li\u003e\n  \u003cli\u003eCapacity: 42Wh — restores the original estimated battery life for compatible machines.\u003c\/li\u003e\n  \u003cli\u003eSafety: internal protection circuitry plus CE and FCC compliance for electrical safety.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I know before installing the replacement pack?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward for users comfortable opening a laptop — the kit even includes a screwdriver for convenience. Always power down, disconnect from AC, and follow anti-static precautions; verify connector orientation before seating the new pack.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncluded tool: one screwdriver provided to remove the back cover screws.\u003c\/li\u003e\n  \u003cli\u003ePrecautions: disconnect power and discharge static, back up data before service.\u003c\/li\u003e\n  \u003cli\u003eCompatibility check: confirm part number on your existing battery or service sticker matches the replacement list.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat safety and quality steps does Fancy Buying follow?\u003c\/h3\u003e\n\u003cp\u003eFancy Buying supplies batteries that meet common international safety marks and include protective circuitry to reduce the risk of overcurrent, shorting, or thermal issues. While certified for safety, always use a compatible charger and replace cells only with the correct model to preserve system stability.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCertifications: CE and FCC compliance for regulatory safety standards.\u003c\/li\u003e\n  \u003cli\u003eProtection: built-in circuit protection for reliable operation.\u003c\/li\u003e\n  \u003cli\u003eQuality controls: tested for correct voltage, capacity, and connector fit before shipping.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? If your ASUS VivoBook 13\/14 or Flip 14 notebook shows diminished battery life, won’t hold a charge, or reports battery errors, this B31N1911\/C31N1911 replacement from Fancy Buying is a practical, cost-effective fix. It suits DIY repairers, IT technicians refreshing laptop fleets, and anyone seeking an OEM-spec capacity swap without replacing the whole device. Always double-check the part number printed on your current battery or laptop service label to ensure an exact match before ordering.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this battery an exact fit for my ASUS VivoBook?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Check that your laptop’s service sticker or old battery lists B31N1911, C31N1911, or a matching OEM code before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the package include tools for installation?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — one screwdriver is included to help remove the back cover and secure the replacement battery.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Fancy Buying","offers":[{"title":"Default Title","offer_id":48413654974621,"sku":"B0FF1MW3VW","price":61.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/9596\/1757\/files\/fancy-buying-b31n1911-front-view.jpg?v=1781276364","url":"https:\/\/nexoltic.com\/products\/b31n1911-c31n1911-battery-replacement-for-asus-vivobook","provider":"Nexoltic","version":"1.0","type":"link"}