{"product_id":"fancy-buying-b31n1912-laptop-battery-for-asus-vivobook","title":"Fancy Buying B31N1912 Laptop Battery for ASUS VivoBook","description":"\u003cp\u003e\u003cstrong\u003eCompact 3‑cell polymer replacement battery built to restore runtime for many ASUS VivoBook 14 and 15.6\" laptops.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your ASUS VivoBook is powering down early or showing battery errors, the Fancy Buying B31N1912 (also labeled C31N1912) offers a direct-fit replacement. It delivers 11.55 volts and 42Wh capacity in a slim black pack that matches the original battery's shape and connector layout. The kit includes the battery, a simple installation tool, and a user manual so you can swap it without specialist equipment.\u003c\/p\u003e\n\n\u003ch3\u003eWhich ASUS models will this battery work with?\u003c\/h3\u003e\n\u003cp\u003eThis battery is designed for a wide range of VivoBook 14 and 15 models, including E410, L410, F414, E510, L510, R522 and compatible sub‑series. Check the replacement part numbers and your laptop's model label before ordering to ensure compatibility. It replaces OEM part numbers such as B31N1912 and C31N1912 and several vendor SKUs listed below.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReplacement part numbers: B31N1912, C31N1912, 0B200-03680000, 0B200-03680100, 0B200-03680200\u003c\/li\u003e\n  \u003cli\u003eFits series: VivoBook 14 E410 \/ E410MA, L410 \/ L410MA, F414 \/ F414MA, VivoBook E510 \/ L510 \/ R522MA\u003c\/li\u003e\n  \u003cli\u003eCompatible OEM SKUs: L510MA-WB04(DF112), L410MA-BV058TS, E410MA-EK017TS, E510KA-EJ033TS\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow long will this battery last and what are the specs?\u003c\/h3\u003e\n\u003cp\u003eThe B31N1912 is a polymer (Li‑Po) pack rated 11.55V and 42Wh, formed from three cells. Actual runtime depends on your laptop configuration and usage — lighter tasks yield longer battery life than heavy multitasking or gaming. The pack is built to the same voltage and connector pattern as the original, so performance mirrors the OEM battery under comparable conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eType: Lithium polymer (Li‑Po); Voltage: 11.55V; Capacity: 42Wh\u003c\/li\u003e\n  \u003cli\u003eCells: 3‑cell construction for compact fit and balanced weight\u003c\/li\u003e\n  \u003cli\u003ePackage includes: 1× B31N1912 battery, auxiliary installation tool, user manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs installation difficult and what safety steps should I follow?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward for users comfortable opening a small laptop compartment; the included tool and manual guide the process. Always power down, unplug, and ground yourself to avoid static damage before starting. If you are unsure, seek a technician to avoid damaging connectors or voiding any remaining warranty.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePower off and disconnect AC adapter before removing the old battery\u003c\/li\u003e\n  \u003cli\u003eUse the provided tool and follow the step‑by‑step manual to avoid connector strain\u003c\/li\u003e\n  \u003cli\u003eDispose of the old battery at a local battery recycling facility\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat warranty and return options come with this battery?\u003c\/h3\u003e\n\u003cp\u003eFancy Buying backs this battery with a 60‑day return window and a 12‑month replacement policy. If you encounter compatibility issues or defects, contact the seller via the store's \"ask a question\" link promptly — returns close one month after delivery per the stated policy. Keep order details and photos of the installation if you file a claim.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReturn window: 60 days for returns; note the seller's one‑month closure condition after receipt\u003c\/li\u003e\n  \u003cli\u003eReplacement warranty: 12 months from purchase for defects and failures\u003c\/li\u003e\n  \u003cli\u003eHow to get support: contact Fancy Buying via the store \"ask a question\" link\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The Fancy Buying B31N1912 battery is aimed at VivoBook owners whose original battery no longer holds adequate charge or who need a cost‑effective OEM‑compatible replacement. It's ideal for students, remote workers, and light‑to‑moderate users who want a straightforward swap with clear instructions and a one‑year replacement safety net.\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: Will this battery work in my ASUS VivoBook E410MA?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the B31N1912\/C31N1912 is listed compatible with many E410MA variants; verify your laptop’s exact model or OEM part number first.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What warranty does Fancy Buying provide?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The battery includes a 60‑day return window and a 12‑month replacement warranty; contact the seller via the store \"ask a question\" link.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Fancy Buying","offers":[{"title":"Default Title","offer_id":48413297115293,"sku":"B0FF1GWYB8","price":39.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/9596\/1757\/files\/fancybuying-b31n1912-front-packaging.jpg?v=1781259927","url":"https:\/\/nexoltic.com\/products\/fancy-buying-b31n1912-laptop-battery-for-asus-vivobook","provider":"Nexoltic","version":"1.0","type":"link"}