B21N1818-2 C21N1818-2 Laptop Battery Compatible with Asus VivoBook 14 F412DA F412DK F412FJ F412U F412D F412F F412FA F412UA A412DA A412FLA412FJ R424DA R424FA X412DA X412FA X412UA X412UB S14 S412FA

LONG-LASTING BATTERY LIFEWith 7.7V capacity ( 37Wh/ 4850mAh ), the ( B21N1818-2 ) battery ensures all-day power for your laptops in a factory-fresh, never-used battery pack designed for maximum performance.
PERFECT-FIT BATTERY MODELSSupport for B21N1818-2 C21N1818-2
GUARANTEED FIT THESE LAPTOP MODELSCompatible with Asus VivoBook 14 F412 F412D F412DA F412DK F412F F412FA F412FJ F412FL F412U F412UA Series Asus VivoBook 14 A412 A412D A412DA A412DK A412F A412FA A412FL A412FJ A412U A412UA Series Asus VivoBook 14 X412 X412D X412DA X412DK X412F X412FA X412FJ X412FL Series Asus VivoBook 14 X412U X412UA X412UB X412UF X412J X412JA Series Asus VivoBook S14 S412F S412FA S412FJ S412FL S412D S412DA S412DK S412U S412UA Series Asus VivoBook 14 R424D R424DA R424F R424FA Series
SAFE AND RELIABLEOur products have built-in multiple circuit protections to eliminate the risk of overheating/ overcharging, and have been UL certified. No debugging or driver identification is required, and it can be used immediately after installation.
ANGEL SERVICEComes with installation tools, which is an ideal choice for business travelers/students/office workers. Backed by a 12-month worry-free warranty, so you can buy with confidence.