New ProductsModel: B31N1912 Voltage: 11.55V Capacity:42Wh/3550mAh Cells: 3-cell Battery type: Li-ion. (We only use grade A battery cells that provide up to 500 recharge cycles over the life of the battery.Come with screwdrivers.) Compatible Part NumberFit for B31N1912 / C31N1912 / 0B200-03680000 / 0B200-03680100 Replacement For LaptopFor Asus VivoBook 14 E410 E410MA E410MA-EK007TS E410MA-EK017TS E410MA-EK026TS E410KA E410KA-EK139TS For Asus VivoBook 14 L410 L410MA L410MA-BV037TS L410MA-BV053TS L410MA-BV058TS For Asus VivoBook 14 F414 F414MA For Asus VivoBook E510 E510MA E510KA E510KA-EJ033TS For Asus VivoBook L510 L510MA Series TipsAll ASUNCELL products are certified by CE / FCC / RoHS for safety. Were so confident in the performance of our replacement laptop batteries, strict guidelines for compatibility, strict quality control standards and standards compliance. (including short circuit, overheat, and overload protections) Customer First24 x 7 email support. We