Battery Model: B31N1912 Voltage: 11.55V Capacity: 42Wh Li-ion polymer Battery Compatible Part Numbers: B31N1912, C31N1912, 0B200-03680000, 0B200-03680200 Replacement for ASUS VivoBook asus 14 E410M E410MA L410M L410MA E410KA F414MA E510MA E510KA L510MA R522MA L410MA L410MA-BV058TS L510MA-WB04 F414MA-EK1890WS E510KA-EJ033TS E410MA-EK007TS EK087T (Please see below detail compatible models) CE-/FCC-/RoHS-Certified for safety.Strict guidelines for compatibility, and standards compliance for product safety and environment safety. 30 Days no-questions-asked full money back and 12 Months Exchange Guarantee. (The return window will be closed a month after you received the the product. CONTACT US, we will make it up and solve it more efficiently).