Outecc Replacement ASUS Laptop Battery [4cells 2200mAh 14.8V Black] A31N1319 A41N1308 0B110-00250100M X45LI9C YU12008-13007D.Fits Models: X551CA-0051A2117U A41 Capacity:14.4V / 14.8V 2200mah Fit Part number:ASUS : A31N1319 A41N1308 0B110-00250100M X45LI9C YU12008-13007D? US ship New Generic, 1 year warranty Any problem, please feel free to contact us, we must response in 24 hours.