BATTERY PART NUMBERS - A41-X550 A41-X550A - Battery Type: Li-ion - Battery Voltage: 14.8V also compatible with 14,4v - Full Capacity: 2200mAh - Battery Cell: 4 cells For For Asus: - For Asus A450 Series - For Asus A550 Series - For Asus F450 Series - For Asus F550 Series - For Asus F552 Series - For Asus K450 Series - For Asus K550 Series - For Asus P450 Series - For Asus P550 Series - For Asus R409 Series - For Asus R510 Series - For Asus X450 Series - Asus X550 Series What's in the box 1 X Asus X550, A550, A41-X550A Compatible Laptop Replacement Battery