Bay Valley Parts 8-Cell 14.8V 5200mAh New Replacement Laptop Battery for ASUS: 90-NWT3B3000Y,A31-UL30,A31-UL50,A31-UL80,A32-UL30,A32-UL50,A32-UL80,A41-UL30,A41-UL50,A41-UL80,A42-UL30,A42-UL50,A42-UL80