DR. BATTERY A32-X401 Battery Compatible with Asus X501A X401 X401A X501 X401U X3Professional Series Replacement Notebook Battery: Dr. Battery Professional Series batteries are made of quality materials, top grade battery cells to bring your laptop back to life and maintain your laptop???s service time. Accurate Capacity: Every single Dr. Battery replacement notebook batteries passed our quality control index to meet OEM specifications. The 6 cells Li-on battery is rated at 4400mAh. Safety First Criteria: All of Dr. Battery Professional Series batteries have short circuit, overheat, and overload protections to maintain the safety of usage. 12 Months Warranty: Dr. Battery offers 12 Months Warranty. If you have any questions about the product, please feel free to contact. We will help you to resolve the issue. Compatible Models and Original Battery Part Number: DVA31-X401, DVA32-X401, DVA41-X401, DVA42-X401, X401 Series, X301U Series, X501 Series, X401U Series