DR. BATTERY Professional Series Replacement Notebook Battery: Dr. Battery Professional Series battery is made of quality materials, top grade battery cells to bring your laptop back to life and maintain your laptop service time. Safety First Criteria: All of Dr. Battery Professional Series batteries have short circuit, overheat, and overload protections to maintain the safety of usage. Condition: New Cell Type: Lithium-Ion Device Voltage: 14.4V Capacity: 4400mAh / 63Wh Warranty: 1 Year Compatible Models and Original Battery Part Number: Asus U46, U46E, U46J, U46JC, U46S, U46SD, U46SM, U46SV, U56, U56E, U56J, U56JC, U56S, U56SV, A32-U46, A41-U46, A42-U46 ** In prevent from purchasing incorrect battery, please compare with your original battery & check the Compatibility at [Specs] below.