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: 2200mAh / 32Wh Warranty: 1 Year This battery is NOT compatible with A41-X550E. Compatible Models and Original Battery Part Number: A41-X550A A41-X550 F550 F450 X550 R510C A550 K550 P550 X550C X450 A550L X550J R510 ** In prevent from purchasing incorrect battery, please compare with your original battery & check the Compatibility at [Specs] below.