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: 14.8V Capacity: 2200mAh / 33Wh Warranty: 1 Year This battery only compatible with 14.4V and 14.8V version. The battery will protrude out the (bottom/side) of the laptop and will cause your laptop to sit at an angle. You may not be able to connect to a docking station with the extended battery. Compatible Models and Original Battery Part Number: AK.004BT.098, AL12A31, AL12B31, AL12B32, AL12B72, AL12X32, KT.00403.004, KT.00407.002