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: 10.8V Capacity: 4400mAh / 48Wh Warranty: 1 Year Compatible Models and Original Battery Part Number: 07G016H31875, 07G016HG1875, 07G016HK1875, 07G016JD1875, A31-K53, A32-K53, A41-K53, A42-K53, A43, A43B, A43BR, A43BY, A43C, A43E, A43E-VX038D ** In prevent from purchasing incorrect battery, please compare with your original battery & check the Compatibility at [Specs] below.