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: 11.1V Capacity: 4400mAh / 49Wh Warranty: 1 Year This battery only compatible with 10.8V and 11.1V version. Compatible Models and Original Battery Part Number: Dell Inspiron: 14 1440, 15 1525, 15 1526, 15 1545, 1525, 1526, 1545, 1546, 17 (1750), PP29L, Dell Vostro 500, GW240, X284G, 0C139H, 0P505M, XR694 ** In prevent from purchasing incorrect battery, please compare with your original battery & check the Compatibility at [Specs] below.