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 is only compatible with the 14.4V or 14.8V version. Compatible Models and Original Battery Part Number: M5Y1K, M5YIK, 07G07, Inspiron 5451, Inspiron N3451, Inspiron 5555, Inspiron 5558, 1KFH3, 451-BBMG, 451-BBOO, 453-BBBR, 6YFVW, 78V9D, 991XP, GXVJ3, HD4J0, HD4JO, K185W, VN3N0 ** In prevent from purchasing incorrect battery, please compare with your original battery & check the Compatibility at [Specs] below.