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 / 32Wh Warranty: 1 Year This battery only compatible with 14.4V and 14.8V version. Compatible Models and Original Battery Part Number: XCMRD 0MF69 24DRM 312-1387 312-1390 312-1392 312-1433 451-12097 Dell Inspiron 14 15 17 Dell Latitude 15 3440 3540 Dell Vostro 3446 3449 3546 3549 ** In prevent from purchasing incorrect battery, please compare with your original battery & check the Compatibility at [Specs] below.