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 Compatible Models and Original Battery Part Number: Dell XPS: 14, 15, 17, 17 3D, L401x, L501x, L502x, L701x, L701x 3D, L702x, 312-1127, J70W7, P11F, P12G, WHXY3, R795X ** In prevent from purchasing incorrect battery, please compare with your original battery & check the Compatibility at [Specs] below.