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 HP Pavilion has several series and they use different batteries. Please check your laptop model and battery number before placing an order. Compatible Models and Original Battery Part Number: Pavilion 14, 15, 17, K104, KIO4, 800009-121, 800009-141, 800009-221, 800009-241, 800009-251, 800009-421, 800009-541, 800010-421, 800049-001 ** In prevent from purchasing incorrect battery, please compare with your original battery & check the Compatibility at [Specs] below.