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: 14.4V Capacity: 4400mAh / 63Wh Warranty: 1 Year This battey is not for laptops: ZBook 17 G3, ZBook 17 G4, ZBook 17 G5, ZBook 15 G3, ZBook 15 G4. Compatible Models and Original Battery Part Number: HP ZBook 15 G1, 15 G2, 17 G1, 17 G2, AR08, 708456-001, 708456-001, 708455-001 ** In prevent from purchasing incorrect battery, please compare with your original battery & check the Compatibility at [Specs] below.