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 / 48Wh Warranty: 1 Year The battery will protrude out the bottom of the laptop and will cause your laptop to sit at an angle. You may not be able to connect to a docking station with this battery. Compatible Models and Original Battery Part Number:AL14A32, KT.00603.008, Aspire: E5, V3, Extensa: 2509, 2510, TravelMate:P246, P256, P276 ** In prevent from purchasing incorrect battery, please compare with your original battery & check the Compatibility at [Specs] below.