Dell Latitude E5400 Battery

Key Features: Battery Type: Lithium-Ion (Li-ion) Voltage: 11.1V Capacity: 4400mAh to 6600mAh (depending on version) Watt-hour (Wh): 48Wh to 73Wh Number of Cells: 6-cell or 9-cell options Color: Black Average Runtime: 2.5 to 6 hours Recharge Cycles: Up to 500 Compatibility: Specifically designed for the Dell Latitude E5400