Bay Valley Parts11.1V 5200mAh Replacement Laptop Battery for Dell Latitude E5400/E5410/Latitude E5500 Series Genuine Dell Li-Ion Rechargable Battery Type: T749D 4 Cell Rechargeable Lithium Ion Battery Capacity: 37WH (Watt-Hour) 14.8v, Type T749D, Dell Part Number U116D Compatible With: Dell Latitude E5400 E5410 E5500 E5510 Systems Compatible Part Numbers: U116D, X064D, T749D, W071D, P858D