Compatible Models: Dell Latitude E5400, Dell Latitude E5410, Dell Latitude E5500, Dell Latitude E5510 Compatible part numbers: 312-0762, 312-0769, 451-10616, KM668, KM742, KM752, KM760, KM970, MT186, MT187, MT193, MT196, MT332, P858D, PW640, PW649, PW651, RM649, RM656, RM661, RM668, T749D, U116D, W071D, WU841, WU843, WU852, X064D Specifications: - Battery type: Li-ion - Voltage: 11.1 - Capacity: 4400 mAH - Brand: Unbranded /OEM - Compatible Models What's in the box Laptop Battery