FLYREE 6Cells New Battery for Latitude E6400 E6410 E6500 E6510 Precision M2400 M4400 M4500 M6500 - 1 Year Warranty High performance in great quality as the original, Grade A cells ensure fast charges and low power consumption; Built-in circuit protection ensures both safety and stability Battery Type: Li- ion Voltage: 11.1V Capacity: 56Wh Cells: 6-Cell Color:Silver Grey Compatible P/N:KY266, KY470, KY471, KY477, NM631, MP492, MP494 Compatible Models: Latitude E6400 battery, Latitude E6500 battery, Latitude E6510 battery, Latitude E6410 battery Fast shipping from US, 24 x 7 Email Support, 1 year warranty,30 days money return guarantee