U0521 Dell 9T255, 0U003, Latitude D400 Li-ion 6-Cell Laptop/Notebook Battery Dell Part Numbers: W0628, X0362, X0363, Y0175, 6T087, 6T216, 7T093, 8T016, 8T533, 9T119, 9T540, 9T543 Dell Model Number; 312-0078, 312-0095, 312-009, 451-10142, 312-0078 Battery Type: Li-ion Rating: 11.1V 3800mAH Capacity: 42WH 6-Cell Type: 9T119 This is a Genuine Dell Product NOT GENERIC