Voltage 11.1V, Capacity 7800mAh/87Wh, Number of Cells/type 9 Colour Black Compatible part number/s Dell 0FVWT4, 312-1177, 451-11742, 97KRM, KJ321, X57F1, 0TN1K5, 312-1176, 312-1178, 3DJH7, 451-11743, 451-11744, 9GP08, FV993, PG6RC, R7PND, N71FM, 451-11659, JHYP2, FJJ4W Model numbers Precision M6700, Precision M4700, Precision M4800, Precision M6600, Precision M4600, Precision M6800 Package 1 x Replacement Battery for Dell Precision M4600 M4700 M6600