This 6-cell 5200mAh li-ion laptop replacement battery is compatible with Dell Inspiron 13R, 14R, 15R, 17R, M4040, M4110, M501, M5010, M501D, M5030, M5040, M5110, N3010, N3110, N4010,
N4050, N4120, N5010, N5030, N5040, N5040, N5050, N7010, Vostro 1440, Vostro 1450, Vostro 1540, Vostro 1550, Vostro 2420, Vostro 2520, Vostro 3450, Vostro 3550, Vostro 3555, Vostro 3750.