Extended Life Replacement Battery for select Dell Laptops Notebooks / Compatible with Dell 1520, Inspiron 1520, Inspiron 1521, Inspiron 1720, Inspiron 1721, Vostro 1500, Vostro 1700, 312-0504, 312-0513, 312-0518, 312-0520, 312-0575, 312-0576, 312-0577, 312-0589, 312-0590, 312-0594, 312-0595, 451-10476, 451-10477, FK890, FP282, GK479, GK479, GR995, KG479, NR222, NR239, TM980 ( 9 Cells, 7200 Mah ) - Includes Expandable Base Silent Notebook Cooler pad