This is a Travel Battery for your HP Compaq. Compaq Compatible Models: Business Notebook NC: NC4200, NC4400, NC6200, NC6300, NC 400, NC8200, NC8230, NC8430 Business Notebook NW: NW8240, NW8440. Business Notebook NX6000: NX6100, NX6110, NX6115, NX6120, NX6125, NX6130, Business Notebook NX6300: NX6310, NX6315, NX6320, NX6325, NX6330. Business Notebook NX: NX7300, NX7400, NX8220, NX8420, NX9420...