This is a Brand New Lithium Ion Battery for HP Compaq. Compatible Compaq Models: Business NoteBook NC: NC6100, NC6105, NC6110, NC6115, NC6120, NC6200, NC6220, NC6230, NC6400. Business NoteBook NX: NX6100, NX6105, NX6110, NX6115, NX6120, NX6125, NX6130, NX6140, NX6300, NX6310, NX6315, NX6320, NX6332. Replaces part #s: HSTNN-FB18, HSTNN-I03C, HSTNN-I05C, HSTNN-IB05, HSTNN-IB16, HSTNN-IB18...