Lenmar Replacement Battery for HP Compaq Business Notebook NC6120, NC6220, NC6400 Laptop Computers 10.8V / 4400mAh Lithium Ion fits HP Compaq Business Notebook NC6120, NC6220, NC6400, NX6310, NX6325, 6510B, 6710B, 6715B, 6910P; Replaces: HP Compaq 365750-004, 383220-001, PB994A, 360483-004, 364602-001, 365750-004, 372772-001, 383220-001, HSTNN-IB05.