High Performance Lithium Ion Main Battery Pack for Compaq Presario Notebook CQ40-609TU OEM Part # equivalent: 462889-121, 462889-122, 462889-141, 462889-142, 462889-261, 462889-421, 462889-541, 462889-721m 462889-741, 462889-761, 462890-121, 462890-141, 462890-142, 462890-151, 462890-161, 462890-241, 462890-251, 462890-421, 462890-541, 462890-721, 462890-741, 485041-001, 484170-001, B-5326, HP-DV4 |