LENMAR RCZ301LO Lenmar Replacement Battery for Logitech Harmony 720 Remote Control Fits: Logitech Harmony 720, 785, 880, 885, 890, One Advanced Remote Control Replaces: Logitech R-IG7, NTA2340, M36B, K43D, F12440023, 190304-2000, 190304-0000 3.7V / 950mAh Lithium Ion 1 Year Warranty