Amazon.com: Synergy Digital Remote Control Battery, Works with Logitech Harmony 900 Pro Remote Control, (Li-Ion, 3.7V, 950 mAh) Ultra High Capacity Battery : Electronics
R-ig7 Battery Dvisi 950mah Rechargeable Lithium Ion Bateria For Loh880 Logitech Harmony One 900 720 850 880 885 890 Pro H880 - Digital Batteries - AliExpress