Battery Logitech Harmony One Remote | Harmony Remote Control Battery - Control - Aliexpress
R-IG7 Battery for Logitech Harmony 900 880 890 720 885 Pro Universal Remote 190304-2000 F12440023 - Walmart.com
1pc 950mAh R IG7 Camera Battery + Wall Charger for Logitech Harmony LOH880 720 900 850 880 885 890 Pro H880 Universal Remote|Digital Batteries| - AliExpress
Amazon.com: Replacement for Logitech Harmony 900 Battery - Compatible with Logitech Universal Remote R-IG7 Battery (950mAh 3.7V Lithium-Ion) : Electronics
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