950mAh Li-ion Battery for Logitech Harmony 900, 190304-0004 – SMAVtronics
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
Kastar 3-Pack Battery and AC Wall Charger Replacement for Logitech Remote R-IG7 RIG7 R1G7 Harmony 895 Harmony 900 Harmony 900 Pro Harmony 900 Remote MONSTER AV100 MONSTER AVL300 MONSTER AVL300S - Walmart.com
Kastar 1-Pack Battery and LTD2 USB Charger Compatible with Logitech Harmony 895 Harmony 900 Harmony 900 Pro Harmony 900 Remote Harmony One Advanced MONSTER AV100 MONSTER AVL300 MONSTER AVL300S - Walmart.com
Battery Logitech Harmony One Remote | Harmony Remote Control Battery - Control - Aliexpress
Amazon.com: Youejoeq (2-Pack) logitech r-ig7 Battery Replacement for logitech Harmony one 900 850 880 885 890 Pro H880,fit Part no R-IG7 190304-0000 f12440023 : Electronics