Kastar Battery AC Wall Charger for Logitech Harmony 785 Harmony 880 880 Pro | eBay
950mAh Li-ion Battery for LOGITECH Harmony 785 – SMAVtronics
Amazon.com: Synergy Digital Remote Control Battery, Compatible with Logitech Harmony One Remote Control, (Li-Ion, 3.7V, 950 mAh) Ultra High Capacity Battery : Electronics
1000mAh High Capacity Replacement R-IG7 NTA2340 Battery for Logitech Harmony 720 785 850 880 885 890 900 & One Advanced Remote Controls 190304-2000 F12440023 - Newegg.com