Logitech Harmony One Swollen Battery Removal - YouTube
Replacement for Logitech Harmony One Advanced Battery - Replacement for Logitech Universal Remote R-IG7 Battery (950mAh, 3.7V, Lithium-Ion) : Amazon.ca: Electronics
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
Battery for Logitech Harmony One 720 780 785 880 885 890 895 900 R-IG7 Remote | eBay