3.7V 1250mAh Battery for Logitech Harmony 950,Elite,915-000260 Remote Control | eBay
Amazon.com: Replacement Battery for Harmony 950, 915-000260, Elite, 915-000257, fits Part Number 533-000128, 623158, Remote Control Cameron Sino CS-LOH950RC 3.7V Li-Polymer 1300mAh/4.81Wh : Electronics
How to Replace Battery in Harmony Remote Remote Touch / Ultimate / Elite - YouTube