Amazon.com: Synergy Digital Remote Control Battery,Compatible with Logitech Harmony Touch Remote Control, (li-ion, 3.7V, 1100 mAh) Ultra High Capacity Battery : Health & Household
Amazon.com: CS Cameron Sino 3.7V 1050mAh Replacement Remote Control Battery for Logitech 915-000198, Harmony Touch, Harmony Ultimate, Harmony Ultimate One, Part No. 533-000083, 533-000084 : Health & Household