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
TTVXO 1100mAh for Logitech Harmony Touch Battery Remote Control 533-000083 Battery - AliExpress
Amazon.com: LIONX Battery for 915-000198 Harmony Touch Harmony Ultimate Harmony Ultimate One 1209 533-000083 533-000084 1050mAh / 3.89Wh : Health & Household