Logitech Harmony Ultimate universal remote review: A remote that almost has it all - CNET
TTVXO 1100mAh for Logitech Harmony Touch Battery Remote Control 533-000083 Battery - AliExpress
533-000084 Battery for Logitech Harmony Ultimate & Touch Remotes
Remote Control Battery 533-000084, 1209, 533-000083 for LOGITECH 915-000198,Harmony Touch, Harmony Ultimate,Harmony Ultimate One - AliExpress
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