Logitech 1250mAh 3.7V Li-Ion Rechargeable Battery For Remote Control Harmony 915 1000 1100 LU18 : Electronics - Amazon.com
foone🏳️⚧️ on Twitter: "but if I pull out the battery and measure it with my multimeter, it says very clearly that it has 3.7volts https://t.co/pTOGvaKC3M" / Twitter
R IG7 190304 2000 for 720 785 880 885 890 Remote Controls Battery 3.7V 930mAh Li Ion Rechargeable Battery|Replacement Batteries| - AliExpress
Logitech Harmony One Battery
Battery: 3390 - NOKIA - CEL-105LI-HC
Digital Energy Logitech Harmony Remote Control Replacement Rechargeable Battery - Walmart.com
Best Buy: Logitech Lithium-Ion Battery for Logitech Harmony HR900 Remotes 993-000405