2-Pack Logitech L-LU18 Battery with Universal Charger (100/240V) Replacement - Compatible With Logitech Harmony 1100, Harmony 1000, Harmony 915, L-LU18, F12440056, Squeezebox Duet Controller Replacement Logitech L-LU18 Battery and Charger for Logitech Harmony 1100, Harmony 1000, Harmony 915, L-LU18, F12440056, Squeezebox Duet Controller, Harmony 1100i, 190582-0001, K398 Universal Charger features adjustable slider to charge different lithium-ion batteries (3.6V/3.7V). 100-240V autosensing for world wide use. Lifetime Warranty Logitech L-LU18 Battery Specs - Capacity: 1250mAh, Voltage: 3.7V, Upstart Battery Brand On Sale for a Limited Time!