Battery2go - 1 year warranty - 3.7V Battery For Logitech Squeezebox Duet Controler, Harmony 1000 Remote, L-LU18, F12440056 Capacity: 1300mAh / 4.81Wh Type: Li-ion Volts: 3.7V Size : 54.81 x 35.53 x 6.98mm Certificated with ISO9001, RoHS & CE;