Question: I have read your FAQ regarding the Ditto X2 and its battery usage while connected with a power supply, but my X2 is draining the battery. Is my pedal defective  Answer:  There is a sensor in the power supply jack. If the power supply you are using does not fit the jack properly, the sensor will not trip and this will cause your battery to be drained.  Please make sure you are using a barrel that is 2.1mm to ensure a correct fit.