Hello friends, sorry for my bad English, use google Traslate, wanted to know if the battery loaded inside the guitar is consumed by more than this off without using that guitar because the charge to 100%, leave it on guitar and the other day I noticed that the green lights are less, as if he were consumed by more that do not use the guitar, this is correct? or I have to turn something I'm forgetting? because I turn the shift knob Variax guitar and unplug the cable.