I tested my TransScale Custom this morning and found the current to vary between 1.5uA-190uA… the highest current coinciding with a powerful strum on all strings. This current draw from the battery is not effected by any of the control settings. From the limited schematics I found, I’d say all the active devices are always powered and the only way to conserve power is to pull the audio plug when not using the guitar… however, that won’t be saving much. The battery lead on my guitar was also short but I was able to pull another ½-1” after removing the battery box. I had no problem changing batteries, even with my sore finger tips.