May be a 'not so smart question'; however, I have always subscribed to turning off main breakers prior to charging. I have seen some videos of folks powering on units (Solix) while charging. I could not find any posts talking about this specifically, but would like a few thoughts on the matter. I have (2) Solix 15s and know that prolonged 'garage time' will draw down to 11V in some cases. I don't know at what voltage issues begin to appear, but would hate to have that happen while downloading software. Thank you for any help!