Like nkurz said, the battery management circuitry will usually disconnect the battery before it discharges enough to damage the electrolyte. Granted, this depen

Like nkurz said, the battery management circuitry will usually disconnect the battery before it discharges enough to damage the electrolyte. Granted, this depends on the circuitry in question (i.e. your $0.05 battery controller chip from Shenzen may not do this), but I would hope that Tesla is actually investing in proper battery management circuitry.