So I have an interesting question. I know that the Roadster can charge with different maximum amp cables (15, 20, 40, 50, 70) but how is the maximum amperage that the battery can draw affected by the current state of charge. I know it isn't flat, but is it flat within a specific range (10%-90%)? I have been wondering this for awhile now. Does anyone know where this sort of information can be found?