At nearly 60k KMs, and having run close a few times (eg Melb to Adelaide before there were any superchargers past Ballarat), I am wondering how much permanent range degradation occurs when the battery gets below 20kms/5%, let alone if it gets to full shutdown mode (and full commiserations to anyone in that situation - we've all had surprises with sudden range drops and times when charging isn't possible despite plans).
I noticed a sudden 5km reduction in 80% charged range after towing a trailer on a long trip and arriving with 4% to spare (I use both typical range and %. Typical range is usually v accurate unless towing or at a ski resort for a few days where the cold and limited regen on the way down can mess your expectations).
You expect to lose a percent or maybe a bit more in range each year as the batteries get older and more cycled, but does running really low (ie below 5%) accelerate that process a lot? I'd assumed so, but interested if that is in fact what others have experienced?