Realistically, for those that actually run a pure EV, what do you run the mileage range down to before you start to panic? Personally I am looking to refill my car with petrol when it gets down to 75 miles left in the tank, if I get caught in slow traffic etc the range remaining drops a lot and I then start to get a bit panicky!!! If an EV's TOWING range is (for sake of arguments) 150 miles, the driver is unlikely to do 145 miles before looking to recaharge.
Just curious as to what sort of mileage those that tow with an EV do before the panic sets in?
So two things here. For normal every day use, I don't "run it down" in the same way that you are used to for petrol/diesel cars. When I get home, if I need to, I plug it in and it recharges over night while I sleep. For the vast majority of the time, it sits at somewhere between 50% and 90%. Then it's ready to go for 200 miles the next day. Rinse and repeat.
But - on a long journey (where I will always leave home with a 100% full battery and pre-conditioned car for comfort), my guide is not how much electricity is left, so much as how much comfort I have left in me for driving. When I pull over to stop, I also charge. That tends to be somewhere between 2 and 2.5 hours of driving time, which equates to between 100 and 170 miles of distance (traffic dependant) and might leave me with between 50% and 20% of battery left. The exact location I choose to stop at will be governed by a combination of number of free chargers (which I can see on the dash), cost of those chargers (some are vastly cheaper for me to use than others), and how long I feel I can hold it
But again - its a mindset thing - for a journey beyond by battery range, I am not planning where to go 5 miles before I run out, I am planning the moment I put the destination in the nav at the beginning (because it will tell me repeatedly "you cant get to your destination with this charge level - would you like to plan to charge") and probably the day (or days or a week) before.
But - unlike with all my previous fuel cars where remaining range readout basically dropped to "unknown" below about 35 miles, my EV (and they vary in this capability) will show me how much battery I will have left incredibly accurately at my navigation destination, to within about 2 miles. I am more than happy to plan for my next charge to be as low as 2% (4 miles range) if I am heading home (where I am guaranteed to charge) or - to a public charging location - about 5% to 10% solo, and about 8%-12% towing.
Other than the towing case (where I am far more interested in being able to park the caravan while I charge), the main consideration is bladder capacity.
EDIT - One other HUGE difference between ICE and EV. When you are caught in traffic either a slow jam, or stop start, your range goes up. ICE are very inefficient at low speeds, especially start-stop. EV are MOST efficient at low speeds and start stop is a bit of a wash with regen braking (which is why hybrids work well in town).