| Teslas have a number of features designed to prevent this situation from happening. Below a threshold, the car's power will reduce as battery capacity decreases. The car will also warn you several times with a modal over the entire display telling you that you're approaching zero capacity. If you're following a route on the navigation system, it will show you a banner just above the turn by turn instructions indicating whether you need to charge or drive below a set average speed in order to reach the destination. Additionally, there is a small reserve within the battery that allows you to stretch your remaining capacity just a bit. The issue here (and I blame Tesla more than the driver) is that showing remaining battery capacity in miles is horrifically inaccurate, just like it is with petrol-fueled vehicles. Percent state of charge is always the most accurate measure to go on, just like it is on phones. I also wish Tesla would allow drivers to disable percent remaining until a threshold is reached (like 20%) to reduce capacity anxiety. |