what happens if you get somewhere without enough range to get it to a charger?
Flatbed. I don't know how often it happens, but I don't read about it much (but that said, even with a one gallon can in the boot, I never ran out of petrol - except one time when the gauge was faulty ...)
its quite hard to do. If you set a SatNav destination then "Energy : Trip" shows you a graph of predicted consumption to destination (with arrival Percentage), and as you drive it adds an Actual line and updates the Arrival Prediction. Easy enough to slow down, or draft a big truck (even at a safe distance that helps, and removed the temptation to speed up
) if the graph turns ugly (but you would have to be hammering it, or in diabolical weather for that to happen)
a public charger that is out of order
That's more of a problem. Never heard of a Supercharger being "bust" - occasionally a stall running slow, and even more occasionally a stall that is bust, but not the whole shebang. Could happen of course ... If there is a powercut in that vicinity the petrol pumps won't be working either ...
I plan longer journeys with
A Better Route Planner to figure where I will stop, and how much charge I need. Car SatNav doesn't do waypoints (other than to provide a return percentage if you are specifically doing an out-and-back). so I find that knowing how much charge I need at a Supercharger to then "
go up the motorway a bit, turn off into the countryside, and then return back to same Supercharger" is important (assuming no charging at destination)
Some other points:
With home-charging you leave home every morning with a full tank of fuel. So the only time this needs thought is "out of range days"
I find that motorway traffic and roadworks means that predicted consumption is almost invariably bettered
3rd party public charging has been universally dreadful for me. Do you level best to only charge at Supercharger (or if not possibly try to stick to newer companies that are offering better solutions - e.g. Ionity).
Plugshare and
ZapMap have crowd-sources data of recent user experiences, so can be useful to see if pumps have been working recently / people had to wait / that sort of thing