I'm really sorry if this offends anyone, but so many of the comments on this thread are simply repeating the out of date scare mongering points the die hard petrol heads have thrown into the arena to try and put down electric motive power.
Don't bury your heads in the sand becasue electric cars are coming and coming far more quickly than most people realise. We will be forced by government and local authorities to relinquish the free for all motoring we have enjoyed for years, and that will mean we will have to review all our motoring want's and needs, and that includes caravanners.
It is clear the Government want's to push low emission motoring becasue of their stated aim to have no production of IC cars for the UK by 2040. No I will be honest I#m not sure if that really does mean no IC cars or whether its their looking for Zero emission vehicles, which could allow Hydrogen based vehicles - we will have to wait and see. - But currently (no pun intended) the motoring world in general sees electric vehicles as the way forward.
With the present state of development Electric motive power is not suited to every application. But the genre is developing quickly in part becasue of the governments 2040 deadline. The present Achilles heels of electric motoring seem to be range, and charging times, which both come down to battery technology. This is where there are so many new developments are taking place as we speak. New types of battery will see energy densities increasing which should address the range issue. The present limitations of charge time are basically caused by the battery construction (functionally battery internal resistances) and managing heat dissipation, there are developments which look promising to improve this 100 fold or more, which will reduce fast charge times. One company is claiming to be able to fast charging when teh vehicles are able to accept very high power recharging
https://www.forbes.com/sites/joannmuller/2017/01/05/chargepoints-new-stations-promise-fast-charge-in-minutes-for-your-electric-car/#7a724ea5492d
https://www.express.co.uk/life-style/cars/862987/Electric-car-battery-recharge-six-minutes
Concerns about the recharging infrastructure, can our national power grid handle it, and the answer is we actually have the capacity to generate all the power we need and to distribute it, but not all at once at the same time. It needs the recharging systems to become SMART or more flexible, and the implementation of local storage points (batteries) to serve localities and balance the load on the grid. It may also mean that new houses are built with a battery system that can be charged by solar or wind generation or trickle charged by the national grid, but are there and can provide the necessary high power demand to recharge cars and supplement the national grid at times of high demand. As we stand at the moment this would means teh grid will be working harder more of the time and soaking up what is currently standby peak supply systems more often so there will have to be more power generation capability created. What form that would take is not clear. Incremental increase in solar voltaic and wind generation will help but it will probably need more large scale generating units.
Inevitably there will be tales of woe about specific cars, Whilst it is clearly a disaster for the person concerned and of course they need to be able to end up with a suitable vehicle, but if you drill down into the statistics, you will find that most electric cars fail to meet the manufactures optimistic range figures, but then almost exactly the same complaint can be raised against the IC counterparts. Bu specifically emmersons post does seem particularly bad, and I wonder if the vehicle was faulty, or the owner was not being realistic in the way they were using or charging it - we will never know.
Batterie life - there were dire predictions about the life of electric car batteries, the all-be-it short history so far suggests that battery life is much longer than originally predicted by the manufacturers, and certainly nowhere near as controversial as the ner do well's predicted.
Battery replacments have been much fewer than expected, and teh cost of the excise whilst it may seem high, consider teh other saving you have made on servicing replacements of parts, and of course fuel. I'll bet if some one did the whole life costs of an electric car they would be no more expensive than a conventional similar class of of IC car.
As for the resale values of electric cars, Its no different to the S/H values of IC cars, some are good and some are not so good, and it down to what the customer is prepared to pay and how much competition there is for that particular car.
There are going to be changes in what we are allowed to do in terms of motoring, But as we progress towards 2040 we will also see a lot more improvements in electric and other low emission forms of transport.