The 2018 Nissan LEAF is supposed to have at least a 40kWh battery....so the range of that should be at least 200km uphill into the wind and more usually 250km-300km for city driving.
I suspect that within 5 years the base model EVs will have 60kWh batteries and there will be many larger battery options. This would mean that a cheaper car would comfortably get over 300km on a full charge and on a 350-400km trip would only need 1 stop which would only need to be long enough to order a coffee, wait for that coffee and then drink it - by that time the car would have gained enough extra battery power that there would be no fear of not making the destination. Longer trips would require more/longer stops, but when driving longer distances it is probably advisable for the human's benefit to have some decent stops anyway.
Imagine the range on standard EVs in 2030! We will end up with Auckland to Wellington only needing 1 longer stop or a couple of quicker stops.
The EV is coming on and it will really start picking up the pace as new models enter the market over the next few years. We are going to see EVs many times every day all over NZ. Just yesterday I saw a couple of EVs in Cambridge - one 2015 Leaf and then a Tesla (Number plate T3SLA, I think).
As the number of EVs passes 10,000 and then 20,000 we will be seeing many more charging points added. Just about every town will get some fast chargers. It will get to the point that every fast food place and supermarket will want charging points in their carparks. Cafes will want charging points on the street near them. Malls will add charging points in their carparks. Businesses will realise that a person with 15-20 minutes to kill while waiting for their car to charge - well, that is definitely a potential customer of a nearby business! If 4 EV owners are charging in a McDonalds carpark then the odds are that 3 of them will grab a burger while they wait, why wouldn't a McDs want a charging point there?
Right now it is all in its infancy, I'm gonna grab some popcorn and watch it all go wild over the next 5 years! This is gonna be one hell of a ride.