Re Free power, and charging away from home in general, it’s really only worth charging when the car is well below 80% as the speeds really slow down after that whilst the car does lots of battery management, ideally though, you should charge to 100% once a month or so, just do that at home overnight.
The Kona will charge at a maximum of 11kW on AC, which is what most free chargers will deliver, but most public free chargers are either 7 or 3.5kW, Tesco for instance are 7kW, so an hour doing shopping, will probably give you somewhere around 30 free miles.
There are also quiet a few free 50kW chargers, use apps like Zap-Map to see whats local, also as new chargers get put in, sometimes these are free initially, West Yorkshire and the Manchester area new instalations are free currently.
It just takes a bit of planning, but if your mindset is on cheap motoring, it’s not too difficult, and even paying it’s still much cheaper, my break even point to make Electric cheaper than Diesel is 55p kW, andything less and I’m saving money (That was on my old car doing 51mpg)
Previous Motability Cars
2006 - 2009 Skoda Superb VR6 2.0tdi
2009 - 2012 Citroen C5 2.0tdi VTR Nav
2012 - 2015 Nissan Qashqai 1.5dci tekna
2015 - 2018 Ford Kuga 2.0tdi Titanium X
2018 - 2021 BMW 220d X drive 2 Series Active Luxury
2021 - 2023 Hyundai Kona Electric Premium SE
2023 - Hyundai Kona Electric Ultimate