There’s been an increase in chargers just about everywhere. It should be simple enough to find somewhere you’d regularly visit that has a good 7.4/22kW charger. Depending on the car you end up with and the tariffs around you, it will still work out cheaper and definitely easier than petrol. Plug in to a rapid monthly whilst doing the weekly shop or, should the car accept 22kW charging, even a 3phase AC charger and you’ll have refilled your monthly use when you’re done. I know Lidl usually have chargers outside most bigger stores and they aren’t horrifically priced.
Regularly doing short journeys makes no mechanical difference, we don’t have to warm lubricants up to get effective protection, the batteries, motors and other moving parts aren’t heat sensitive for failure prevention. You’ll lose a little efficiency but on your mileage, who cares?
Charging would depend upon circumstances. If you could overnight charge at home for pennies, I’d be charging around 40% and charging to a max of 80% but if I could only use public chargers, I’d let them drop further and charge up to 85-90% but much less frequently.
There’s been more than a few threads here including filters clogging and the subsequent problems from unavailable cars or repetitive breakdowns. Add in the potential for delays in replacement parts and down time for repairs, I’d not feel right not suggesting looking into a reasonably sized battery in an EV and looking at the costs locally. As an idea, there’s a channel on YouTube called EnyaqGorm. He’s ran a 60kWh Enyaq and shows how it’s not a problem even on long runs. If you can find a car capable of real world 200+ miles, you’ll be fine locally and on longer runs.
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I'll try to give my honest opinion but am always open to learning.
Mark