Reply To: Ownership of a Battery Electric Vehicle

#223008
Avatar photoAbercol
Participant

    Great stuff. Also, just to further confuse you, EV Database does charging curves, these are interesting in that some cars can charge on a rapid (50kw and up) charger at relatively high speed until nearly full. The Ariya, for example, charges at a max of 130kw, Journalists say ooh, thats a bit low for a new car, but its charging curve sees it charge to 80 or even 95% faster than other cars with 150kw max charging speeds.

    As spoken about earlier, the rapid charger max charging speed is often a bit of a misnomer as the speed is regulated by a lot of factors, ambient temperature, car battery temperature, car battery state of charge and how hot the battery gets whilst charging. So the graph starts out slowish, then quickly ramps to max speed, then tails off. This used to be at about 80% where it fell off a cliff, my Soul for example, gets a max of 78kw per hour, but drops to 34kw by 79% and 21kw at 80, by 85 its doing 12kw. So for me, charging much beyond 80% is pointless.

    However, the Ariya, both battery sizes, charges above 50kw all the way to 98%  – so on a long trip it would charge faster than the Soul and also take more charge before needing to unplug.

    Of course, you will only see the higher speeds on compatible chargers, a 100kw charger clearly can only deliver 100kw.

    Long trips are not an issue with limited planning required – I made a 1200 mile trip to Kent from Scotland, it was easy and took just 30 minutes more than the same trip done by me in the past in diesels with no fuel stops. I used MSA’s and specified a minimum of 4 chargers, checked on Zap Map before I left & had no problems other than a wait of 5 mins at Gretna Green (I arrived at lunchtime – not the best, even petrol cars had to queue to park up). 3 charges each way on a 550mile journey, no charge took more than 35mins and the Soul EV is not a fast charging car. Stops were around 2 hours apart. The longest distance between stops was 190miles.

     

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