when i put heater on my predicted range drops by 40/ 50 miles instantly, but goes back up when you switch it off again, so i dont think using it is particularly as wasteful as with ice vehicles. electric seat and steering wheel dont affect range at all oddly.
It’s the way the Kona and most other EV’s work, most of the electrical systems like radio, lights, heated seat run off the 12V battery, only the A/C runs off the main traction battery.
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