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tedd4uyesterday at 6:59 PM3 repliesview on HN

And human occupants will still run the heater more in winter. But it sounds like there could be a future where makers offer a sodium battery and heat pump version of their cars for sale in colder climates.


Replies

rootusrootusyesterday at 7:07 PM

> future where makers offer a sodium battery and heat pump version

AFAIK most EVs already use heat pumps today, so the future happens whenever sodium batteries become mainstream.

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jopsenyesterday at 7:09 PM

I think our id.4 2023 model already has that. It has crappy software too. Great car, drives fantastically, but horrific software!

But if they add buttons back as planned, I might be willing to try a new id.4 in 5-10 years.

metalmanyesterday at 8:27 PM

Running a preheater loop for the heat pump from the systems than need to be cooled, inverter and motor that run better cold,and other optimisations could likely supply cabin heat with very little battery draw, solar pv blended into the exterior could zero that out on an average basis,but 40 below is nothing to play with unless you know exactly what you are doing, even if they say it will still work.

https://electrek.co/2026/02/05/first-sodium-ion-battery-ev-d...