Lithium batteries aren't wet like SLA batteries, they just won't charge at low temps. I'm sure there is a point where they freeze, but it's not like a lead-acid battery. The author is ranting about things they don't appear to know anything about.
Lithium batteries typically have a charge controller that won't allow them to charge at very low temps, I assume because if the plates and separators inside are super-cold, the immediate heat could crack them and destroy the batteries. This is a danger, and could cause fire.
There is a video around of an EV driver who could not get his car to charge due to the low temperatures. The charging stations pre-warm the batteries before charging them. It was so cold, the batteries of his car never reached a stage where they could be charged. He left the car plugged in for hours, and there was no charging at all.
Yep. The charge controllers have a specific range of temperatures they work in. Go outside that range, and they stop.
It got to about -10 here a few weeks ago, and a friend sent me a picture of his phone. It had gone into cold shut-down mode just from being outside scraping his (gasoline) car windows for about 10 minutes...
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