Ah, okay. So for lithium-ion cells that are not currently being used, they can withstand extremely cold temperatures with no issues. I believe Tesla used to have wording in their battery warranty that said they wouldn&#x27;t cover battery damage if you left your car parked in temperatures continuously below -40F for over 24 hours without plugging it in, but that has since been removed (whether due to improved battery chemistry or something else, I&#x27;m not sure).<p>Very cold batteries can lose longevity if you charge them without heating them up first, but most electric vehicles have builtin battery heaters, temperature sensors, etc. If you plug in a car to charge, and its battery pack is too cold, the car will first use wall power to warm up the battery, then begin charging once it can safely do so.