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I know no one wants to hear science when dunking on Tesla, because that's obviously fun, but, the fact that their cars won't charge when it's super cold is actually good engineering, not bad.
LiFePO4 batteries are basically destroyed when taking a charge at an internal temperature of less than 32F(0C). The fact that they're not charging below that indicates someone at Tesla understood that fact.
@BE
But apparently there's no way to warm Tesla batteries from the charger? My Honda will run a heating cycle on cold batteries, then charge. It also will cool them before charging if they're too hot.