Since buying an EV I was surprised at just how much temperature affected range. Even in my Volvo C40 with a heat pump it's definitely noticeable. Here's an exam

Since buying an EV I was surprised at just how much temperature affected range. Even in my Volvo C40 with a heat pump it's definitely noticeable. Here's an example range vs temperature graph for Tesla S100s showing as much as a 30% reduction in range in cold temperatures. It's a similar graph for every EV: https://cdn.shopify.com/s/files/1/0196/5170/files/model_s100_range_temp_imperial_grande.png?v=1530552309 https://cdn.shopify.com/s/files/1/0196/5170/files/model_s100... This article is about a specific problem which is you can't even charge the battery if it's cold enough. That seems like a pretty terrible failure mode that needs a solution. The general range problem is simpler. Partly it's because the battery chemistry works less efficiently when it's cold. And partly it's because some of the battery is being diverted to heat the cabin. (Another surprise owning an EV; they're hard to heat! No big engine throwing off waste heat. It's no accident most high end EVs have resistive seat heaters.)