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    Yes, cold weather affects the battery of a Tesla in two ways: range and charging speed.

    Range

    Cold batteries don’t discharge as fast, which means less power. In addition, both the cabin heater, heated seats and battery heater (in Model S and X) use extra juice.

    Depending on the weather, the distance you’re driving and how you set the internal temperature, expect a reduction in range of 5% to 25%.

    Charging speed

    Cold batteries don’t charge as fast. That’s why in cold weather regenerative breaking is limited until the battery has warmed up.

    Thanks to a software update, your Tesla will start pre-heating the battery when you’re driving to a Supercharger to optimize charging speeds in cold weather.

    in Charging & Battery