Tesla Preconditioning: How It Works and What It Costs
Preconditioning warms a Tesla's cabin and battery before you drive or fast charge. Plugged in, the energy comes from the wall and costs you no range. Unplugged, it runs off the pack and only above 20 percent. Tesla's own manual says to allow 30 to 45 minutes, and a warm pack fast-charges in roughly the time a cold one spends just heating up. Here is how it works, what it costs and why it sometimes does not run.