Does Heat + Unplugged Shorten Long Term Battery Life?

Suppose a Tesla sits in an Arizona garage, air temp is 110 and garage temp is 140. If the car is not plugged in, the TMS won't fire up to cool the battery, right? If the battery sits for days at that temp without being cooled, can that cause long term damage?

Heat is hard on batteries, unless they have coolant flowing through. See Nissan LEAF.

The short answer to your question is NO. And the Model S battery actually performs better at very warm temps (approx. 90ºF) than it does at room temps (approx. 75ºF) or colder. If you are expecting this Model S battery to perform in a manner similar to other consumer batteries, you may be in for a shock.

The Model S will cool the battery; it was designed by Smart People.

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