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No garage. Live in Tucson - HOT weather question

Sat Feb 10, 2018 5:50 am

I see a lot of questions about cold weather and its effect on the car - how about the effect of hot weather? We don't have a garage and it can get very hot in Tucson in the summer (about 105F often). At work I park outside but have some coverage with large solar panels located above the parking spot. At home, I park in the driveway, no coverage. Thanks.

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Location: AZ

Re: No garage. Live in Tucson - HOT weather question

Sat Feb 10, 2018 10:12 am

Your car has liquid cooling and the ability to manage the temperature of the battery. It can be better not to park in a hot garage in the summertime. For example, a car that is trying to keep its battery cool, will expel heat into the garage enclosure, creating an even hotter garage. Or say a vehicle like a Nissan Leaf that doesn't have liquid cooling like the Bolt, will not have any chance to cool at night temperatures in a enclosed garage. Finding unenclosed shade instead though, can be helpful.

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Location: SF Bay Area

Re: No garage. Live in Tucson - HOT weather question

Sat Feb 10, 2018 6:54 pm

An extant thread about hot climes :


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Re: No garage. Live in Tucson - HOT weather question

Tue Feb 13, 2018 7:41 am

I’vehad mine for a year and gone 15,000 miles.

It seems to do well in the heat and poorly in the cool and I’ve never had mine colder than 40 degrees.

According to the in car display, 90 degrees OUTSIDE temperature is ideal. Even at 85 degrees my driving “score” is starting to get lower.

So 90 degrees is not a maximum, just anything above (and apparently below) this is less than ideal.

Range is down significantly as soon as the 50’s.
But I’d think the battery would be “healthy” at 50, just not drive as far.

Many years ago I looked at racing electric vehicles with lithium batteries and just like you smoke the tires to heat them and make them stickier, you want your battery as hot as 150 degrees F to get the maximum power out of it.

Now maxiumum power and maximum life are very different things: race cars don’t expect to go 100,000 miles on the same battery. But it illustrates they tolerate heat very well.

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