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harrisonjr98

macrumors 6502
Original poster
Dec 15, 2019
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Hey all, thanks for clicking!

So, we're entering August and in my home city we're averaging over 100F most days. I had to borrow my brother's older car for moving recently and it didn't have AC. I toughed it out in the sweltering heat, but my trusty iPhone X spit out a temperature warning and had to cool down before I could use it - and it wasn't even in direct sunlight! That's probably not an uncommon occurrence for some of you depending on where you live, either.

I had an 85-ish F day a couple years back where I accidentally left my X in it's dashboard phone holder for almost an hour, and my brain still returns to that as the potential culprit whenever my phone acts up.

Is this rational? How realistically worried should one be about damage to a phone from heat other than quicker battery wear which is obvious. What about situations where I have no choice but to leave my phone in the car? Occasionally I work in a secure environment that doesn't allow personal devices, and if the day is 100F or more, is the glove box even sufficient at that point? I feel like this is a dumb question considering my car radio itself regularly weathers this temperature every day and still works fine, but I'm a bit more protective of my expensive devices. :)

Figure I can't be the only one who finds themselves in similar situations in the summer and thinks a decent amount about it. Any advice, insight, or stories appreciated.
 
Do not leave your phone in the car during the summer, even in the glove compartment. Doing that can damage the battery and other components of the phone.

I mean yeah, I try to avoid it of course. What's the best thing to do if you're forced to for some reason though?
 
High temps can permanently shorten the battery life too. It seems like a lot of risk to take.

”Using an iOS device in very hot conditions can permanently shorten battery life.

Store the device where the temperature is between -20º and 45º C (-4º to 113º F). Don’t leave the device in your car, because temperatures in parked cars can exceed this range.”

 
Hey all, thanks for clicking!

So, we're entering August and in my home city we're averaging over 100F most days. I had to borrow my brother's older car for moving recently and it didn't have AC. I toughed it out in the sweltering heat, but my trusty iPhone X spit out a temperature warning and had to cool down before I could use it - and it wasn't even in direct sunlight! That's probably not an uncommon occurrence for some of you depending on where you live, either.

I had an 85-ish F day a couple years back where I accidentally left my X in it's dashboard phone holder for almost an hour, and my brain still returns to that as the potential culprit whenever my phone acts up.

Is this rational? How realistically worried should one be about damage to a phone from heat other than quicker battery wear which is obvious. What about situations where I have no choice but to leave my phone in the car? Occasionally I work in a secure environment that doesn't allow personal devices, and if the day is 100F or more, is the glove box even sufficient at that point? I feel like this is a dumb question considering my car radio itself regularly weathers this temperature every day and still works fine, but I'm a bit more protective of my expensive devices. :)

Figure I can't be the only one who finds themselves in similar situations in the summer and thinks a decent amount about it. Any advice, insight, or stories appreciated.
I have a 1997 Honda Accord. It has no A/C and all four windows are closed because they are power windows. Work is 35 minutes away, but during traffic that turns into one hour and 15 minutes.

I live in Phoenix. Today we just hit 118º. Fortunately, because of the pandemic I've been home since late May. But last year I was routinely making that drive.

Apple's website says that my model iPhone (6s+) gets the high temp warning at 113º. Last year, I had that multiple times.

My car has been used in the summer for various trips in this same condition since 2015. I believe the A/C actually died in 2014. The actual compressor for it seized last year and they had to find a belt to route around it.

Anyway, my battery has been okay. Not great, but it's the original battery. All the other components are still working fine.

Additionally, I got a Pixel last year and that not only gave me a warning but shut down on me. It too is still doing okay.

I should mention that we average 105º to 109º during the summer, but it looks like we will break our record of 33, 110º plus days this year.
 
I feel like this is a dumb question considering my car radio itself regularly weathers this temperature every day and still works fine

Your car radio doesn't have an integrated rechargeable battery, that's the difference.
 
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If you know you're going to have to store it in the hot car during the day, bring a small cooler with blue ice packs in it wrapped in a cloth. The iPhone will stay cool but won't get too cold.
Or if you have to use the glove box, put a couple small blue ice blocks in there too. It'll make all the difference
 
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I live in Phoenix (118 today) and leave my phone in my car all afternoon inside a cooler with gel packs. I wrap the phone in a microfiber cloth and it has never shown the temp. warning on the screen once. I've been doing this for years and have never had a problem. That being said, without these precautions I would never leave the phone in a car during the summer here...
 
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It took this many replies to repeat The same thing over again about not leaving Your phone in a hot car?😁

All I can say is when I leave my car, so does my phone. End of story.
 
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Occasionally I work in a secure environment that doesn't allow personal devices, and if the day is 100F or more, is the glove box even sufficient at that point? I feel like this is a dumb question considering my car radio itself regularly weathers this temperature every day and still works fine, but I'm a bit more protective of my expensive devices. :)

Figure I can't be the only one who finds themselves in similar situations in the summer and thinks a decent amount about it. Any advice, insight, or stories appreciated.

What do your co-workers do in these situations?
 
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