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Steps You Can Take Right Now to Avoid an Overheated Phone

1 of 10Jeff Carlson/CNET

We're barely into summer and already the US has seen a devastating heat dome pushing temperatures to uncomfortable heights. And if you're hot, know that your phone is even hotter, which can make it turn off abruptly or potentially damage the battery.

But there's no need to get hot and bothered, especially when you know these easy ways to keep your iPhone or Android phone from overheating.

See also: What else can you do to keep cool? Here are more practical tips for your phone, plus ways to stay cool indoors.

2 of 10Jeff Carlson/CNET

Manufacturers like to boast about how bright their phone screens can get, allowing you to see your display clearly even in direct sunlight. Pushing the intensity of those pixels to 1,000 or 2,000 nits of peak brightness is great for reading what's on the screen, but sustaining that level uses more power and generates more heat than when you're inside or in the shade.

Plus, direct sunlight delivers radiant heat to items like metal and glass, increasing the temperature of your device. If you need to use your phone for an extended period of time during sunny, hot days, find some shade to protect both it and you.

3 of 10Jeff Carlson/CNET

If you don't want to expose the phone to the sun, what about keeping it in a car while you're frolicking on the beach? Setting aside the risk of having it nabbed in a break-in, cars turn into hotboxes on sunny days, which can easily push past the recommended operating temperatures. It's better to take the phone with you.

Which reminds me: I know you'd never leave a pet in a hot car, but they can get overheated elsewhere. Here's how to take care of your vulnerable furry friends.

4 of 10Jeff Carlson/CNET

It's normal for a phone to heat up while it's charging -- the phone's surface dissipates that heat away from the inside by design. But if you're using a bulky case, the heat could get trapped. If the phone seems to be heating up too much when plugged in, remove the case before charging.

5 of 10Jeff Carlson/CNET

Heat doesn't just come from the outside environment.

Your phone's processor has to work a lot harder when you do something like play graphics-intensive games, which can generate more heat than usual from within your device.

And playing these games can also drain your battery quickly, so it's natural to want to plug into power.

However, this combination of high processing and charging increases the heat generation even more, leading to overheating.

6 of 10Jeff Carlson/CNET

Video recording is resource-intensive, capturing and storing multiple megabytes of data per second and usually processing that footage at the same time. Even expensive mirrorless cameras capable of shooting high-quality video hit thermal ceilings (or have add-on fans to dissipate the heat). 

If you're recording lengthy clips, you may need to pause for a few minutes between them to allow the phone to cool down.

7 of 10Jeff Carlson/CNET

It's just a power charger, so why not get the cheapest one? Be wary of amazingly low prices, because they're often attached to knock-off products that don't include safety electronics for regulating power throughput and preventing overheating. 

It's better to pay slightly more and get a recommended USB-C charger or power bank that you know you can trust.

8 of 10Jeff Carlson/CNET

It sounds like the worst sort of overly general advice: Make sure your device's software is up to date. And yet it's usually good advice, especially in this case. 

For example, a bug in iOS 17, plus a problem with some apps, including Instagram and Uber, caused many iPhone 15 Pro phones to overheating. Apple soon released an update to fix the problem.

Note that it's normal for a phone to warm up during and after a system update as the software optimizes data in the background. However, this is a temporary temperature elevation.

Also, if you're running prerelease software such as the iOS 26 beta or the latest Android 16 beta, it's not uncommon for phones to run a little hot because the software usually doesn't get optimized for battery life until just before launch.

9 of 10Sarah Tew/CNET

If you can't avoid the heat and often find yourself waiting for the phone to cool, consider buying an inexpensive thermal phone pouch to store it in. Using materials designed to protect astronauts from temperature extremes, a pouch will reflect direct sunlight and heat away from the phone. Thermal pouches also work at the other end of the spectrum, protecting your phone from cold weather, such as when you're skiing.

10 of 10Andrew Lanxon/CNET

If overheating becomes a frequent problem -- and the phone isn't exposed to the other situations mentioned in this gallery  -- a faulty or failing battery might be the cause.

First, see what the phone is telling you: on the iPhone, go to Settings > Battery and check Battery Health. On Android, go to Settings > Battery > Battery Diagnostics (Pixel) or Settings > Battery information (Samsung). If the functionality is degraded, it might be time to schedule a battery replacement.

And if the phone is bulging, cracked or shows other signs of a swollen battery, turn it off and contact the company's support programs immediately. That's a less likely circumstance, but with lithium-ion batteries, you don't want to mess around with safety.

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