Avoid Overheating! How NOT to Charge Your iPhone (It’s Simpler Than You Think)

Learn simple tips to avoid iPhone overheating while charging. Keep your device cool and battery healthy. It's easier than you think!

Have you ever grabbed your iPhone and noticed it’s super hot? Yeah, it’s a common problem. You know, you plug it in at night, hoping to wake up to a fully charged phone, but instead, you get a device that feels like it’s been in the oven all night. Not only is it uncomfortable to hold, but it can also mess up your iPhone’s battery in the long run.

But hey, don’t worry! Keeping your iPhone from overheating while charging is easier than you might think. This guide will bust some myths and give you practical tips to make sure your iPhone stays cool and happy when it’s juicing up.

iPhone Charging

The Science Behind It:

Our iPhones use lithium-ion batteries, which are great for lasting a long time. But they’re picky about temperature. Heat can make them wear out faster, so they can’t hold as much charge. iPhones like it best when they’re charged between 62°F (16°C) and 95°F (35°C).

If it gets too hot or cold while charging, it stresses out the battery. Then it has to work harder and gets even hotter. This can mess up the battery and maybe even damage your iPhone.

The Role of the Charger and Cable:

Not all chargers are good for iPhones. Apple makes special ones that work best with their Lightning cables. These chargers have a “Made for iPhone” label. They’re made to give the right amount of power and keep things from getting too hot.

Other chargers might not be safe. They could give too much power or make too much heat, which can hurt your iPhone.

Common Mistakes Leading to Overheating

Using Incompatible Chargers and Cables:

Plugging your iPhone into any charger you find might seem easy, but it can cause big problems. Here’s why:

Power Problems: Some chargers don’t give a steady amount of power. This confuses your iPhone’s battery and makes it work harder, getting hotter.
Safety Issues: Chargers that aren’t certified by Apple might not have safety features. This can make your iPhone overheat or even cause damage or fires.

You can tell if a charger is real by looking for the “Made for iPhone” (MFi) label. Apple also has a list of places where you can get real iPhone chargers.

Charging in Really Hot or Cold Places:

Imagine leaving your iPhone on your car’s dashboard on a super hot day. The heat can damage your phone and make the battery work too hard. The same thing happens in really cold places.

Here’s how to keep your iPhone cool while charging:

Stay out of the Sun: Charge your iPhone in a cool place away from the sun.
Watch the Weather: Charging in really hot or cold places is bad for the battery. It’s best to charge your iPhone where it’s not too hot or cold.
Be Smart: In hot weather, don’t leave your charging iPhone in hot places like a car or a bag.

Using Tough Apps While Charging:

We all love playing games or watching shows on our iPhones. But these things make the phone work hard and get hot. When you charge your iPhone at the same time, it can make the battery too hot.

Here’s how to use your iPhone less while it’s charging:

Take a Break: Try not to use your iPhone too much while it’s charging, especially for games or videos.
Focus on Charging: If you really need to use your iPhone, let it charge a bit first before you start using it again.

Overnight Charging and Battery Myths:

For years, people have believed a myth about charging your iPhone overnight: they thought it would hurt the battery. But don’t worry! That’s not true anymore, especially with newer iPhones. Here’s why:

Smart Charging: Newer iPhones (iOS 13 and up) have a cool feature called “Optimized Battery Charging.” It’s smart! This feature learns when you usually charge your phone overnight and waits to charge it past 80% until just before you wake up. This helps the battery last longer because it spends less time fully charged.
Modern Battery Care: Apple made iPhones smarter about batteries. They watch how healthy your battery is and how hot it gets. If it’s too hot, they adjust how they charge to keep it safe.
So, you can leave your iPhone plugged in overnight without worrying. But if you’re still not sure about overnight charging, here are some other things you can do:

Charge a Bit Before Bed: Plug in your iPhone for a short time before you sleep, maybe just enough to get it to 80% charged. That’s enough for the night but doesn’t keep it fully charged for too long.
Pick a Charging Time: You can use your iPhone’s settings to pick when it charges. Try to choose times when you’re not using your phone, like late at night.
Remember, the important thing is not to leave your iPhone fully charged for too long. If you do one of these things, your battery should stay healthy, and you can still charge your phone overnight.

Simple Steps to Safe and Cool iPhone Charging

Now that we’ve debunked the myths and identified common pitfalls, let’s dive into the practical steps you can take to ensure safe and cool iPhone charging:

Choose the Right Charger and Cable:

  • Stick with MFi: This is the golden rule. Always use Apple-certified (Made for iPhone or MFi) chargers and cables.
  • Identify Genuine Accessories: Look for the “Made for iPhone” logo on the packaging or cable itself. You can also find a list of authorized Apple retailers on the official website.
  • Consider Alternatives: If your original Apple charger is damaged or lost, invest in a replacement from a reputable brand that offers MFi certification.

Find a Cool and Ventilated Charging Spot:

  • Avoid Heat Traps: Steer clear of direct sunlight, enclosed spaces like car dashboards, or underneath pillows while charging.
  • Seek Airflow: Choose a cool, well-ventilated location like a desk or nightstand with good air circulation.
  • Think Strategically: During hot weather, consider placing your iPhone on a heat sink or cooling pad designed for electronic devices (optional).

Minimize Phone Use During Charging:

  • Let it Rest: Whenever possible, avoid using your iPhone extensively, especially for demanding tasks like gaming or video calls, while it’s charging.
  • Prioritize Charging: If you need to use your phone urgently, consider a quick charge before resuming your activity. Alternatively, utilize features like airplane mode or low power mode to minimize heat generation while using your phone.

Utilize Battery-Saving Features:

  • Low Power Mode: This handy feature reduces background activity and throttles processor performance, minimizing heat generation during charging.
  • Optimize Battery Charging: Leave this feature enabled (iOS 13 and later) to allow your iPhone to intelligently manage charging cycles and prevent overnight overheating.
  • Battery Health Settings: Access this section in your iPhone settings to monitor battery health and optimize charging behavior.

By implementing these simple strategies, you can keep your iPhone cool and charged safely, ensuring long-lasting battery health and optimal performance.

Additional Tips and Tricks for Optimal Battery Health

Here are some bonus tips to keep your iPhone battery in top shape:

  • Regular Software Updates: Apple frequently releases software updates that may include optimizations for battery management and thermal control. Keeping your iPhone updated with the latest version can significantly improve battery health.
  • Monitor Battery Health Data: Access the “Battery Health” section in your iPhone settings. This section displays the maximum battery capacity and lets you know if your battery needs servicing.
  • Consider Battery Replacement: If your iPhone experiences significant battery drain or struggles to hold a charge, it might be time for a battery replacement. Apple offers genuine battery replacement services, or you can visit an authorized Apple service provider.

Remember, a healthy battery translates to a smoother and more enjoyable iPhone experience. By following these simple guidelines, you can ensure your iPhone stays charged and happy for years to come.


Keeping your iPhone cool while charging doesn’t have to be complicated. By prioritizing genuine Apple-certified accessories, choosing a cool charging environment, and minimizing demanding tasks during charging, you can significantly reduce the risk of overheating. Remember, a healthy battery is a happy battery, so embrace these simple practices and enjoy a long-lasting, reliable experience with your iPhone.

FAQ on How to Avoid Overheating Your iPhone While Charging

Is it safe to leave my iPhone plugged in overnight?

    Yes, it’s perfectly safe to leave your iPhone plugged in overnight, especially if you have a newer iPhone with iOS 13 or later. These iPhones come with a feature called “Optimized Battery Charging.” This smart feature waits to charge your phone past 80% until just before you usually wake up. It helps to protect your battery from wearing out too quickly.

    Do I always need to use an Apple charger and cable?

      While you don’t have to, it’s a good idea to use an Apple-certified charger and cable (known as MFi). These chargers and cables are made specifically for iPhones, so they work really well together. They give your iPhone the right amount of power and help keep it from getting too hot. Other chargers might not be as safe and could even damage your battery or your phone.

      My iPhone gets hot even when it’s not charging. What should I do?

        If your iPhone is getting hot when it’s not charging, there could be a few reasons. It might be because you’re using apps that need a lot of power, or it could be really hot or cold where you are. Sometimes, a bulky phone case can make your iPhone hot too. Try closing any apps you’re not using, stay in a place with a normal temperature, and take off any big cases. If it keeps happening, you should contact Apple Support for help.

        How can I tell if my iPhone battery needs replacing?

          You can check your iPhone’s battery health in the settings. Go to “Battery” and then “Battery Health.” If your battery’s maximum capacity is less than 80%, it might be time to get a new one. You can get a replacement battery from Apple or a place they trust.

          What are some extra tips for keeping my battery healthy?

          Make sure your iPhone has the latest software updates. Sometimes, these updates include ways to help your battery last longer. Try using “Low Power Mode” when your battery is low. It stops some background stuff from running, which can help keep your phone cooler. Don’t let your iPhone get too hot or too cold. Extreme temperatures can make your battery wear out faster.

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