How to Cool Down an Overheating Phone

Learn how to cool your phone without harming your battery and screen. Here are some practical tips to prevent your smartphone from overheating.

Smartphones & Gadgets6 min read
Reviewed and updated by the editorial team in 2026.

How to cool the phone without harming the battery and the screen is a common question during games, video recording, navigation or charging in the heat. Overheating reduces smartphone performance, accelerates battery wear, and sometimes causes the device to crash. Below are practical ways to quickly reduce the temperature of your phone and prevent it from overheating again.

1. Reasons for phone overheating

The phone heats up when the processor, graphics chip, modem, or battery are under heavy load. A little heat during active use is normal, but the case should not become too hot or cause discomfort in the hand.

  • Use of resource-intensive applications and games. Games with high graphics, video editing, long-term shooting in 4K, video calls and GPS navigation actively load the processor and the screen.
  • High ambient temperature. The smartphone quickly overheats in the sun, in the car, near the battery or under a blanket.
  • Insufficient ventilation during charging. If the phone is charged in a tight case, lies on a soft surface or is covered with a cloth, the heat is dissipated worse.
  • Hardware or battery problems. A worn battery, poor quality cable, damaged charging port, or internal malfunctions can cause overheating even without a significant load.

Also, overheating is often caused by a weak mobile signal: the phone increases the power of the transmitter to maintain a connection. This is especially noticeable in driveways, basements, elevators, or remote locations.

2. Methods of cooling the phone

If the smartphone is already hot, the main thing is to cool it down gradually. Do not put the phone in the freezer, do not apply ice or immerse it in water: sudden temperature changes can cause condensation inside the case and damage the electronics.

  • Turn off unnecessary applications and functions. Close games, camera, navigation, video editors, Bluetooth, Wi-Fi or mobile internet if you don't need them.
  • Move the phone to a cooler location. Place it in the shade, on a table or other hard surface with good air circulation.
  • Remove the cover. Dense silicone, leather and shockproof covers retain heat, so it is better to temporarily remove them in the heat.
  • Reduce the brightness of the screen. The screen is one of the main consumers of energy, especially at maximum brightness.
  • Turn on power saving mode or airplane mode. This quickly reduces the activity of background processes, modem and synchronization.

For gamers, special cooling pads or smartphone coolers can be useful. They are not necessary for daily use, but they help during long gaming sessions or streaming.

what to do When it helps
Remove the cover The phone is hot when charging or in the sun
Close games and camera The case became warm after a long load
Reduce brightness The smartphone heats up when watching videos or navigating
Turn on airplane mode The device is hot due to a weak signal or background activity

3. Cooling during charging

The phone may get warmer while charging, especially when using fast charging. This is normal, but severe overheating is a signal to reduce the load or check the accessories.

  • Turn off your phone while charging. If the device is very hot, turning off or at least locking the screen will help lower the temperature faster.
  • Use original chargers. A poor-quality adapter or cable can supply unstable voltage and heat the battery.
  • Do not use the phone while charging. Games, video calls and navigation while charging create a double load.
  • Provide ventilation for the cable and adapter. Do not place the charger under a pillow, blanket or in a closed drawer.

If the phone consistently overheats especially during charging, try another high-quality cable and adapter. If the problem persists, it is better to contact the service center, because the reason may be in the battery or the power controller.

4. Bonus tips for preventing overheating

The best way to cool down your phone is to not let it overheat. A few simple habits significantly reduce the load on the battery and processor.

  • Update your software regularly. Updates often fix bugs that cause apps to run in the background and consume unnecessary resources.
  • Use the phone without a cover in hot weather. Especially when charging, shooting videos or running heavy games.
  • Close unnecessary tabs, messages and applications. A large number of open processes increases the load on the RAM and processor.
  • Enable power saving mode. It limits background syncing, reduces screen refresh rate and helps your smartphone run cooler.

It is also worth cleaning the memory from unnecessary applications, checking the battery consumption in the settings and not leaving the phone in the car interior. On a hot day, the temperature inside the car can quickly become dangerous for electronics.

5. When should you worry about overheating?

A one-time warm-up after playing or filming is usually not critical. However, there are situations where overheating may indicate a malfunction or risk to the battery.

  • The phone constantly heats up to dangerous temperatures. If the case is very hot even in standby mode, this is not normal.
  • System overheating messages appear. Such warnings mean that the device is already limiting the operation to protect the components.
  • The performance of the phone is noticeably reduced. The smartphone may slow down, close apps, or turn down the brightness to cool down.
  • There are problems with the battery. Rapid discharge, swelling of the case, sudden shutdowns or heating during idle time are reasons to contact specialists.

Do not ignore the smell of burning, deformation of the case, swelling of the screen or battery. In this case, stop using the phone, disconnect it from the charger and contact the service center.

Cooling your phone is an important part of safe smartphone use. To extend the life of the device, reduce the load, do not charge it under a cloth, avoid direct sunlight and monitor the battery condition. Prevention of overheating helps to maintain the stable operation of the phone and avoid expensive repairs.

FAQ

How often should you check your phone's temperature?

It is recommended to check the temperature of the phone during intensive use: games, video recording, navigation, video calls or work with demanding applications. If the case has become very hot, it is better to take a break.

Can overheating damage the battery?

Yes, constant overheating accelerates the wear of the battery, reduces its capacity and can cause faster discharge. The combination of high temperature and charging is especially harmful.

Should I use a cover in the heat?

If the phone often overheats, it is better to temporarily remove the case when charging, playing games, shooting videos or being in the sun. This improves heat dissipation from the case.