Any modern phone heats up when charging the battery. This is normal, the main thing is that there is no overheating. But if your mobile gets very hot when connected to a charger, this can lead to an explosion of the battery, damage to the display matrix, and reduced battery life.
If you notice overheating during charging, it is important to eliminate its causes.
Heavy use
If you continue to use your smartphone while it is plugged in, it will become hotter than usual. There is nothing strange about this, just make sure that the temperature remains within normal limits, or put the phone away until it charges.
It may also be that you are not using your phone, but applications are running in standby mode, which consequently creates a load on the processor, and the processor temperature rises above the recommended one. In this case, special “cleaner” programs will help, with which you can detect and disable running software.
While charging, experts advise turning off the Internet, Wi-Fi, Bluetooth and geolocation. If they are turned on, the phone may search for connections to wireless networks, waste power, and overheat.
Answers from experts
- If overheating is not observed (the phone is slightly warm), then there is no particular reason to worry - any smartphone and battery heats up during charging .
- If you use your phone while charging , this will also affect its temperature accordingly. Just accept it as given or put the phone aside until it is fully charged, then continue to use it as usual.
- If the smartphone has a metal case , the problem of “overheating” may be far-fetched - it is clear that a plastic case will have less thermal conductivity, but in neither case will the problem be critical.
- If Wi-Fi or mobile Internet is turned on and data is being downloaded (auto-updates for applications are turned on), then this can affect the charging temperature more than the charging process itself.
- Charge your phone with the original charger or charger with parameters close to those set by the manufacturer for your mobile phone.
- Firmware . Sometimes, due to an error in the software code of the smartphone operating system (Android, iOS) or shell (manufacturer add-ons based on Android), heating problems may occur during charging for some smartphone models. In this case, you need to look for the current firmware version (if you have an old one), or roll back to a version with no problems (if it’s new). Or you can just wait for the new version and see if the problem is resolved after the update.
You can check the temperature of your smartphone while charging using an application like CPU-Z .
CPU-Z Developer: CPUID Price: Free+
The normal temperature of the phone when charging is up to 45 degrees .
If the observed values are more than 50, then you should consider consulting the nearest service center. Why does your smartphone get hot? How to handle your hot mobile phone? Try our article to prevent your mobile phone from overheating! In this post, we will show you the reasons why your phone gets hot and the corresponding solutions.
Wrong charger
The instructions for any smartphone recommend using only the “native” charger. But if it so happens that you have to charge your gadget with someone else’s charger or buy a new one, then make sure that it is compatible with the device.
The charger may have too much output voltage. In this case, the phone will charge very quickly, but at the same time become very hot. You should not use such chargers, there is an opinion that they shorten the battery life.
In addition, if the overheating is too strong, the battery may ignite or even explode.
How to understand what the problem is
To find the cause of excessive heat, you should look at the charger label. If the specified value in mA is less than what is required to charge the battery of a particular phone model, then such a device will always work with the release of a large amount of thermal energy.
If the charger is covered with any object during charging, the product body may also become very hot. In this case, the charger may burn out due to overheating.
A short circuit in the charger, cable or phone connector will also cause the device to become very hot. It will not be difficult to determine such a breakdown by the lack of charge in the smartphone battery.
The device can short-circuit if the internal insulation or the cable connected to the phone melts, or if a thin copper wire gets onto the plug contacts while connecting the charger to the mobile device.
Still have questions or have something to add? Then write to us about it in the comments, this will make the material more complete and accurate.
Tight case
When you put your mobile phone on charge, it is best to release it from the case. The battery becomes warm during charging; this is normal. It is important that there is air access to the phone at this time.
If the smartphone is packed in a case that is too thick, this will interfere with air circulation. A heating battery will not be able to release heat; it will remain inside the case and heat the phone even more. This situation is very fire hazardous.
- Author: Elena
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Laptop temperature monitoring
You need to monitor not only the condition of the adapter, but also the temperature of all laptop components. It is difficult to determine how they heat up by touch, so special utilities are used for monitoring: Speccy, CPU-Z, etc. In addition to the power supply, it is necessary to periodically check the temperature:
- Storage devices, especially if the laptop has an HDD rather than a solid-state drive (SSD).
- Graphics adapter. The video card gets especially hot during games and when running resource-intensive applications: various graphics editors, multimedia programs.
- System board. The temperature of the motherboard largely determines how other components will heat up.
- Central processor. If the CPU overheats, system performance will drop dramatically.
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You can see the maximum permissible temperature of the equipment in its specification, but if you use the Speccy utility, if it overheats, the indicator next to the device will turn red.
Another clear sign of excessive temperature rise is freezing and periodic unauthorized shutdown of the laptop. If you encounter such a problem, it is recommended to disassemble the laptop, clean the cooling system and case from dust and replace the thermal paste. In some cases, to maintain normal temperatures, it is necessary to install additional coolers built into the cooling pad. Without proper cooling, components can quickly fail, and replacing them will require significant financial costs.
In this sense, the heating of the power supply is not such a serious problem, because in most cases, users experience unnecessary worry about the temperature, when in fact the adapter is completely working.
In any business, there are problems that many consider worthy of attention, but in fact are the norm. And there are moments that make you think that it’s time to really pay attention to the problem that has arisen. That's how it is with a laptop. In principle, the laptop charger, when it is connected to the network, and the entire charging process should heat up, but to a certain temperature. But if it gets very hot and does not cool down after being turned off, it is worth thinking about the reasons for this action in order to eliminate them in time to avoid damage to the laptop itself.
The operating principle of the device adapter, the main reason for overheating
A laptop power supply is nothing more than a separate important element of the device, which has great functional significance. Without the correct operation of this part of the entire structure, the operation of the entire device will not be ensured. Without receiving charging, the laptop battery will simply run out, and the gadget itself will be useless. The adapter consists of a transformer and a rectifier that convert the incoming alternating current from a 220 W voltage network into the direct current needed to operate the laptop.
For each laptop model, the manufacturer made sure to have its own charger with certain characteristics. Why doesn't charging work on an Asus or any other laptop? The main reason may be that the user uses a charger for his gadget that does not suit him according to its parameters originally laid down by the manufacturer. It is the discrepancy between the native characteristics and the subsequently purchased adapter that is the main reason why the equipment overheats, or even worse, the device may simply fail.
Additional reasons for charging overheating, situations that may arise
If you look at the back of the charger, there are certain numbers indicated there, which the manufacturer indicates specifically to avoid problems with this element. For example: 20 V-4.5 A. The first number is the permissible voltage, and the second is the current strength at which the charging process occurs. The adapter will heat up quite strongly in the first half hour of operation, maybe even up to 60°, but the human hand tolerates this temperature well, so there is no need to worry too much about this. But if the temperature increases to 80°, then you should be alarmed, it means that the device is not working correctly, and a problem may arise with the laptop. Perhaps the charger is not suitable, and it is worth changing it to a more powerful one, but the voltage must be acceptable by the manufacturer, but the second digit, the current strength, can be purchased more powerful, for example: 5.5 A, which will reduce the load, and the problem can be eliminated.
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This can even happen at a party if the wrong charger is used, and it is better to avoid this. It is also worth paying attention to the following details:
- excessive load on the laptop;
- the adapter is not used correctly: covered with a blanket, placed on a carpet, or in direct sunlight.
Causes
There are many reasons why the iPhone 5s is heating up. Let's look at the most basic of them, perhaps you will immediately understand the reason for the breakdown of your device. The instructions apply not only to Apple equipment, but also to Android devices, since the components are similar in functionality, and sometimes even manufactured at the same factory.
Accumulator charging
This is the first thing that comes to mind when they say that the phone gets very hot. When charging, it is not surprising that the phone battery heats up; this is normal behavior of the battery when energy begins to flow into it. If the temperature of the case does not reach prohibitive values and the device can be held in your hands, there is no need to raise the alarm. But when the hand cannot tolerate the heat, then it is worth looking for the problem and solving it. First, make sure that you are using an original charger; in the next chapter we will look in detail at what to do when the battery in your phone gets very hot.
Why the battery overheats was discussed a little higher, now we need to understand how to properly cool the phone without damaging it. There are several main ways, we list them:
- Turn off the device, after 30 minutes you will get a completely cold smartphone, you can turn it on and actively use it.
- Place the gadget in the freezer, first wrapping it in cloth or putting it in a plastic container. After 10 minutes, the device body will become cold.
- Place the device under a running air conditioner, the issue is resolved.
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CPU load
A modern smartphone, be it an iPhone, Samsung, or HTC, is a real computer, the processor of which consists of several cores that process information in a split second. It is not surprising that during the operation of several processor cores, a decent amount of heat can be generated. There is no place to take it, mobile devices don’t have a cooling system like in PCs or laptops, so they have to take it to the case. This can cause the case to become very hot.
If you play a dynamic 3D shooter for an hour, you will notice how the phone heats up. The battery will begin to noticeably drain, giving energy to the processor to calculate the complex graphics of the game. A similar picture can be observed when surfing the Internet for a long time, the reasons will be similar.
Active use of cellular network
By analogy with heating under heavy load on the processor, the device can heat up when constantly searching for a network or actively surfing the Internet. But there may be a situation where the phone heats up and dies at the most inopportune moment due to poor signal reception. The device tries to maintain a stable connection with the cellular repeater, actively exchanging information with it, so it is not surprising that the batteries in such conditions will last for a couple of hours.
Let's look at another situation - why the phone (iPhone or Samsung, it doesn't matter) gets hot when using 3G or during a long conversation. The situations are similar, the exchange of information occurs very actively, it is because of this that the battery is discharged, just charged to 100%.
