The fact that the laptop power supply heats up when charging should not confuse you - this is normal. Another question is if the power supply gets very hot and does not cool down after the battery is fully charged. Let's see why this happens and what to do to prevent your laptop from suffering from overheating.

Reason for heating

The reason that the laptop power supply gets very hot when charging is the underrated power of the adapter. The more powerful the adapter, the less it heats up when charging. But with an increase in power, the size of the power supply will become larger, which negatively affects users’ perception of the laptop.

Therefore, manufacturers select an adapter with the minimum permissible power for the laptop kit. You can charge the laptop, but don’t be surprised that it gets very hot – the adapter has to work at maximum speed.

Block turns alternating current 220V D.C. 15-24V. The conversion is carried out by a transformer, and rectification is carried out by a diode bridge. Depending on the magnitude of the electrical load, both units heat up with varying degrees of intensity during operation.

Typically, maximum heating occurs during the first 20-30 minutes of operation of the laptop with the power supply connected. This is due to the fact that the adapter operates under maximum load, simultaneously charging the battery and maintaining the operation of the computer. As a result, the power supply gets very hot.

But if the adapter remains hot after charging, then this is a reason to pay attention to its condition. Why is this happening? In addition to low power, there may be several other reasons why the power supply gets very hot:

You should also worry about the condition of the laptop and adapter if, when charging, the power supply gets so hot that you can’t hold it without discomfort. Human skin can withstand temperatures of 60-70 degrees, but if the adapter heats up to 80 degrees, you won’t be able to pick it up.

How to reduce the temperature of the adapter?

Now you know why the laptop power supply gets very hot. It remains to understand how to rid the laptop of this shortcoming. You can try the following methods:

• Place the power supply in an area where it can cool naturally. As noted above, the adapter should not be covered with a blanket or any cloth. It is also contraindicated for him to lie on the carpet and be exposed to direct sunlight.
• Try not to overload the laptop when charging. Wait for the battery to charge before launching heavy games or resource-intensive programs.

If neither natural cooling nor temporary abandonment of games reduces the temperature of the power supply, then you will have to buy new equipment with more power. But to prevent the laptop from burning out, you need to choose the right power supply, taking into account the voltage. Examine the markings on the laptop case. The charger parameters should be indicated there: for example, 19V-2.4A.

Then look at the current and voltage sieve on the old power supply, which gets very hot. The voltage on it should be the same, but the current strength may be a little higher.

To get rid of overheating, you should buy an adapter with the same voltage (19V) and higher current - for example, 4.7A instead of 2.7A. In this case, the power supply will maintain a low temperature when charging, because the load on the nodes will decrease.

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 they are used for monitoring special utilities: 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 and not solid state drive(SSD).
• Graphics adapter. The video card gets especially hot during games and when running resource-intensive applications: various graphic editors, multimedia programs.
• System board. From temperature motherboard depends largely on how the other components heat up.
• Central processor. If the CPU overheats, system performance will drop dramatically.

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.

One more a clear sign An excessive increase in temperature results in 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.

Knowing why the phone is heating up, the user can try to reduce its temperature.

This will help solve one of the most common problems - although device owners also encounter it on other platforms.

If the issue is left unresolved, a smartphone may not only lose some of its functionality, but also fail prematurely.

Danger of overheating

Smartphone manufacturers provide the possibility of heating their products in some situations - when running resource-intensive applications, while charging or surfing the Internet.

Sometimes this is even considered normal and does not require any action on the part of users to fix the problem.

But, if the smartphone body constantly heats up (even when it is not in use), you should try to reduce the heating first on your own, and, if the problem becomes critical, contact service.

The danger of an overheating smartphone(and first of all, the processor and battery heat up) lies in the possibility of a noticeable reduction in battery life. After six months, the period of operation of the gadget without recharging decreases by 1.5–2 times. Sometimes its battery may even explode or spontaneously combust.

Causes of overheating

The main reasons for overheating of a modern smartphone include:

• Problems appear with the platform on which the device operates (including operation background applications and virus infection);
• The brightness set by the user is too high;
• Operation of wireless network modules;
• Wrong approach to charging a smartphone;
• Wrong case.

Almost every user can encounter any of these reasons. Moreover, usually several of them simultaneously affect the heating of the phone body.

However, dealing with most of these reasons is not so difficult - just pay more attention to your smartphone than usual.

Problems with the operating system

The reasons for the increase in smartphone temperature are often failures operating system and software.

While using the gadget, installing and uninstalling applications, inner memory filled with residual files, which sometimes affect the processor temperature.

An even more serious impact on the heating of the phone is the operation of open background applications that reduce the performance of the device and you can close them using built-in or third-party “task managers”.

The problem could also be with the firmware.- especially if it is reinstalled by the user himself. Errors in program code lead to overheating of the processor and battery. You can solve the problem with a reinstalled platform by returning the gadget to factory settings or rolling back the system to previous version(if such a possibility is provided), during the operation of which no such problems were observed. If your phone is heating up in the default version, it may be worth upgrading.

If none of the tips help solve the problem, it is possible that the system is infected with a virus– most likely, a “worm” that transfers the user’s personal data to third parties.

Because of this, the smartphone can heat up, and the confidentiality of the information stored in its memory is at risk.

The problem is solved by installing good antivirus(for example, each of these programs has free versions) and scanning the system.

Screen Options

One of the answers to the question about overheating may be the screen parameters.

The maximum brightness, which is often set when using a smartphone in sunlight, reduces battery capacity 1.5 times faster than with standard settings.

At the same time, the passive cooling system of gadgets cannot cope with the increase in speed, and the device heats up more.

To solve the problem you should use automatic settings brightness. If these indicators do not suit the user, you can change them yourself - increasing them when watching a video or while playing a game, decreasing them during normal use.

Heavy CPU usage

The smartphone's central processor is most often loaded if the user turns on modern ones.

Temperature no higher than 45 degrees is considered normal, critical - above 50 degrees.

If the gadget heats up more, and none of the methods to correct the situation helps, you should close all applications and wait about a quarter of an hour.

A smartphone that turns off due to overheating may turn off. After this, you should leave the gadget alone, trying to turn it on no earlier than after 20–30 minutes. In some cases, the problem disappears after turning it on.

conclusions

Having followed all the tips for reducing the temperature of the smartphone, the user in most cases achieves the desired result.

The only exception may be a problem with the hardware, which you cannot solve on your own. However, the solution may be to contact the service.

Video:

In ours, we looked at the reasons why a smartphone can get warm. Now we will try to answer the main questions of puzzled users about why their phone gets hot while charging.

We asked some specialists working in service centers for mobile equipment repair comment this problem. Below are the main thoughts on this matter:

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 while charging.
• If you use your phone while charging, this will accordingly be reflected in its temperature. 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 metal body, the problem of “overheating” may be far-fetched - it is clear that the plastic case will have lower thermal conductivity, but in neither case will the problem be critical.
• If Wi-Fi is on or Mobile Internet, and data is downloading(auto-updates for applications are enabled), this may affect the charging temperature more than the charging process itself.
• Charge your phone with original charger or charging with parameters close to those set by the manufacturer for your mobile phone.
• Firmware. Sometimes due to an error in the program code of the smartphone operating system (Android, iOS) or shell (manufacturer add-ons for Android based) Heating issues 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 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.

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 proper operation This part of the entire structure will not ensure the operation of the entire device. 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? Asus laptop or some other? The main reason may be what the user uses for his gadget Charger, which does not suit it 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, it shows certain numbers, which the manufacturer specifies 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.

This can happen even 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:

What can be done to eliminate overheating of the power supply

The first method has already been described a little higher. Change the power supply by purchasing a more powerful one, thus reducing the load on the device during the charging process.

What does heavy load on a laptop mean? For example, during the charging process, work occurs with programs that require large amounts of resources: graphic or multimedia programs. Or banal games, especially modern, “heavy” ones. In these cases the best way You can reduce the load by simply allowing the power supply to work independently, without additional effort, until the device is fully charged.

Using the power supply correctly means allowing it to cool naturally. Remove all reasons interfering with this process: do not cover, remove from direct rays of the sun, place on a stand where there is good ventilation.

The owner of a smartphone sooner or later notices that the phone is heating up. This can happen during a conversation, active surfing the Internet, or while charging the battery. There is nothing scary about this, this is normal operation of the device. But it happens like this. that the temperature of the device increases without visible reasons, for example, lies blocked, but the body is hot. Today we will try to figure out why your phone heats up during inactivity, while in standby mode.

Users know that even in a locked state, a lot of calculations, graphics processing, and communication with repeaters take place on the smartphone cellular network and a bunch of other obscure procedures. These processes are an integral part of the operation of the system, but there are failures in the software and hardware, then the device heats up and quickly discharges for no apparent reason. Let's look at the main symptoms that can help you understand that something is wrong with the gadget.

• The iPhone or Samsung case is hot, and you can clearly feel it.
• The system is buggy, for example, artifacts on the screen or applications launch and minimize themselves.
• There is a general inhibition of the system, slow responses to presses, or their complete ignoring.
• The smartphone battery lasts for 2-3 hours after 100% charging.

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 plant.

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.

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 where to take it, cooling systems, like in PCs or laptops, have mobile devices no, so they have to take him to the body. 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%.

Solution

Now we will answer the question of why the iPhone heats up (the instructions are also suitable for Android devices) in detail, we will analyze the main points and tell you how to cool the device’s case.

Use original chargers

Why does the battery get hot? cell phone, when using a non-original memory? When charging the battery, use the original charger or a high-quality analogue; using cheap Chinese ones is strictly not recommended. Not only do they not fully charge the battery, but also voltage surges created by a poor-quality power source can destroy an expensive smartphone, rendering the power controller or battery unusable. The replacement of which is very expensive, from 2000 to 5000 rubles. Whether saving 500 rubles on a good power adapter is worth it is up to you to decide.

We optimize the operation of the iOS or Android operating system

In order to get rid of the situation when the phone heats up and discharges very quickly, let’s try to tidy up the device’s software. To do this, we will remove from the system required applications, using CPU and memory resources in the background.

If this does not help and the phone still gets very hot, then you can try resetting it to factory settings. In 90% of cases, such a measure will help get rid of problems with overheating of the device.

1. How to do this for iPhone is described in this article.
2. For Android devices, a reset to factory settings is scheduled.

Reducing the load on the battery when constantly searching for a network

To do this, just switch the device to energy saving mode or the so-called “airplane mode”. Requests to the cellular repeater will not go through, since wireless interfaces will be disabled, but you can use the phone, excluding the Internet and voice communications. This will save the battery charge until you are in an area of ​​reliable signal reception, then turn off energy-saving modes and use your smartphone as usual.

Conclusion

In this article we found the answer to the question why a smartphone gets hot. If the phone gets hot while charging, this is normal, you shouldn’t worry about it, you should start worrying when the device gets hot while lying in a locked state. But this can also be solved, read the article carefully and watch the video.

Video