The charger gets hot and got the best answer
Answer from Yergey[guru]
Lately this is when, with the onset of summer? When did the heat start?
Chargers get hot, sometimes quite hot, this is normal. Pay attention to the time it takes to fully charge; if it hasn’t changed so much that it becomes noticeable and the charge stays about the same as it should, then everything is in order.
It smells like plastic if you sniff it and it smells a little - that’s also okay, especially if it’s relatively new. Do not keep the charger in direct sunlight while working.
If the charging time and battery life have not changed, then everything seems to be in order.
But still, do not leave the charger and other electronics on. devices unattended.
Answer from Qwe[guru]
The starter can get hot, but it shouldn't smell
Answer from GT[guru]
no, this is not normal, at most it should be warm
Answer from Petrovich[guru]
Change your phone battery
Answer from Kirill kirill[newbie]
Chargers come in different capacities, of different quality, and that is why a heating battery or charger is normal. Sometimes the charger itself heated up to such temperatures that it seemed like it would start to burn. Remember the physics lesson, each conductor will heat up from the resistance voltage and current, and if you charge a phone (smartphone) that is not completely discharged, then the residual charge in the battery gives strong resistance and charging charges, but the charging or battery unit will heat up very much. So try it Charge the phone when it turns off, and everything will be okay.
Yes, almost all chargers get hot. There's nothing wrong with that. But to be on the safe side, it’s better not to leave the charger on while you’re away. Here, some people advise turning off the phone while charging, then the charger will not get too hot. Yes, this method really helps. I checked it personally.
If the charger gets slightly warm during operation, there is nothing to worry about. This is fine. Put your hand on the ventilation grille of your TV, or touch the bottom of your laptop; they all generate heat while functioning.
Another thing is if the charger heats up and becomes almost hot. In this case, it is advisable to disassemble it and check whether everything is in order, nothing is leaking, and there are no foreign odors.
In addition, when charging the phone, under no circumstances should it be placed under a pillow or covered with anything. The heat generated by the device must escape freely.
This can happen due to a faulty charger (contacts burn out) or the socket in which the charger is plugged in is not entirely suitable for it: the device dangles and, as a result, heats up.
I'm talking about situations when the charger gets hot much.
Chargers for modern smart assistants: laptop, tablet, smartphone, regular mobile phone, GPS navigator... are electrical circuits through which current flows.
Without going into the nuances of converting alternating current (mains) into direct current (for charging) and without dwelling on the elemental base, it should be noted that the electric current itself passing in the conductor leads to an increase in internal energy and its heating.
The law connecting the amount of heat generated with current and resistance was discovered by scientists J. Joule and E. Lenz.
It is written like this:
Q is the amount of heat,
I is the magnitude of the electric current,
R - circuit resistance,
t — time.
8th grade physics does not describe all the reasons why the charger heats up. Of course, it is necessary to take into account electromagnetic processes in the transformer (its efficiency) and other points. But the Joule-Lenz law works.
You can learn more about heating conductors from this video tutorial
There is no need to worry, but you need to remember some physical properties of electric current. It is known that every conductor of electric current has resistance. Roughly speaking, electrons must be pushed between the atoms of the conductor, collide with them, and heat is released, which heats the conductors. Therefore, the power supply temperature of 50 - 60 degrees is quite normal. It should be noted that all the parts are in a plastic case, which transfers heat very poorly to the environment.
It's okay. Now everything is small and everything gets hot, this is in the order of things, but of course you need to know when to stop. When I bought myself a phone and put it on charge for the first time (while clicking it), I couldn’t hold my finger on the charger for a long time.
I'll tell you from my own experience. I have an extension cord for 3 sockets, not a surge protector, I bought it on ozon ru, and two devices are connected to it - a table lamp and a computer, and when I connect the charger to the third free socket, it heats up quickly, but when I just connect it directly to the wall outlet - then charging is normal. Hence the conclusion - the quality of the socket is also affected by the load on the socket.
Almost all phones still have this particular drawback. While the phone is charging, there is a load on the charger. According to the diagram, there is a transformer and a diode bridge, which create a closed circuit when the phone is connected, and this circuit heats up, that is, the transformer mainly heats up, but this does not change the matter. And how many times have I noticed that (sometimes you forget to unplug the charger from the network) nothing like this happens if the phone is turned off. The charger is practically cold.
To charge the phone, a small voltage is used, and the network, as you know, has an alternating current of 220 V. In the process of transforming electricity, some energy is inevitably lost in the form of heat, but it happens that charging the phone gets too hot. This is exactly the case that will be discussed in this article.
Contents
Should the charger get hot?
If you purchased a certified charger for a specific phone model, then the electricity converter should not heat up greatly. At normal ambient temperatures, the device may operate with a slight increase in temperature, but this condition of the device is not critical.
Strong heating of the charger case may indicate problems with the device itself or with the phone being charged. This electronic condition is abnormal and must be corrected.
What can overheating of the charger lead to?
At a minimum, operating the device in overheating mode can lead to failure of the main charging elements. Components such as electrolytic capacitors and transistors should not be operated at too high temperatures. If the charger constantly operates in this mode, then rapid failure of the device is possible.
If the board is damaged and a short circuit occurs, high currents can cause a fire. Even if a fire does not break out, the plastic casing may melt, which can cause an electric shock when trying to unplug the device or a severe thermal burn from the melted plastic.
Why does the charger get hot?
There can be quite a few reasons for the charger becoming very hot. A similar phenomenon can be observed both for natural reasons and as a result of a memory failure.
Natural causes
The charger may heat up due to natural reasons. Regardless of the power, any device of this type has an efficiency of less than 100%, so energy losses during the conversion of electric current will occur with the release of heat.
If the smartphone supports fast charging, then when this mode is activated, charging can also get quite hot. This effect occurs due to the supply of higher current to the battery contacts.
Due to malfunctions
Most often, charging gets hot due to incorrect selection of diodes at the stage of design and production of the product. If the adapter is assembled in China, then this is not surprising, because the quality of products supplied from this Asian country leaves much to be desired.
If the charger is heated from the moment of purchase and warms up to the temperature of a heating radiator operating in winter, then this may also indicate that it is working at the limit of its capabilities. This situation can occur when operating a working device to which too high a load was connected.
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.
The owner of a smartphone sooner or later notices that the phone is heating up. This can happen during a conversation, actively 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 for no apparent reason, for example, it is locked, but the body is hot. Today we will try to figure out why your phone heats up during inactivity and in standby mode.
Users know that even in a locked state, a lot of calculations, graphics processing, communication with cellular network repeaters, and a bunch of other obscure procedures take place on the smartphone. 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 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.
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%.
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 in a cell phone heat up when using a non-original charger? 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, remove unnecessary applications from the system that use processor 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.
- How to do this for iPhone is described in this article.
- 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 the 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
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.
The block converts alternating current 220V into direct current 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 until the battery charges 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 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 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.
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 their replacement 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.
