5 reasons why your smartphone charges very slowly


Sooner or later, this problem affects every smartphone, regardless of brand, manufacturer and cost. We mean problems with the battery. Surely many of you have noticed that a smartphone that has served you well begins to charge more slowly than after purchase. At the same time, it works for about the same long time as before. What could be the reason for this “behavior” of your gadget? Let's figure it out.

The power supply is insufficient

Have you noticed that your phone charges much slower from a computer or cigarette lighter? Everything is logical: the output power of the USB connector is 2 or more times less than from the mains. In general, experts advise using alternative means of recharging as little as possible.

The same applies to charging a mobile phone from a wireless network. This method of refueling is really cool, but you will definitely lose a lot in speed.

The same problem can occur when charging from the mains. The reason is the insufficient power of the unit itself. Information about it is given on the device body. It is better to use the original block or choose one with similar characteristics.

Suspect number 1 - charging cable

The first thing that comes to mind when you are charging your smartphone and something goes wrong is that the USB cable is to blame. And in most cases this is true. USB cables bend, twist, fray, you can crush them with the leg of a chair or table, your cat can chew them with pleasure, and so on. The result is the same - the internal structure of the wire is damaged and it begins to work poorly.

But even if there is no external damage, the cable may still be the culprit for slow charging. The USB port may become damaged or even oxidized. The contacts may become bent and make poor contact with both the smartphone charging port and the power supply plugged into the outlet. Therefore, carefully monitor the integrity of the USB cable.

Phone battery is decalibrated

In some cases, chaotic charging and discharging cycles of a smartphone, as well as long-term operation, can lead to decalibration of the battery. This can be seen when the gadget turns itself off if the battery charge is above 1%.

In this case, it is recommended to calibrate the battery, fully charge and discharge it. If the phone turns off when the charge level is above 1%, then turn on the device again (without connecting it to the charger) and until it is completely discharged.

Calibrate your phone battery

If calibration does not help, replace the battery completely.

Replace the battery completely

Charging time

First, let's figure out how long your Samsung smartphone should charge. This information is individual and depends on several components:

  1. Battery capacity. The larger it is, the longer it takes to charge the power source.
  2. Smartphone model.
  1. Availability of fast charging, etc.

Older Samsung phone models require two to three hours to fully charge. A new smartphone charges in less time - within 1-1.5 hours (sometimes this period is even shorter with fast charging). Information on this matter is indicated in the operating instructions or on the manufacturer’s website. You can look at the forums and get more accurate information on charging time.

Suspect number 4 - smartphone

If the above methods for determining the “culprit” did not help you, then with a high degree of probability the reason for slow charging may be the smartphone battery. Here you can’t do without specialized diagnostic tools, although you can go into the device settings and look at the battery capacity. If it drops below 50%, the battery will have to be replaced.

The essence of the problem with the phone battery

Before we move on to explaining the reasons and ways to solve the problem when the smartphone charges quickly and discharges quickly, we recommend booting the phone in safe mode (search the Internet for how to do this based on your phone model).

Boot your phone into safe mode

If in safe mode the phone charges and discharges normally, then your problem is not hardware, but software in nature, associated with incorrectly working software. If the problem remains, then, most likely, we are dealing with physical problems, and it is necessary to look for the causes of dysfunction in hardware factors.

What is the reason for slow phone charging?

The most common circumstances why a phone charges slowly:

  • non-original charger;
  • connector failure;
  • cable damage;
  • battery failure;
  • phone overload;
  • speed reduction by the controller.

Now, in more detail about each reason, and what needs to be done to solve the problem of slow charging.

Non-original charger

The smartphone battery has design features. For example, in lithium-ion batteries, power controller chips are mounted in a certain way; they control the battery charge and its consumption. Therefore, it is important to use “native” chargers that will supply the required current and voltage. And this is the first condition for fast charging of the gadget.

Standard universal chargers usually have a voltage of 5 V and a current of 2-2.5 A. At the same time, manufacturers produce smartphones with charging voltage of 20 V and 5 A of current. Naturally, the phone charging time will be shorter in this case.

In addition, many smartphone manufacturers now use Fast Charge technologies - each brand with its own standards. They increase speed by 60%. Even higher speeds are shown by chargers and phones with super-fast charging technology Adaptive Fast Charging - the brainchild of Samsung. But these devices are also adapted to “native” gadgets - they quickly charge their smartphones.

To increase the charging speed, use original chargers - universal chargers often cannot cope with quick “charging” due to a mismatch between the current and voltage parameters.

Connector failure

Most peripheral devices are connected to the phone via USB connectors, which often fail. Today, the two most popular types are micro-USB (somewhat outdated) or USB Type-C (modern). The first has beveled edges and a trapezoidal shape, the second has a rectangular shape. Each fits into corresponding holes.

Many users, especially those who have several smartphones, often confuse and insert the wrong tips into the sockets, thereby compromising their integrity. This may be the reason that after connecting the required connector, the phone will not charge at all or will periodically turn off due to broken contacts. In this case, it is better to contact a service center where they can fix the problem.

Another reason is contamination of the connector, as a result of which the device will sometimes turn on and off, greatly increasing the charging time. You can fix the problem yourself by using a regular toothpick: its diameter is perfect, and its material (wood) will help you avoid electric shock if you forgot to first disconnect the charger from the network.


Damage or use of a non-original cable

The process will also slow down when using a non-original cable. Any memory consists of a wire and a block. We have already said about the block parameters - a native device speeds up the procedure, but the same can be said about the cable.

The fact is that battery charging does not occur linearly - the flow of current depends on the battery charge level. It saturates a completely discharged battery to the maximum, but after a while the current flows more moderately. To control the action, many phone manufacturers use, for example, non-standard wiring in connectors, which means that connecting a non-original cable, even with the original unit, will disrupt and slow down charging.

The cable can fray or bend - all this negatively affects the filling of the device with energy. Such a cord may completely stop charging the smartphone or do so without using 100% of its power. In addition, rubbing the insulation can lead to more serious problems - short circuit or electric shock.

Battery failure

Normal battery life is limited to 2-4 years, then the battery capacity decreases, and you will no longer be able to use your smartphone without recharging for as long as before. Each battery is given a certain number of charge/discharge cycles, after which the battery begins to “age.”

And then a somewhat opposite situation arises than the problem we are considering “why the phone charges slowly,” but it is necessary to mention it. The fact is that an aging battery will be fully charged faster, but the battery will discharge even faster. If you notice that your smartphone behaves this way, it's time to change the battery.

Phone overload

Your smartphone may be overloaded with hidden apps running in the background. Let's say you used them only once, but they will load constantly, using up battery power.

An overloaded phone not only drains faster, but also takes longer to charge—while charging, some of the energy is wasted running those hidden apps. There is only one way out - go to the “Applications” tab, analyze the work of each, and remove unnecessary ones. Then check the time it takes to completely discharge the battery - it should increase.

Another problem is charging the gadget while using it at the same time. Naturally, in this case the full charge time will increase. Besides:

  • if the charger is low-power and the load is high, then it is quite possible that the phone will continue, albeit more slowly, to discharge further;
  • the battery will additionally overheat, which will increase its wear;
  • the battery may ignite, explode and injure the user;
  • additional wear will occur on the cable connector and USB port.

If you can't wait to charge your phone faster, turn on airplane mode, reduce the brightness, turn off the Internet - this will speed up the process.

Speed ​​reduction by controller

The controller is installed in each smartphone battery - it monitors the current voltage. When the battery is completely discharged, the phone charges to 5-10%. After this, fast charging mode begins with the participation of the controller, which continues until approximately 85%. Then the voltage is limited, and the recharging or slow charging mode is activated.

The controller voltage and current limits are set by the smartphone manufacturer: they are important for extending the battery life.

If you buy even a super-powerful charging unit, but the controller limits, for example, the current to 3 A, then you will not be able to take advantage of all the benefits of the charger.

Thus, we again recommend buying original chargers that fully match the capabilities of the phone.

Results

Now you know why your Samsung phone charges very slowly, what is the reason, and what to do in this situation. The main thing is not to leave the problem to chance and immediately identify the malfunction. There are also special cases. For example, the phone takes a charge slowly, and then runs out of juice very quickly. The cause may be a faulty battery or software. If the problem occurs on a new phone, it may be a manufacturing defect. In this case, you need to immediately exchange the device or take the device to a service center to obtain a conclusion about the malfunction.

Faulty cable or power supply

The first reason is trivial and occurs quite often - a low-quality charger. To check this, simply replace the power supply and cable. If nothing has changed, there is a high chance that the problem is with the device's hardware - the battery, USB connector, or power controller.

First of all, it is recommended to carefully clean the connector using a regular toothbrush or toothpick. You can first moisten them in ethyl alcohol.

Suspect number 3 - socket

Sometimes it happens that sockets (especially in old houses) begin to “fail”. This is usually due to worn-out electrical wiring, so try recharging your smartphone from another outlet at home or, for example, at work. And if you find that your smartphone is charging faster in another place, this will tell you not only that the device’s battery is in perfect order, but also that it’s time to call an electrician and check the wiring in your apartment.

Is it possible to quickly charge a smartphone using wireless charging?

Wireless charging technology, when compared in detail with standard accessories for replenishing energy, still loses. The tests carried out confirm that the new technology lags behind by approximately 30%, regardless of the chosen brand, operating system version and conditions. The only way to close the gap is to purchase additional wireless charging that supports Fast Charge. Such an accessory costs several times more, but the speed will double.


Wireless charging with Fast Charge technology.

Is it worth experimenting and spending extra money? Depends on the desired result: wireless “washers” can complement the interior of the workplace. But they still won’t be able to compete with Fast Charge with wired charging.

Helpful 10

The phone stopped charging quickly due to high temperature

As you know, high battery temperature can greatly harm it. Heating the battery leads to loss of its capacity, which is why phones have a built-in thermal sensor. The higher the current power, the more heating occurs. Well, with fast charging, the phone can heat up to incredible levels.

To prevent battery damage, the phone independently regulates the current depending on the readings of this sensor. If during fast charging the readings exceed a certain threshold, the CPU automatically reduces the charging speed. That is, for example, in hot weather, fast charging will not work (unless, of course, the smartphone is properly cooled...)! Question: do you know how long you need to charge your phone correctly?

That's all! Not one of the above methods did not help you? Write to us in the comments about the problem, we will figure it out and suggest a solution!

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Suspect number 5 - you

As strange as it may sound, it may be true. And if you use your smartphone while charging, then the reason for the long connection to the power source is obvious. And if not, what did you do wrong? It's simple - you could download applications that "eat" your battery in the background. Therefore, go to the device settings, to the “Power Management” item and see which programs consume the most battery power. There is a high probability that you will find the reason here.

You can read even more interesting and unique materials on our Yandex.Zen page.

What to do if your Honor and Huawei phone takes a long time to charge?

Here it is important to determine the condition of your gadget. If you just bought it and notice such a malfunction, then most likely it is a manufacturing defect and you need to request a replacement of the device. If it has been in use for a long time, then you may be showing signs of normal wear and tear.

New

Contact the store that sold you the product. Fill out a return request and request a replacement gadget. According to the consumer protection law, you have the right to demand a refund or replace the purchase with another device (with or without additional payment).

Used

First, determine the cause of the problem. Either observe the “behavior” of the device for several days, or contact a specialized service center. Based on the results of observation, decide what to do - repair or change parts.

Anatoly Bogdanov (Articles written: 81)

I charged for two days and scored 70% honor 7x how to solve this?

Hello, to the service center.

I have HUAWEI. Recently it takes a long time to charge, then quickly discharges. What is the solution to the problems

Hello, do a factory reset.

Hello, please change your charger.

Hello, do you charge with the original cable?

My phone is almost a year old, it started charging in 5 hours when a week before it took an hour and a half to charge, please tell me what to do

Hello, are you using the original cable?

Source

Marriage in a smartphone

Yes, yes, this happens too. If fast charging on your phone did not initially work (or stopped working almost immediately), then it is probably a defect (namely, a breakdown of the power controller due to the fault of the manufacturer). In this case, we recommend contacting the manufacturer’s official service center, because this case is covered under warranty. You can get your phone repaired absolutely free.

But also, no one forbids you to come to your friend-master. After all, now on various Internet sites you can find components for even the rarest smartphone models (not to mention brands like the same: Samsung or Redmi). Please note that after this you will not be able to contact the official service under warranty...

Your mobile phone fell into water and after that fast charging does not work?

Here the situation is similar to the previous one... Failure of the controller due to contact with water does not allow fast charging to work. Unfortunately, you will now have to pay for repairs. Usually, replacing a controller is not very expensive for the owner (from 500 to 1500 rubles), but ultimately it all depends on the brand of your phone: the more popular the smartphone, the cheaper the components (exception: iPhone).

By the way, sometimes it is not the charge controller that stops working, but the mobile USB port itself. Copper contacts oxidize and cease to conduct the required power. In any case, you need to go to a professional to clean the contacts or completely replace the port...

Damaged cable

Faulty accessories used when charging mobile equipment affect the intensity of energy replenishment more than it initially seems. A broken, frayed and dented cable is simply incapable of working 100%, which is why you can only rely on slow recharging.

It is important to remember the harmful effects of non-original accessories on smartphones and tablets. You should not take risks and purchase “inventory” from unverified online stores, hoping to save money. The risk of encountering unforeseen consequences is too high, which means there is a chance to pay for a quick repair.

Active mobile phone use

In many cases, the most immediate cause of rapid battery charge/discharge is the use of energy-intensive applications (in particular, 3D arcade games). Such games literally drain your phone's battery, and you shouldn't be surprised that after several hours of gaming your battery will be completely drained.

Resource-intensive 3D games drain your phone quickly

Also, a number of mobile applications from or “Play Services” may be responsible for rapid battery drain. In some cases, malfunctions in their operation lead to rapid discharge of the battery, which exhausts its reserve in just a couple of hours.

Google services may cause your battery to drain quickly

To solve these problems, we recommend that you restart your device and stop using energy-intensive mobile applications. This way you can significantly extend the operating time of your device.

Custom device shell

In some cases, users use a hacked system shell on their phones, where the kernel and fundamental elements are seriously modified. Due to incorrect modification, such a shell does not work well with the device’s battery, as a result of which the battery quickly recharges and runs out just as quickly. The problem may also be caused by incorrect rooting of the device, which seriously disrupts the stability of the system.

Custom OS can cause the problem

In this case, we recommend that you reflash the device using the “native” system shell of the device. If you do not know how to reflash your phone, then contact competent specialists at your nearest service center.

Reflash your phone

Causes

In addition to faulty charging, the following may be the reason why the gadget does not charge:

  • The smartphone is completely frozen - only a hard reboot will help.
  • The battery has become unusable.
  • The connector or the contacts in it are damaged.
  • The micro USB cable plug is deformed.
  • Software glitches.

Before you do anything, to solve the problem, you need to diagnose it by checking each item from the above list.

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