Greetings to all readers of my blog! We continue to disassemble portable batteries. The cost of a good Power bank is significant enough to put up with a rapid loss of performance. To extend the life of your device, you need to know how to charge a power bank correctly. We will talk about this today, and also analyze the situation when the Power bank does not charge: what to do, how to identify the cause and try to eliminate it yourself.
Charging the power bank correctly
To begin with, the new power bank needs to be “pumped”. First of all, we charge the battery to 100% (according to the rule, you should receive a portable device with 70 - 80% charge). It is not possible to pre-discharge new modern batteries, as was previously recommended. Next, be sure to carry out 2 - 3 cycles of complete discharge and charging to 100%. Such manipulations will allow you to “boost” the maximum possible battery capacity.
The next important recommendation on how to properly charge a power bank is to always “fill” the “energy storage” 100% and not immediately disconnect it from the network for “trickle” charging. It is carried out at low current strength, after the 100% indicator on the case lights up. The beginning and end of this process can be monitored using a USB tester. When a value of 0.1 - 0.05 A appears on its display instead of 1 - 1.5 A, then “drip” charging has begun. The battery will be charged to maximum if you wait until it resets.
You should not allow your portable battery to constantly discharge completely. It must be connected to the power supply when the critical threshold of 20% is reached. At the same time, there are two ways to charge the device: from a stationary 220 V electrical outlet via an AC adapter and from a computer via a USB cable. The first method is the fastest and most preferable. At the same time, there is the concept of battery calibration, which implies its complete discharge. To prevent various malfunctions, such calibration should be carried out once every 3 months.
The battery charge level is displayed on an LED indicator (the more lights are on, the higher the charge) or on the display (shows the exact percentage). It is recommended to always allow the power bank to “feed” completely. Short-term recharging is harmful to a lithium-ion battery, despite manufacturers' assurances that there is no memory effect. It’s unfortunate, but such an effect exists, and such irresponsible handling of the device will lead to the inability to charge it 100% in the future.
Another common question from buyers is how long does it take to charge an external battery? There is no universal answer for all models, since the time depends on the energy intensity, the presence of an additional fast charging function, and the current strength in the network (more precisely, on the value that your adapter produces). If we talk about 5 or 10 thousand units for smartphones, then they require an average of 12 hours of recharge. High-quality models with a capacity of 20,000 mAh for laptops are equipped with a fast charging function and, surprisingly, require only 3 - 4 hours. You will, of course, find more detailed and accurate information regarding the purchased device in the user manual or operating instructions.
What to do if the portable battery does not charge?
When we connect the power bank to an electric current source, the indicator immediately lights up and flashes until the process is completed. At the same time, there is no need to constantly wake up at night in order to promptly disconnect the charging gadget from the network. Most models have overcharge protection and automatically turn off when the battery is completely full.
But what to do if the real situation does not develop according to the manufacturer’s scenario? Why did an external battery that had been in service for a month suddenly stop charging? The most common reason, according to service center specialists, is a break in the wiring in the port socket. As a result, you insert the cable into the connector, but no current flows. There is one way to fix such a malfunction - solder the contacts.
If the device (especially one ordered via the Internet) does not even turn on upon first inspection, then most likely it is completely discharged, so you first need to charge it.
Many users encounter this problem when the power bank takes too long to charge (for example, 10 hours with a capacity of less than 5 mAh).
You need to look for the problem in the following:
- low-quality network adapter that produces low current output (less than 1 A);
- thin cable that loses a large percentage of current;
- controller malfunction;
- the contacts in the connector move away (current flows in and then stops flowing);
- poor quality assembly (when it’s easier to throw it away and not have to suffer).
You can try to eliminate some causes yourself (take another adapter with a good cable, disassemble and solder broken contacts), but without certain basic knowledge it is better to contact a specialist.
Very often, a cheap power bank from a dubious manufacturer not only charges slowly, but also discharges disproportionately quickly. There can be two options here: either the battery capacity is outrageously lower than declared (and instead of the expected 12,000 you actually have about 6,000 mAh), or one or more parallel-connected batteries inside the case turned out to be poorly sealed and simply came off (as a result there is a noticeable loss of capacity).
A power bank should ensure our comfort and mobility (this is its essence), but for this we must take care of it and not forget about the operating rules: store for a long time with a charge level of about 50 - 80%, avoid prolonged hypothermia, do not leave in room with high humidity. Before you begin troubleshooting any problems, you should evaluate all the risks (especially when working with Chinese counterfeits). I hope I helped you understand the issues of charging a power bank in order to avoid its premature failure. Subscribe to blog updates - share interesting information with friends on social networks and get to know the technology around us better.
What to do if the power bank does not charge your phone?
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Thank you for your attention! See you again on my blog. Sincerely, Rostislav Kuzmin.
We have already found out a lot about portable Power banks, and now I would like to talk about cases when the Power bank does not charge the phone, what to do and what ways there are to solve this problem. Don’t think that this problem can only befall low-quality, cheap models. Even owners of famous “energy reserves” are not immune from device malfunctions.
In fact, many of us do not always correctly diagnose our gadgets. Perhaps it is not the power bank that is moping, but the mobile device. Therefore, the first thing to do is to put another device (smartphone, tablet or e-reader) on “recharge”. Or connect the device to a fixed network and see if the energy is restored. If charging does not proceed, then we begin to deal with the power bank. For an iPhone, the most common cause of poor charging is a dirty port, so if you have owned the gadget for quite a long time, then you should start with cleaning.
The second diagnostic step is to check the integrity of the USB cable. The presence of cracks and kinks should alert you. Try using a different cable. If the phone charges safely, then it will be enough to simply replace the damaged cable.
Problems with power supply from an external battery may include the following:
- At first the battery is filling, but then it is interrupted;
- Charging is very slow;
- The battery capacity of the phone is not fully replenished;
- The gadget is not charging at all.
Each specific case will have its own solution. Let's take a closer look at them.
Charging starts at first, but then stops
If you have a Chinese power bank, then it is quite expected that the declared capacity does not correspond to the actual one. In this case, for a device with a real capacity of 3000 mAh, it will be problematic to fully charge a smartphone with a 2200 mAh battery. What to do? Buy a portable battery with a capacity twice that of a smartphone.
Another reason that the power bank first charges the device and then stops may be hidden in the controller, which interrupts the power due to overheating or failure. It is possible that the premature completion of the process is due to a malfunction of the contacts, which at times simply come off. More specific information can only be obtained after an inspection at a service center.
Slow charging speed
Often users are faced with the need to charge their iPhone from a power bank only when it is turned off. The only inconvenience is that everyone would like to stay connected or continue to “dig” the Internet while recharging, rather than wait patiently for several hours. So the whole point of a portable battery is lost. So why do you have to turn off your phone? The problem is hidden in the very low charging speed, which does not cover or barely covers the rate of current energy consumption.
This may happen due to:
- defective controller;
- insufficient output current (if the power bank has a 1 A connector, and the smartphone requires 1.5 A, then the energy transfer rate will drop significantly);
- a cable that is too thin, reducing current and voltage (ideally, you should not use the universal wires included in the kit, but the original ones purchased in a specialized store);
- simultaneous connection of several devices to a battery with a small capacity.
Running “heavy” applications and viruses on the phone can interfere with full charging. Also, if the power bank does not charge your smartphone well, then it is worth calibrating the battery. To do this, you first need to completely discharge the batteries, and then charge them to 100% and do this 3 times. Both the power bank and the smartphone need to be calibrated. If the phone is more than 3 years old, then we must not forget about the natural process of capacity decline. Visually check the battery for bulges and swelling - this battery should not be used.
The smartphone cannot be charged to 100%
We partially touched on this problem in the previous sections.
Regardless of the reason, before visiting the service center, I recommend doing the following:
- check whether the smartphone is fully charged when the smartphone is turned off;
- carry out calibration using a fixed network.
It is quite possible that it is not the power bank that is not fully charging the smartphone, but that the program simply displays the charge level incorrectly. To check this, you need to use additional devices, or compare it with the process from a 220 V network.
The phone is not charging at all
The first thing you should pay attention to is the compatibility of the power bank and the smartphone model. If there is incompatibility, the power bank accumulates energy, works properly, the indicator blinks, but does not charge the connected device. To check, connect another smartphone and see if it charges. If it turns out that the power bank does not charge only your smartphone, then there is only one way out - buy another one, checking in advance about compatibility.
If earlier the energy transfer went smoothly, but suddenly the power bank stopped charging the phone, then there is definitely a malfunction or wear of one of the two batteries. The malfunction may be related to the cable, the condition of the connectors and the board. The reason may be a fall, improper operation, high humidity (oxidation of contacts), or the banal depletion of battery life.
The recommendations provided in this article should be taken as advice and not instructions. They will help you understand the problem and avoid unjustified calls to the service center, but in case of a serious malfunction, specialists must solve the problem. Incompetent “treatment” of the device can lead to irreparable consequences.
Thank you for taking the time to read the article. I hope you were able to find the information you needed and don’t regret your time. Subscribe to updates and share the link with friends on social networks.
If you want to stay informed, I'm in instagram, where I post new articles that appear on the site.
See you again on my blog. Sincerely, Rostislav Kuzmin.
We live in an era of high-tech progress, in which it is impossible to imagine our daily life without portable devices such as laptops, tablets or mobile phones. All these devices have long ceased to be luxury items and are an integral part of our lives.
In turn, manufacturing companies are continuously improving their products, striving to create perfect models that combine high performance, compact size and long battery life. For example, modern smartphone models are not inferior in functionality to desktop computers. Recent dreams of keeping the whole world at your fingertips have already come true today.
However, despite the excellent technical characteristics and high performance of modern models of laptops, Internet tablets and mobile phones, there are still major shortcomings in the production of power supplies. Very often, users encounter a problem when their device is connected to the network, however, the charging process does not proceed. In this situation, many people think that they cannot do without the help of professionals and turn to service centers. However, you can cope with this problem yourself. You will learn what to do if your device stops charging from this article.
Causes of malfunction
Autonomous operation is one of the key advantages of portable devices, achieved thanks to the built-in battery. Failure to follow the operating rules specified in the technical documentation for the device may lead to failure of the autonomous battery. Therefore, to extend the life of the battery, it is necessary to carry out correct charge/discharge cycles.
In most cases, the fault for the fact that the battery does not charge from the mains lies with the owner of the device. As an exception, the cause of malfunction of the electrical system of the device may be a manufacturing defect, but such cases occur extremely rarely in practice. Therefore, in order to protect yourself from such unpleasant situations and extend the battery life, it is necessary to periodically perform preventive maintenance work on laptop computers, smartphones, tablet PCs and other devices equipped with a built-in battery.
It is worth noting that regardless of the similar operating principle, there are many differences in the operation of each individual device, so the maintenance and operation of each of them requires an individual approach. However, in order to independently restore functionality and the ability to operate autonomously to your device, you must have an idea of what caused the device to fail, as well as be able to correctly diagnose the device.
Reason #1. Uncalibrated battery
Most modern devices use lithium-ion batteries, which do not have a memory function. In other words, you can recharge them at any time without waiting for the charge level to drop to the recommended 20%. A special controller is responsible for the operation of a portable device, the failure of which can result in the battery not being charged when the device is connected to the network.
In this situation, battery calibration, aimed at optimizing the operation of all battery elements, can help solve the problem, and will also allow the device to obtain real information about the battery charge level. In addition, several complete charging/discharging cycles of the battery can restore the battery’s ability to charge from the network.
Reason #2. Temperature
The process of operation of a self-powered battery is accompanied by chemical reactions taking place inside it. Low ambient temperatures cause these processes to slow down, which can also cause the battery to be connected but not charging. In addition, due to temperature changes, part of the accumulated charge is lost, and if left in a cold environment for a long time, the battery may become completely unusable.
If you come back from severe frost, you connect your phone to the network and it does not start charging, you can bring it back to life using a regular “frog” charger.
Summer heat also has a negative impact on the performance of the battery, reducing the electrical potential of the device. This is due to the fact that high ambient temperatures, combined with heating of parts of portable devices during operation, lead to the so-called critical overheating.
As a result, the electronics of the device may simply not withstand extreme temperatures and fail. Therefore, in order to avoid situations where the battery of your phone or Internet tablet is not charged from the network, you should protect the device from large temperature changes.
Reason #3. Water and condensate
If your device suddenly stops charging, check the battery terminals for any corrosion, such as oxidation. To do this, you need to disassemble the device, remove the battery and clean the terminals with alcohol from any deposits that have formed. It is best to use an old toothbrush with stiff bristles. After this, the battery can be installed in place and its operation can continue. This helps in most cases where the battery is not difficult to access.
But in the case of tablet computers, when the battery is integrated into the body of the device, difficulties may arise without certain experience and knowledge. Therefore, if you are unsure of your abilities, it is recommended not to take risks, but to immediately seek help from a specialized service center, otherwise during the cleaning process you risk causing irreparable damage to the portable device, after which it may be impossible to repair it.
Reason #4. Incorrect battery connection
One of the most common reasons for a battery not charging when plugged in is improper installation. In most cases, the reason for this is haste or human inattention. A battery that is not fully inserted will not interact with the contacts of the device, which will prevent the battery from receiving charge.
It is also worth noting that in the case of mobile phones, some models are able to work stably exclusively with original batteries, without accepting batteries from other phones or non-original batteries. If you recently replaced an autonomous power source in your device and ordered a battery from a third-party manufacturer to save money, then in the future you may have problems with charging it. There is only one way out of this situation - to purchase a branded battery.
Reason #5. Mechanical damage to connecting elements
During operation of the charger, very often its cord becomes bent, which leads to a break in the cable. This not only disrupts the power supply, but can also cause a short circuit. In addition, mechanical damage to the connector and connector of the device can also cause a laptop, smartphone or tablet PC to stop charging from the network. This is an absolutely normal phenomenon caused by careless insertion or removal of the charger plug from the mobile phone socket.
Thus, if you connected your laptop or other device to the network and there was no reaction, then you need to visually inspect the charger plug for mechanical damage. It is also worth noting that if the wire becomes deformed, it is recommended to replace the charger.
Reason #6. Software glitch
Without exception, all modern device models are equipped with special software responsible for graphically indicating the battery charge level. The integrated software has many settings that allow you to configure the battery for optimal operation. However, there are times when the system driver stops working, causing the device to stop charging when plugged in. In other words, the utility responsible for managing the energy-saving system ceases to perform its system functions.
If such a situation occurs in practice, there is no need to panic, since it is very easily resolved. All you need to do is download the new firmware version from the developer’s official website and reinstall the driver on your device. The battery will then return to normal operation. In addition, some manufacturers equip their products with ready-made software with which you can control the operation of an autonomous power source, as well as calibrate it. For example, modern laptop models from the largest manufacturer HP are equipped with such a program that allows you to bring the battery back to life if it fails to charge.
New models of smartphones and Internet tablets also implement a system solution that monitors the device’s energy system. However, in practice, they are not always effective and in order for the battery to start charging again, you will have to completely reinstall the operating system of the device, which is inherently a very labor-intensive process. Therefore, it is recommended to refrain from reflashing yourself and seek help from qualified specialists.
Hot boot function: what is it and what is it for?
If during the operation of your laptop or smartphone you find any malfunctions in the operation of the energy system, then in this case the device has a “hot reboot” or hard reset function, in which all settings are reset to factory settings. This feature is available on all types of portable devices, however, it may vary from model to model. However, in most cases, after performing a hard reset, all problems associated with charging the device usually disappear. It is worth noting that before returning your phone or tablet to its original state, you must copy all information to a removable drive, otherwise it will be irretrievably lost.
A few words in conclusion
Our article has come to its end. From it you learned what can cause such a common problem in which a smartphone, tablet or laptop computer does not charge from the mains and you can easily bring your battery back to life. However, in order to extend the life of the autonomous power supply of your device, it is recommended to follow basic operating rules.
And at the present stage it is used everywhere. Of course, it also needs charging regularly. If you purchase a power bank, how to charge its correct and what is the charging method better - this will always be important to know.
How can you charge a power bank using different methods?
A large number of such portable devices are now being produced. To understand how to charge correctly power bank of this or that model, you need to carefully read the . Please note that different models charging with certain features and nuances.
The most popular method is charge power bank just from the network. In order to connect power bank to the network, it is possible to use telephone chargers. Considering that the average time during which the device will be fully charged is 4-5 hours, it is better to leave it online at night and turn it off in the morning.
Sometimes novice users ask, Which The best charging method is network or using USB -cord from the computer? Any direct connection to the network will help “power” your device much faster than USB -port. Although practice shows that for many, connecting a power to a computer is much faster and easier. To charge the power bank from a PC, you just need to connect the supplied cord to the computer.
As for the popular question about whether it is possible charge the device in the sun - You should not make such mistakes if your power is not equipped with a solar battery. Such devices can be found on sale, but they are not cheap and are much less common than standard models.
If you have a device such as a “cigarette lighter” in your car, it is possible to directly power your power. In this case, charging occurs when the car starts moving. By the way, there is another method that for some reason is still not very actively used.
You can quickly recharge the power bank from the mobile phone itself - models with the ability to use them as an external battery device have already appeared on sale.
Determining whether the power bank is charged
How to understand that the power bank is charged? Finding out the charging percentage when using standard power supplies is easy thanks to the divisions or numbers that show the quantitative percentage of charge. When power bank fully charged, the indicator light begins to blink, or the number 100 appears on the display (depending on the device model). On simple external batteries everything is much simpler due to the fact that there are only two indicator lights.
When the power bank is fully charged, the system will automatically disconnect it from the mains power.
Power bank charging time
How long does it take to charge a power bank? The average time is 4-5 hours. Although there are already models on sale that require a minimum time of 3.5 hours to fully charge. For example, power bank xiaomi pro capacity of 10,000 mAh (we'll talk about it below). It used to be that the larger the battery capacity, the slower it charges. But now new production technologies make it possible to minimize this disadvantage.
It is recommended to always charge the power to 100%, completely. When this indicator has already been reached, you should not rush to disconnect the device from the network. You need to hold it for about an hour more so that it receives the necessary drip charging using low currents. It is this that contributes to the long-term preservation and maintenance of the maximum level of power bank capacity. By the way, there is a special application on the Internet designed to track the drip charging process. It is suitable for both Android-based smartphones and Apple.
Do I need to charge a new power bank?
There are many different opinions on this matter. Some say that this is not of fundamental importance. However Manufacturers recommend charging a new power bank completely , taking into account the time allotted for “drip” nutrition chargeable low current devices.
Many online sources say that the power banks, which are now supplied with all models of power banks, do not have a “memory effect”. But practice shows that this is not always the case. If you look at it objectively, lithium batteries still have a “memory effect”. But it is less pronounced than with older batteries. Therefore, you should run the new power through several charge-discharge cycles immediately after purchase.
Do not completely and deeply discharge the power bank. : Li-ion batteries are very sensitive to this. Make sure that your device is not discharged more than 10-20%.
A full charge-discharge cycle can be carried out no more than once every two to three months. This will help adjust the operation of the power bank so that the capacity of its batteries is maintained at an optimal level.
Which charger is right for you?
Both manufacturers and experts unanimously agree that for this you should always use only the charger that is suitable for the power, matching its technical characteristics. You should not skimp on chargers and purchase temptingly cheap models that can cause the power bank to fail.
Why is the power bank not charging?
If the power bank is not charging and has stopped working, the reason may be that it is equipped with a controller that is not of very high quality. There can be two options here: either the device simply “blinks” but does not work, or the power bank does not turn on - that’s all. What to do in this case and is it possible to fix the power?
If the device stops charging at all and cannot charge even if it is plugged in longer than usual, this means that the controller simply “does not see” the remaining charge level and does not start the battery “to start”. For such a controller, the energy inside the battery simply does not exist.
Therefore, for the future: never discharge “budget” Chinese devices to zero, but make sure that they have at least a minimum amount of charge left. The controller cannot detect the remaining energy level in the battery, so the power bank cannot turn on and function fully.
In this case, there is no point in keeping it on charge for a long time: the controller will still not start it without an additional stimulus. This is precisely the most common reason why the power bank does not charge. This problem can be solved in a simple way: you need to remove the discharged battery from the device and briefly connect the power wires to the contacts. It is necessary for the battery to be charged “directly” a little. This energy is quite enough to “launch” it. And do not be afraid that this method will render the battery unusable. Practice shows that many power sources that were charged in this way did not fail and even began to work better.
If you don’t have suitable wires at hand, but have an unnecessary electronic lighter, you can borrow the wires from it after tinning them first. Then the power body is carefully disassembled with a knife, and the battery itself is removed. You don’t have to touch the board; handle it as carefully as possible so as not to damage it. Connect the wires to the contacts, and the power source can be a new AA battery, to which the wires are actually connected.
Keep the power bank battery on such an impromptu charge for thirty minutes. After this, the controller should “see” the charge of the battery. When this happens, proceed to charge the device as usual. You can put the case back together using simple superglue.
Power bank model from Xiaomi: breakthrough in charging time
Not long ago, a new power bank from the famous Chinese company Xiaomi was released, which can be charged in no more than 3.5 hours. At the same time, its declared capacity is 10,000 mAh. This device has a universal cable with which you can properly charge not only the X itself. iaomi power bank pro, but also any other gadget suitable for it. This power supply supports fast charging function, or fast charge 2nd generation. He not only fast charges the gadget connected to it, but also charges itself. This is how the entire power bank is charged in 3.5 hours.
A universal cable with which you can charge the power bank itself, has the ability to connect to type C- port, network or computer. If you need to charge any device that has a Type C port, insert this port into USB power bank - and charge it. In case you need to charge a device with micro USB-output, but there is no cable from it, just remove the large attachment and get micro USB-adapter. When purchasing such a power supply, we purchase a universal cable with an adapter, as well as an automatic voltage selection function.
Progress does not stand still. There are Xiaomi power banks with much larger capacities.
Thus, if you have a power bank, how to charge it is correct and how much time is needed for this becomes quite clear, and the appearance on the market of new, more “advanced” models can significantly reduce the actual charging time - if the device has significant indicators of actual capacity. In order to carry out the charging process correctly, do not forget to use the recommendations that the manufacturer always gives in the attached instructions.
Power banks or external batteries are actively coming into our lives so that your favorite gadgets remain charged, but in reality we often receive a lot of negative reviews “Power bank charges the smartphone slowly” or “Power bank charges only when turned off”, we’ll figure out why this happens In this article.
Power banks (external battery, external battery) began to appear abundantly around the beginning of 2012, after the Android and iOS operating systems became more mature and could offer users full-fledged business and multimedia tools, but alas, the installed batteries in smartphones and tablets left much to be desired The best thing is that the devices barely survived until the end of the working day, and with active use until noon.
With the advent of the Power bank, the situation changed qualitatively, the device could be charged at any time, without having a socket at hand, but everything did not go as smoothly as desired, many users of portable chargers began to complain, the devices charged extremely slowly, or were charged only when turned off or even worse, the charge remained at the same level as before connecting the external battery.
Why does the Power bank charge slowly or does not charge the phone completely?
So, why is Power bank so bad at charging your mobile devices? There may be several reasons for this, let’s deal with them in order.
Poor power bank controller and small capacity
If you bought a power bank at the market or on the subway, then it is possible that you were given a device with a very poor charge controller and the declared capacity (indicated as 20,000 mAh, but in fact 3000 mAh) is much lower than stated.
What does this mean to you? This means that with a bad controller, the Power bank cannot supply all the necessary current, and if more than one device is connected to the external battery, then it may even burn out. The small capacity of the Powerbank will limit your ability to fully charge your smartphone, tablet, or laptop.
Output voltage
In one of the previous articles, we wrote about what you need to know about, but many phones and tablets have a fairly capacious battery of 3500 or more milliamps.
If the power bank produces current about 500 mAh or 1A, then fully charge the gadget with capacious battery If you don't succeed, you need to buy an external battery that provides an output current of at least 1.5 A or higher.
Connecting wires
And now about the most important thing, the wire running from the Power bank to your smartphone or tablet, which supplies charge to your device, is often not capable of transmitting all the “power”.
The fact is that certain wires greatly reduce the strength (A) and voltage (V) of the current, which increases the time the phone spends charging.
All you need to do is go to the store and buy another quality wire. You will immediately notice that with the new cable the charging process will be much better than before.
Conclusions if the bank is slow
charges the phone
- Do not buy power banks of dubious quality
- The more current the power bank produces, mAh or A, the better
- A poor quality wire can significantly degrade charging speed.
Power bank is not charging
or it charges very slowly / what should I do if the power bank discharges quickly?
If you carefully read the previous part of the article, then all the questions should have disappeared, but we will still list them once again:
- The controller on the powerbank burned out
- Very low power charger
- The charging cable is of poor quality, as a result of which it does not provide the necessary charge to the power bank
- The power bank has lost its former capacity, or the volume was initially less than stated
As a rule, power banks are equipped with very bad wires, and old phones are equipped with not very powerful chargers, as a result of which the power bank does not charge or charges very slowly!
That's all! Read more articles and instructions in the section. Stay with the site, it will be even more interesting!
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