External battery does not charge a working phone. Power bank slowly charges the smartphone (charges only when turned off)

We live in an era of high technological 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 a luxury item and are an integral part of our lives.

In turn, manufacturing companies are constantly improving their products, striving to create perfect models that combine high performance, compact size and long life. battery life. For example, modern smartphone models are not inferior in their functionality to desktop computers. Recent dreams of holding the whole world at your fingertips have come true today.

However, despite the excellent specifications and high performance of modern models of laptops, Internet tablets and mobile phones, there are still big gaps in the production of power supplies. Very often, users are faced with a problem when their device is connected to the network, however, the charging process is not in progress. In this situation, many people think that they cannot do without the help of professionals and turn to service centers. However, you can deal with this problem yourself. You will learn what to do if your device stops charging in this article.

Causes of the malfunction

Autonomy is one of key benefits portable devices achieved thanks to the built-in battery. Failure to comply with the operating rules prescribed in the technical documentation for the device can lead to failure of the autonomous battery. Therefore, to prolong the life of the battery, it is necessary to carry out the correct charge/discharge cycles.

In most cases, the fault for the fact that the battery is not charging from the network lies with the owner of the device. As an exception, the cause of a malfunction of the electrical system of the device may be a factory defect, but such cases in practice are extremely rare. 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 laptops, smartphones, tablet PCs and other devices equipped with a built-in battery.

It should be noted that regardless of the similar principle of operation, 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 the working capacity and the possibility of autonomous operation of your device, you need to have an idea of ​​​​what reasons caused the device to fail, and also be able to correctly diagnose the device.

Reason #1. Uncalibrated battery

Most modern devices Lithium-ion batteries without memory function are used. In other words, at any time you can recharge them without waiting until the charge level drops to the recommended 20%. A special controller is responsible for the operation of a portable device, the failure of which can lead to the fact that the battery will not charge when the device is connected to the network.

In this situation, battery calibration can help solve the problem, aimed at optimizing the operation of all battery cells, and will also allow the device to obtain real information about the battery level. In addition, several full cycles of charging / discharging the battery can return the battery to the ability to charge from the network.

Reason number 2. Temperature regime

The process of battery operation 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 with a long stay in a cold environment, the battery may even become unusable.

If, having come from a severe frost, you connected the phone to the network and it did not start charging, you can bring it back to life using the usual “frog” charging.
Summer heat also has a negative impact on the performance of an autonomous battery, reducing the electrical potential of the device. This is due to the fact that high ambient temperatures, combined with the 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 when the battery of your phone or Internet tablet is not charging from the network, it is worth protecting the device above from large temperature fluctuations.

Reason number 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 the resulting plaque. In this case, it is best to use an old toothbrush with hard bristles. After that, the battery can be installed in place and continue its operation. This helps in most cases where access to the battery is easy.

But in the case of tablet computers when the battery is integrated into the body of the device, without some experience and knowledge, difficulties may arise. Therefore, if you are unsure of your abilities, it is recommended not to take risks, but immediately seek help from a specialized service center, v otherwise during the cleaning process, you risk irreparable damage to the portable device, after which it may not be possible to repair it.

Reason number 4. Wrong battery connection

One of the most common reasons for a battery not charging when connected to the mains is its incorrect installation. In most cases, the reason for this is haste or human carelessness. An incompletely inserted battery will not interact with the contacts of the device, which will make it impossible for the battery to charge.

It should also be noted that in the case of mobile phones, some models are able to work stably exclusively with native batteries, without accepting batteries from other phones or non-original batteries. If you have recently replaced your device with an autonomous power source and ordered a battery from a third-party manufacturer to save money, then in the future you may experience problems with charging it. There is only one way out of this situation - to purchase a branded battery.

Reason number 5. Mechanical damage to the connecting elements

During the operation of the charger, very often its cord is bent, which leads to a cable break. This not only interrupts the power supply, but can also cause a short circuit. In addition, mechanical damage to the connector and device connector can also cause a laptop, smartphone or tablet PC to stop charging from the network. This is a completely 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 memory plug for mechanical damage. It is also worth noting that in case of wire deformation, it is recommended to replace Charger.

Reason number 6. Software failure

Absolutely all, without exception, modern device models are equipped with special software responsible for graphical indication of the battery charge level. Integrated software has many settings that allow you to configure the battery for optimal performance. 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 has occurred in practice, you should not panic, because it is very easily solved. All you need is to download from the official website of the developer new version firmware and reinstall the driver on your device. The battery will then return to its normal operation. In addition, some manufacturers equip their products with off-the-shelf software that can be used to 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 refuses to charge.

In new models of smartphones and Internet tablets, it is also implemented system solution A that monitors the power system of the device. 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 time-consuming process. Therefore, it is recommended to refrain from self-flashing and seek help from qualified specialists.

Hot Reboot: What is it and what is it for?

If during the operation of a laptop or smartphone you find any malfunctions in the operation of the energy system, then in this case the device has a “hot reboot” function or hard reset, which resets all settings to factory defaults. This function is available in all types of portable devices, however, its implementation in different models may differ. However, in most cases, after performing a hard reset, all problems associated with charging the device, as a rule, disappear. It is worth noting that before returning your phone or tablet to its original state, you must copy all the information to removable storage, otherwise it will be irretrievably lost.

A few words in conclusion

And so our article has come to an end. From it, you learned what can cause such a common problem in which a smartphone, tablet or laptop does not charge from the network and you can easily bring your battery back to life. However, in order to prolong the life of the autonomous power supply of your device, it is recommended to observe elementary rules operation.

Which of your gadgets is more useful and more important than all the others? Telephone? Ultrabook? Tablet?
Or a modest, inconspicuous, but irreplaceable external battery, without which all these devices are just dumb boxes made of plastic and metal?

Everyone will surely remember a dozen cases when they prayed to all known gods so that the charge in the phone was enough for one more, very important call, or reduced the brightness of the smartphone screen to the limit so that the device would “last” until the end of the day.

Today, when many users have not one, but two or three mobile devices in their hands, the problem of nutrition has become extremely relevant. And therefore the closest electronic friend of the user is external charging or power bank.

Over the past two years, thousands of models of universal external batteries have literally flooded the market, and it is very difficult to understand them. What should you pay attention to when choosing and buying?

Capacity

Battery capacity is measured in milliamp-hours (mAh or mAh) and is usually explicitly stated on the packaging and/or case. Larger batteries are larger and more expensive and are suitable for charging multiple devices. But what do the numbers 2000 or 13000 mean, and how to determine the necessary and sufficient minimum to fit into the budget?

To begin with, do not forget that the efficiency of the battery is not 100%, but 80-90%, the rest is lost during transmission or converted into heat. (The same applies to the battery of the device itself.) When charging a smartphone through a power bank, you will lose energy anyway. To guarantee a charge for an iPhone X with a 2716 mAh battery, you'll need a battery labeled at least 3000 mAh. But how to make a more accurate calculation?

Let's look at the device settings. Typically, a phone or tablet battery has a voltage of 3.7 V, the same voltage as a battery battery. The battery converter boosts it to standard value 5 V, and when the current enters the phone, the voltage is again reduced by the built-in converter to 3.7 V. The usable capacity during the charging process here depends only on the overall efficiency of both converters.

External battery capacity when charging a phone with an operating voltage of 3.7 V = battery capacity x efficiency

Most responsible manufacturers have been able to effectively increase the efficiency of Lithium Polymer (Li-Pol) flat batteries to around 87–90% in recent years. So, for an external battery marked 10000 mAh, efficiency 90%, battery voltage 3.7 V and output voltage 5 V, the real capacity will be: 10000 mAh x 0.9 = 9000 mAh. The difference of 1000 mAh between the declared and real capacities it is easy to feel: both devices will heat up during charging.

For devices with a higher operating voltage than the phone's battery (for example, a USB lamp or a keyboard vacuum cleaner), the battery capacity will be significantly lower than the declared one. It can be calculated using the formula (battery voltage x battery capacity) x efficiency ÷ output voltage. For the same battery marked 10000 mAh, efficiency 90% and battery voltage 3.7 V, after bringing the current to 5 V at the output of the converter, the capacity will be: 3.7 V x 10000 mAh) x 0.9 ÷ 5 V = 6660 mAh .

Not so long ago, individual manufacturers of external batteries began to indicate the capacity in watt-hours (Wh), for example, 37 Wh for the battery discussed above with the usual marking of 10,000 mAh.

Thus, from a 10,000 mAh battery with an output current of 2 A, a 9,000 mAh tablet battery will be fully charged in 4.5 hours. But a 10 W USB lamp with an operating voltage of 5 V at a current of 2 A can only shine for 3 hours and 20 minutes.

There are also situations when the marking of the device is corny not true. The battery, which indicates the capacity of 15600 mAh, sometimes in reality gives no more than 1500 mAh. This usually happens with devices from unscrupulous manufacturers - in order to reduce the cost of the product, they can use the most junk batteries, for example, previously used and exhausted. Such devices are, among other things, unsafe to operate.

The actual capacity of the battery cannot be quickly checked at the time of purchase or immediately after it. As a result, you can only rely on the decency of the seller: serious suppliers work only with reliable manufacturers and do not deceive their customers.

Current strength

Another parameter that is often labeled with a universal battery case and which you should pay attention to is the current strength at the connectors from which devices are charged. It depends on the charging speed, and certain devices sometimes require compliance with specific parameters.

If the output connector supplies a current of 1 A (or 1000 mA), it will be enough to charge a regular smartphone. The tablet will require a current of 1.5-2 A, and the iPad - 2.1 A. For those who use several devices at the same time, a more capacious battery with two connectors, with more and less current, is suitable.

Battery type and safety of use

In external chargers, as a rule, lithium-ion (the most famous of them are cylindrical 18650) and lithium-polymer batteries are used. These are modern high-tech batteries that have a number of advantages.

• High capacity.
• No memory effect.
• Wide operating temperature range.

Lithium-ion batteries are produced on automated lines and are generally more reliable than lithium polymer batteries, which are often hand-assembled and have fewer charge-discharge cycles. Lithium polymer batteries, however, have a higher capacity, can be ultra-thin and are available in various forms.

Even serviceable and high-quality lithium batteries do not tolerate high (over 40 ºС) temperatures, so they are not recommended to be placed in direct sunlight or left in a car in a sun-drenched parking lot.

But worst of all things are with low-quality batteries. Old batteries get hotter and can cause a fire. Poor-quality boards and controllers cause device malfunctions, which again leads to fires and sometimes explosions. Try to ensure that your desire to save money on a purchase does not lead to tragic consequences.

Universal external battery as a business gift

Humanity in the 21st century is rapidly becoming more and more mobile.

power bank or an external battery is actively coming into our lives so that your favorite gadgets remain in a charged state, but in fact we often get a lot of negative feedback “Power bank slowly charges a smartphone” or “Power bank only charges when it is turned off”, why this happens, we understand this article.

Power bank (external battery, external battery) began to appear abundantly around the beginning of 2012, after the operating Android systems and iOS, 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 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 an outlet at hand, but everything did not go as smoothly as desired, many users of portable chargers began to complain, the devices were charging extremely slowly, or they were charging only in the off state or even worse, the charge was kept at the same level as before the external battery was connected.

Why does the Power bank charge slowly or not fully charge the phone?

And so, why does the Power bank charge your mobile devices so badly? There can be several reasons for this, we will deal with them in order.

Bad power bank controller and small capacity

If you bought a power bank on the market or on the subway, then it is possible that you were slipped a device with a very bad charge controller and the declared capacity (20,000 mAh is indicated, but in fact 3000 mAh) is much lower than the declared one.

What does this mean for you? This means that with a bad controller, the Power bank cannot deliver all the necessary current, and if more than one device is connected to an external battery, then it can even burn out. The small capacity of the Powerbank will limit you in the amount of a full charge of a smartphone, tablet, or laptop.

Output voltage

In one of the previous articles, we wrote about what you need to know about, and so many phones and tablets have a fairly capacious battery of 3500 or more milliamps.

If the power bank gives out current about 500mAh or 1A, then fully charge the gadget with capacious battery If you can't, you'll need to buy an external battery that provides at least 1.5A output current or more.

Connecting wires

And now about the most important thing, the wire going from the Power bank to your smartphone or tablet, with the help of which the charge is supplied to your device, is often not able to transfer all the “power”.

The fact is that certain wires greatly cut the power (A) and voltage (V) of the current, which increases the time the phone is charged.

All you need is just to 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 it was before.

Conclusions if the bank is slow
charges the phone

1. Do not buy power banks of dubious quality
2. The more the power bank gives out current, mAh or A, the better
3. Poor quality wire can significantly degrade charging speed

Power bank not charging
or charging very slowly / what to do if the power bank is quickly discharged?

If you carefully read the previous part of the article, then all the questions should have disappeared, but still we list it again:

1. The controller on the powerbank burned out
2. Very weak charger
3. The charging cable is of poor quality, as a result of which it does not issue necessary charge to the power bank
4. The power bank has lost its former capacity, or initially the volume was less than declared

As a rule, power banks are equipped with very bad wires, and old phones 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!

So finally you have mobile charger (Power Bank).

Congratulations! Buy Power Bank in Ukraine- very correct decision!

(If you are only thinking about such a purchase - in which you will order)

Of course, you would like the charger to last as long as possible and please your gadgets with eternal "online". To do this, you need to know some features of Li-Ion batteries and follow a few simple rules usage:

1. After purchasing an external battery, fully charge it immediately.

The ideal charging process (both PowerBank and the battery of your phone / tablet) includes the so-called "drip" charging - charging the gadget for some time after the indicators show that the device is 100% charged, while the charge continues for a very weak current.

Designed for smartphones and tablets special applications, recognizing "drip" charging:

http://bit.ly/battery-doc - for Android

http://bit.ly/battery-doc2 - for Apple (the application is no longer available in the AppStore)

Previously, in order to find out when the “drip” charging was over, you needed special measuring equipment (ammeter, voltmeter - tester). A rather narrow circle of radio amateurs knows how all this equipment works, and not everyone wants to delve into all these details (even for the sake of increasing battery life).

That is why they have become such a joyful and saving novelty for everyone.

With this little device, you can see not only the voltage and current, but also the amount of Ah (ampere per hour - the unit of capacity for all batteries) that has passed through USB tester. Therefore, you will always know what condition the battery of your phone, tablet is in or, since we are talking about Power Bank, power bank capacity.

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Usually power bank charging goes with a current of 1-1.5A. The closer to the end of charging, the lower the number of amperes. "Drip" charging is 0.1-0.05A. In order for your battery to have maximum capacity for as long as possible, wait for the "drip" charging to finish. As soon as your USB tester will show 0.00A - charging is fully completed and the device can be disconnected from the network.

2. In order for your Power Bank to gain its maximum capacity, you need to make 2-3 full charge / discharge cycles.

Also, if in the future the Power Bank began to discharge faster than usual, it is worth repeating this cycle of 2-3 repetitions and thereby rewriting the battery statistics.

3. ALWAYS charge Li-Ion batteries up to 100%!

Try to never stop charging ahead of time - only after the battery is 100% charged. Yes, many will say that "modern Li-Ion batteries do not have a" memory effect ". Yes, manufacturers also claim this. But, based on our practice and experience, this is not entirely true: in Li-Ion batteries this effect is much less, but still present (this also applies to phones and any other gadgets).

4. Do not discharge the PowerBank completely (to 0%)

Modern Li-Ion batteries that come with mobile batteries do not require it. Moreover, their constant discharge to 0% reduces the service life. Charge the Power Bank when it still has 10-20% charge.

In external chargers with a percentage indication of the discharge / charge level, it is very easy to find out, in devices with LED indication - you have to do it “by eye”.

(devices with % indication you can find )

5. This point contradicts the previous one, but nevertheless it is also very important: from time to time completely discharge the battery (every 1-3 months).

This allows you to reset the charge limits (upper and lower - to calibrate the Power Bank).

6. If you do not plan to use the external battery for a long time, discharge it by about half.

Storing a fully charged (as well as a fully discharged) battery is very harmful to it and will significantly shorten its life.

7. Use only original mains chargers or those that have the required characteristics (if power bank recommend charging with a current of 2A, then use a charger that gives 2A).

O network adapters worth mentioning separately: they are in real trouble. Finding one that produces the declared current is a very difficult task. Even buying an expensive adapter in company store, very often you will get the output not 1A, but 0.5A. And this is half the trouble (just your phone / tablet will charge 2-4 times longer). Much worse, if in fact it produces much more current and does not smooth out significant voltage surges - this can already greatly reduce the battery life of your gadget, and sometimes even lead to its failure.

The problem is that if you don't have a USB tester, there's no way to know if your charging is normal or not. The phone is charging - everything seems to be in order. This is exactly what unscrupulous manufacturers and sellers are counting on (the same can be said about cables - even if charging gives out 1A, a poor-quality cable can lose up to 80% of the current, and you, again, will not know about it without a tester).

That is why we almost always recommend our customers to order a USB tester immediately. This purchase will pay for it more than once! Here you will find various : more expensive and cheaper, more and less informative. But whichever you choose, it will be one of your most useful and smart purchases!

Speaking of network chargers:

for a long time we did not sell them at all precisely because of this: we could not find a reliable supplier who had good and (very importantly) constant quality. However, buyers constantly asked, and we did not stop looking. After many test purchases, I managed to find it. Now you will find many high quality original chargers . Among them -

8. Avoid overheating PowerBank - both during charging and from external factors (heating battery, direct sunlight, etc.)

If you do not neglect these tips, your Powerbank (as well as any other device) will serve you for a long time and properly.

Who has not encountered a problem when the phone refuses to charge properly? Yes, you can quickly order a new electrical adapter for your smartphone or replace the battery - but first it's better to try to "repair" the smartphone yourself. Bayon considered the most common problems with the power supply of phones and tablets, and most importantly, he found ways to quickly solve some of them.

Before starting the “repair”, you should test this adapter / cable on another device. If another gadget is charging, then the reason lies in the smartphone, and not in the charger.

What is the problem with recharging?

The first step in “treating” charging a smartphone is diagnosing the problem. The reason can only come from some nodes. Main question How exactly is it not charging? mobile device: Does it store electricity at all, or is the charging process extremely slow? So much so that connecting to a power source barely covers the current battery drain? This also happens - and quite often.

Self repair USB ports

A quick, easy, and often the most successful solution is a small do-it-yourself hardware repair. Common cause lack of smartphone battery charge - poor contacts of metal parts inside the USB or microUSB ports. This happens either due to a manufacturing defect, or due to the frequent (un-)connection of the cable.

Everything you need to fix your smartphone yourself:

• Turn off device
• Remove the battery (if provided by the design)
• Using a small object (like a toothpick), try to "lift" the small fastener inside USB port on a smartphone or tablet. This should be done with all caution and care.
• After this procedure, you need to replace the battery and turn on the gadget again. The method works 9 times out of 10

Cable replacement

The thinnest (and therefore fragile) part of the charger is the wire, not the adapter that plugs into a wall outlet. If there are problems with charging the battery even after the previous repair-"surgical" operation, the second most likely cause of the problem is a faulty wire. Before running to a nearby store to replace the entire adapter, try replacing the “dead” wire with a cable from another, donor device. An electric cable is indeed a delicate substance, and yet it is twisted, pulled together and mocked in other ways several times a day.

If the problem is not in the wire, then you should take a look at the adapter that is inserted into the outlet: there are breakdowns inside it. The iPhone's proprietary charging interface, the Lightning port, is particularly notorious for its glitches.

There are a huge number of different USB cables on Bayonne: "delicious" prices and free shipping in the shortest possible time!

Contact stripping

There is no need to delete acquaintances from the address book - we are talking about metal contacts through which an electric current passes inside the phone. The reason for poor contact may be motes, pellets from the fabric of the pocket, or fragments of some parts stuck inside the ports. Dust and other debris likes to accumulate in such nooks and crannies. Cleaning the contacts inside the port sometimes helps to return the smartphone to operational state and "feed" it with a portion of the charge.

By the way, let's take a break from repair worries. There is a wise rule of prevention: never charge your phone near a water source, or in a particularly humid and hot environment. You should not “overfeed” the smartphone with an extra charge: as a rule, it takes only 2-3 hours to charge. If you overexpose the device connected to the outlet (for example, at night while sleeping), then there is a risk of damage to the battery up to its explosion. There are also overheating of delicate metal contacts and their fusion with a plastic base. Of course, phones have protection mechanisms against short circuits and other near-electric troubles, but sometimes they don't work. It's better not to risk than to be sorry. And even more so - than to “fry” your favorite gadget.

Bad breakdown. The cause of combustion may be manufacturing defects, too long charging process, subtle debris inside the port, or aggressive environment.

Battery replacement

When the device is not the first "youth", it becomes increasingly difficult for its battery to hold a charge. A new battery lasts about two years before it needs to be replaced. However, this period seriously depends on the number of discharge cycles. But if the moment comes too early, when the battery seems empty even with a long charge, you should look at the manufacturer's warranty: it is quite possible and free replacement batteries.

There are also initially defective batteries. Open the back cover and take a look (or better, feel) the surface of the battery. If any deformation or swelling is found, the battery must be replaced immediately, otherwise corrosion cannot be avoided. When non-removable battery there is another, funny way to check for marriage. Lay the phone on a flat table surface and try to spin it around its axis. A phone with a problem battery will spin due to swelling. The method is not suitable for devices whose surface is specially curved for the sake of design tricks.

If a damaged battery is found, replace it with a battery recommended by the manufacturer. Batteries from third-party manufacturers, judging by Bayon's experience, cost less, but they also cause much more problems, without paying for themselves.

A selection of Bayon smartphones with a powerful battery:

Put your phone against the wall!

No, not for shooting a recalcitrant gadget. The point is that charging devices from conventional wall outlets is a more efficient process than from a computer or laptop. Connecting to a power outlet in some cases supplies the phone with twice as much electricity as in the case of a computer USB port.

Another reason for insufficient current supply is the use of a non-native adapter and / or wire, i.e. from a third-party manufacturer. In such cases, it is possible that the phone really does not have enough current strength or power to charge properly. No computer or laptop can charge a phone as quickly as a good old wall outlet.

On the Bayon store window there is a large collection of "charges" for a variety of gadgets:

Updating or Rolling Back Software to Resolve Charging Issues

A cruel joke with the battery can be played by app updates or even fresh android firmware. Especially often this happens with older devices when switching to a newer version of the OS. Fresh gadgets are better optimized for more modern versions OS: they are equipped with more capacious batteries, the software is better suited for their "iron" component. While even a two-year-old smartphone may not be able to cope with the increased load on it.

If a sharp drop in energy efficiency occurred as a result of an OS update, then you should roll back to previous version Android. Keep in mind that rollback to old version- a somewhat risky operation, especially in terms of data security.

But it also happens the other way around, when new versions of software discourage phones and tablets from exorbitant appetite for battery life. Among recent notable examples of this nature are " smart watch» Moto 360. After the release of the latest firmware for this gadget, users have noticed that the operating time has increased by almost 1.5–2 times.

Turn off your phone

If resource-intensive applications (or services) are running on the phone during charging, the process can take several times. Particularly famous for the increased appetite of the game, VoIP programs like Skype in video / voice mode, twisting the brightness settings to the maximum, intensive browser work, connecting to WiFi networks and 4G. For fast charging such networks should be completely shut down. Even better, switch your phone to airplane mode. But no way to speed up the charging of the phone will not help as dramatically as complete shutdown devices.

Battery calibration

Smartphones - "smart" phones and their batteries consider themselves "smart", sometimes - completely unjustifiably. It happens that the battery erroneously sends operating system a signal that the charge in it is less than it really is. As a result, situations are quite possible when the phone turns off, being sure that it has no more than 2-3% of the charge in reserve, although in reality there is much more electricity.

Battery calibration in Android devices is a topic for a separate large article. In some cases, this “training” of the battery in its own capabilities can solve the problem of early discharge of the phone. Try this before replacing the battery with a new one.

Finally

The favorite and first question of the manufacturer's technical support staff: are you sure that there is current in the outlet? This question sounds strange - we agree. But in practice, it very, very often happens that there really is no voltage in the outlet (or USB port of the computer) to which the smartphone charger is connected.

If none of the methods helped (and this is a rare situation!), then the smartphone charger should be changed to a workable one.

Tablets and laptops with a powerful battery, which you can purchase in our online store:

You should buy new batteries and accumulators only from time-tested sellers. Our counter of batteries and chargers for phones and tablets - a selection of quality accessories