Why doesn't the power bank charge? Power bank is not charging - what to do. Reaching the maximum capacity

Power bank or external battery actively come 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 it’s 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 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 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 Power bank charge slowly?

So, why does Power bank charge your batteries so poorly? 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 can generally burn out, but the capacity depends on how much you can charge your smartphone or tablet.

Output voltage

In one of the previous articles we wrote about what you need to know about, but many phones and tablets have quite capacious battery from 3500 or more milliamps, if the power bank produces a current of about 500 mAh or 1A, then you will not be able to fully charge the gadget; 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 that goes from the Power bank to your smartphone or tablet, which supplies charge to your device, is often very thin and this is very, very bad, not to say terrible.

The fact is that a thin wire greatly reduces the strength (A) and voltage (V) of the current, which negatively affects the charging speed; all you need to do is go to the store and buy another high-quality and thick wire. You will immediately notice that with the new cable the charging process will be much better than before.

conclusions

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

That's all! Read more articles and instructions in the section. Stay with the site, it will be even more interesting!

A power bank is a device used to charge gadgets when there is no power supply. Their connection occurs via a wire connected through the built-in USB port. However, in order to give charge to other devices, the Power Bank itself must first be charged.

Basic ways to charge Power Bank

About to purchase this device, you should ask how to charge this specific model and how to use it correctly. Despite the ease of operation, any model may have some differences and nuances. In order for the device to last a long time, you need to learn how to properly charge the Power Bank portable charger by looking at the instructions.

From a 220V outlet

The main question that interests buyers is whether it is possible to charge a power bank using electricity, because this charging method is the most convenient and familiar. To do this, you will need to purchase a network adapter - you need to buy it separately; it is not included in the Power Bank package.

Since the external battery is designed for smartphones, it is logical to use a telephone charger for charging from the network. Given that the standard charging time for an external battery with a capacity of 4000 mah - 5000 mah is 4-5 hours, it is most convenient to plug it into the network at night. Charging from the network is much faster than via a USB port.

From computer via USB

The simplest option that makes it convenient for every user to charge a Power Bank is a computer. To do this, you just need to connect it to a working device using a cable via a USB connector. Charging occurs during its operation unnoticed by the owner.

From the energy of the sun

Many users are interested in whether it is possible to charge a power bank in the sun. This is the most economical and inexpensive way - you just need to place the device in the sun. However, it is only suitable for those external batteries that have a solar panel.

From car cigarette lighter and other devices

Users are interested in the question of whether it is possible to charge from an outlet in the car. Car enthusiasts who have a cigarette lighter in their car can charge the Power Bank while the car is moving. Another way to charge is from mobile phone. Mobile gadgets have appeared on the market that also serve as an external battery.

How do you know if the external battery is charged?

How do you know if the power bank is charged? The standard device has 4 divisions indicating the amount of charge - 25%, 50%, 75%, 100%. The last indicator blinks when the battery is fully charged. However, the simplest budget models may have one or two indicators. When fully charged, the system will turn off the device automatically - there is no need to monitor the charge.

How long does it take to charge a Power Bank?

The time directly depends on two factors: battery capacity and charging method. The standard 5000 mAh capacity when connected to the network will require 5 hours to be fully saturated. If the capacity is twice as large, the time required for charging will also increase. Other methods take much longer; you can only find out how much you need to charge a power bank from a computer or car cigarette lighter by trial and error. The solar-powered device takes the longest to take energy out of thin air.

Features of charging Power Bank

The device must be charged until it is fully, 100% charged. However, when this indicator is reached, you should not rush to turn it off - experts recommend leaving it on for about another hour. At this time, “drip charging” occurs with a weak current, allowing you to maintain the maximum battery capacity for as long as possible.

You can track drip charging if you install an application specially created for this purpose - for Android and Apple.

Fully charge after purchase

There are different opinions on how best to charge a power bank after purchase. Some users claim that this moment doesn't matter. Manufacturers recommend that the purchased external charger, regardless of its charge level when purchased, be charged to 100%. It is important not to ignore drip charging.

Several charge/discharge cycles at the beginning of operation

When purchasing a Power Bank, you need to “boost” the battery - completely discharge and charge the battery. The same technique can be used if there is a faster than usual discharge.

3 or 4 full cycles of discharging and charging will rewrite the battery statistics.

Always charge your external battery to 100%

Users and manufacturers unanimously claim that modern Li-Ion batteries do not have the disadvantage of the previous ones - the memory effect. Nevertheless, experience shows that this effect still exists, although it is less pronounced than with other types of batteries. Therefore, charging an external battery can be interrupted only in the most extreme cases, and in other cases, wait until the charge is fully 100% and withstand the trickle charging period.

Why can't you completely discharge the battery?

However, it is not recommended to constantly completely discharge the device to zero - this will shorten the battery life.

You need to charge the battery when the charge level drops to 10-20% charge.

Depending on the model, this can be recognized by the indicators, seen on the screen, or determined by eye by the LED indication.

Sometimes it needs to be discharged

If you do not use the battery for a long time, then...

If you do not plan to use the external charger for a long time, it should be left to “rest” half charged. Full charging and discharging will negatively affect the service life.

Use original chargers

What kind of charger should I use to charge the Power Bank - any or a special one? It is extremely important to use original chargers for this device!

If this is not possible, it is important to choose those that match the characteristics of the Power Bank. Buying cheap accessories can result in expensive gadget repairs.

Avoid overheating the device

It cannot be charged in direct sunlight (except for models with a solar battery). You also need to make sure that it does not lie on the battery or running gadgets, or near a heating radiator.

In order for the Power Bank to serve for a long time, it is important to ensure that it does not overheat.

Conclusion

It is important not to use the Power Bank in the cold - low temperatures significantly reduce the battery capacity. Subject to all operating rules, the external charger can serve its owner long term, for example, such well-known manufacturers as Xiaomi, Yoobao, Pineng provide a guarantee of 500 cycles, which equates to 7-8 years of active use.

Published: 16.08.2017 Category: Author's essay

After reading our review, you probably realized that nothing is impossible. Modern man “feeds” his equipment with energy, being very far from civilization.

However, in every barrel of honey there is a fly in the ointment. A certain drive may not be ideal for some conditions. The case heats up, the power bank takes a long time to charge, disconnects with some gadgets, the power bank does not hold a charge - all these troubles can await the traveler at certain stages of the charger’s operation.

Why does the power bank take a long time to charge?

The problem associated with the fact that the power bank takes a long time to charge is the most common. In order to get rid of it, you need to follow a few simple steps.

Make sure that you insert more powerful equipment not into the phone jack (1A), but into the 2A or 2.4A jack.

After purchasing an external battery, do not be lazy to charge it “to the fullest”, and then completely discharge it using the connected gadgets. This will activate the "stuffing" properly. As for lithium-ion models, 100 percent charging is the only condition for proper operation.

A good speed of the process is achieved only after 3-4 charge-discharge cycles (it is easier to monitor the process in power banks with percentage display; LED devices do not always allow you to correctly determine the “finish”).

Most often, the power bank takes a long time to charge when it’s frosty outside - energy loss occurs with even greater intensity, significantly exceeding the “standby” 20 percent figure.

Why doesn't the power bank hold a charge?

As a rule, the power bank does not hold a charge due to network adapters. Even if you buy a cool adapter in a branded store, more often you will get not 1A, but 0.5A at the output. That's not all (in this case, charging the device will only take a little longer). There is a more terrible consequence when the adapter actually produces much more current or simply does not smooth out voltage surges. This is how innocent gadgets die!

Sometimes the reason is the manufacturer himself. When you remove the “stuffing” from the “masterpiece” of some little-known company, you find disconnected terminals (connecting the internal batteries), as well as disconnected terminals. USB port contacts.

And the power bank does not hold a charge for a number of reasons related to its improper operation - “emergency” insertion of the plug, use of a non-original cord.

Finally, trouble may occur due to natural wear and tear of the connector. Buy a new ROM.

Sometimes the progress of energy replenishment is displayed on the screen of the gadget, but during its use it becomes obvious that the power bank does not hold its charge well - the indicator is sometimes on, sometimes not (the interest also “jumps”). This observation will tell any chemist that the product has been lying around in the warehouse for a long time. The fact is that over time, the lithium-ion filling is increasingly exposed to substances that inhibit chemical reactions. Just keep the charger in the outlet for 12 hours) - not a trace will remain of the hated inhibitors.

Why doesn't the power bank charge the gadget?

If the power bank does not charge the phone, then the problem, of course, is not the power (2000 MAh is enough for a mobile phone). Most likely the cable is faulty. Try another one.

In the case when the power bank does not charge the smartphone, the issue most often concerns the compatibility of its port and driver with the type of charger. A smartphone is a mini-computer controlled by its own operating system. It's up to her to decide who can connect to your device and who can't. Therefore, it makes sense to visit a service workshop.

Power bank does not charge your iPhone, but shows the movement of energy on its panel? This most often happens with Samsung Galaxy. Some models require only one current - 2A (no more and no less). Professionals can solder something on the power bank matrix. The iPhone will now charge.

In nature, it often turns out that the power bank does not charge a flashlight, tablet, camera or camera. What to do in such a situation? In addition to the reasons already described, there is a lack of energy. See how much power your units require. The charged ROM must exceed (or be equal to) this parameter in power. If you spared money and bought a weak device, it will only “steal” energy.

How to avoid future difficulties?

It’s easy to get rid of troubles initially. Already when purchasing a ROM, compare the power of the gadgets and the charger.

And most importantly, focus on time-tested brands. This means those that are “marked” good reviews users. We are talking about the names of large concerns that specialize in the production of this and similar products. In fact, you should purchase a power bank in well-known (preferably mono-brand) stores, and not in “trade shops”.

We can only hope that the information presented here will protect readers from any technical failures during their exciting travels or work expeditions. Now you don't have to think about unworthy things.

So finally you have mobile charger (Power Bank).

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

(If you are just thinking about such a purchase, where will you order)

Of course, you would like the charger to last as long as possible and keep your gadgets happy forever. To do this, you need to know some of the features of Li-Ion batteries and follow a few simple rules of use:

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

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

Special applications have been created for smartphones and tablets that recognize “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, to find out when the “drip” charging was over, you needed special measuring equipment (ammeter, voltmeter - tester). How all this equipment works is known to a rather narrow circle of radio amateurs, and not everyone wants to delve into all these details (even for the sake of increasing the life of the batteries).

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 (amp/hour - the unit of capacity for all batteries) that has passed through USB tester. Therefore, you will always know the condition of the battery of your phone, tablet or, since we are talking about a Power Bank, Power Bank capacity.

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Usually Power Bank charging The current is 1-1.5A. The closer to the end of charging, the lower the number of Amperes. “Drip” charging is 0.1-0.05A. To ensure that your battery has maximum capacity for as long as possible, wait until trickle charging is complete. As soon as your USB tester will show 0.00A - charging is completely completed and the device can be disconnected from the network.

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

Also, if in the future the Power Bank begins 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 to 100%!

Try to never stop charging prematurely - 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 applies to phones and any other gadgets).

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

Modern Li-Ion batteries that come with mobile batteries don't require this. Moreover, their constant discharge to 0% reduces their 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, this is very easy to find out; in devices with LED indication, you will have to do it “by eye”.

(devices with % indication can be found )

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

This allows you to reset the charge limits (upper and lower - 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 completely discharged) battery is very harmful to it and significantly reduces its service life.

7. Use only original mains chargers or those that have the required characteristics (if PowerBank It is recommended to charge with a current of 2A, then use a charger that gives 2A).

It’s worth mentioning separately about network adapters: They're in real trouble. Finding one that produces the declared current is a very difficult task. Even if you buy an expensive adapter in a company store, very often you will get not 1A, but 0.5A at the output. And that’s half the problem (it’s just that your phone/tablet will take 2-4 times longer to charge). It is much worse if in fact it produces a much higher 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, you have no way of knowing whether your charge 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 the charger produces 1A, the cable Bad quality can lose up to 80% of the current, and again, you will have no way of knowing about this without a tester).

This is why we almost always recommend that our clients order a USB tester right away. This purchase will pay for itself more than once! Here you will find various : more expensive and cheaper, more and less informative. But no matter which one you choose, it will be one of the most useful and smartest purchases you make!

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 (which is very important) constant quality. However, customers kept asking, and we never stopped looking. After many test purchases we managed to find it. Now you will find many high-quality original chargers . Among them -

8. Do not allow the PowerBank to overheat - both during charging and from external factors (heating radiator, direct sunlight, etc.)

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

Greetings to all readers of my blog! We continue to disassemble portable batteries. Price 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 get 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. In this case, 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 frequently asked question buyers - 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 and the presence of an additional function fast charging, current strength in the network (more precisely, from 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 the source electric current, 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 months suddenly stop charging? The most common reason, according to service center specialists, there 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 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 coming noticeable loss containers).

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 in in 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.