External battery for phone. Portable chargers for mobile phones

Home / Data Recovery

Today, every person has a smartphone. This rectangular brick has literally conquered the world. The device is quite useful, but unfortunately it lacks autonomy. The phone battery does not last long. Usually after 2-3 years you have to replace the battery. Let's figure out which battery to buy.

Battery for phone and smartphone

Good to know!

Today, many batteries are equipped with a charge controller. This device helps monitor the charge-discharge process. In addition, in the event of an emergency, for example, the battery gets very hot, the controller will turn off the battery. If cooled, the same thing will happen.

How to choose a battery for your phone?

Tips before choosing:

Capacity denomination. The larger it is, the longer the device can work. mah - means capacity in milliamp hours.
Complete match with the old battery. Identical type of previous battery.
Voltage. Usually it comes from 3.7 volts. Some models may have more or less.
The size must match the old battery.
Location of contacts.
What type? Lithium-ion or others.
Before purchasing a battery, look at the technical data sheet of your smartphone. Usually they specify what kind of battery is required.
Price. Sometimes manufacturers mislead consumers. They sell a supposedly high-capacity battery for little money, but at a low cost. Be careful, such batteries are made of poor quality and their capacity is much lower than declared.
Guarantee. Each manufacturer produces their own. The shelf life of a phone battery is on average 1 year. Typically this figure varies from 6 months to 3 years.
It is best to purchase a Li-ion (Have an automatic shutdown when fully charged) or Li-pol battery for your phone.
How many times can you discharge and charge the battery? The most common is 1000 times.
The case, how durable it is. It is desirable that it be aluminum.
Ask the seller if there is protection or a thermostat.

Phone battery life is affected by:

Screen type
Networks: GPS, Wi-fi, 3G, 4G.
Supported Features.
Backlight.
Delivered programs.

Frequent charging of the battery leads to rapid wear!

Phone battery manufacturers

The list below presents popular companies that manufacture batteries for smartphones.

Gigabyte GT
MaxPower
JustMobile
Unitech
Kensington
Batimex
HiCapacity HP
Fonmedia
Cluestar
Ansmann
TelForceOne
Hipower
Cisco
Intermec
Apple
Pulsar
Activejet
Cipher Lab
Prestigio
MyPhone
Belkin
Whiteenergy
Datalogic
Uniross
Honeywell
Fujicell
Extreme
Blackberry
Garmin
Blue Star
Tellsson
Dexim
GSmart
Nokia
Motorola
Samsung
Siemens

Buy lithium-ion or lithium-polymer battery packs. The brand must be famous. Protect the battery from cold and heat. There are no super-capacious batteries at a low price - this is a hoax. Typically the battery lasts about 2 years.

When should you change your phone battery?

With average smartphone use, the battery needs to be changed every 2 years. Usually by this time the charge lasts for a couple of hours. But if you rarely use the phone, then replacement can be done after 3-4 years.

Signs that the battery It's time to change on your phone:

Doesn't hold much charge.
You have to charge it every few hours.
You have to wait more than 3 hours for a charge.
The phone turns off by itself.
The battery is damaged.

Question from a user! Does the age of manufacture of a phone battery matter and does this period affect the quality and service life of the battery?

The timing naturally has an impact. Lithium polymer batteries created in 2018 and sold in 2019 will last 3 years. Nickel cadmium may begin to leak and corrode.

Where do I sell phone batteries?

Most people go to purchase a battery for a smartphone at:

Radio shop and radio markets.
Online store.
Company store.

In the first case, the user will receive a small selection of batteries for the phone. But sellers in such places can give good advice.

The second will have a wide selection. But you should pay attention to the reviews and reliability of the seller.

In the third option, you will receive an expensive battery, but with a guarantee.

How much does a phone battery cost?

The cost of a battery for a mobile phone with an Android on average fluctuates around 1000 rubles.

Can a phone battery explode?

Such a battery causes an explosion in the following cases:

Poorly made.
Does not have a charge controller.
Very worn and swollen.

So be careful!

Where should I throw away my phone battery?

Such batteries must not be thrown into a general trash bin. To get rid of them, you should find a collection point for such batteries and take them there. On at the moment Not all cities have such branches. Perhaps yours has it. The article: “” will help you understand this issue in more detail.

How to reduce battery consumption for your phone?

To do this, follow the tips below:

Reduce display brightness.
After using the Internet, do not forget to turn off data transfer.
It is better to delete or turn off applications that you do not use. Every running application consumes energy.
When you go to bed, either turn off your phone or turn on the “ On the plane».
If there are battery saving settings, turn them on.

How to increase the battery life of your phone?

The battery needs to be charged to 100%.
You shouldn’t use up the entire charge; it’s better to connect it to it at the 35-50% stage.
It is not recommended to leave your phone connected to the network overnight.
After the display shows information that the smartphone is fully charged, turn it off.
Use only the original charger.
Do not charge near heating devices or direct sunlight.
1 time in 30 days costs by full charge and full discharge.

How to store your phone battery?

Types of phone batteries

After analyzing the history of battery development, it turned out that there are only 4 types of phone batteries.

Nickel-cadmium batteries (Ni-Cd)

This type of battery was first manufactured back in 1899. Due to multiple shortcomings, it has not become widespread. Although they are quite strong and durable. Can withstand extremes of high and low temperatures. In addition, they can withstand multiple charging.

The main disadvantage that outweighs all the advantages is their toxicity. Cadmium is a toxic substance. Besides this this type The phone battery has low energy capacity. Production costs are very high. And the periodically manifested memory effect forces you to do it frequently. It's not very convenient.

Nickel metal hydride batteries (Ni-MH)

These batteries are made of nickel. Main positive property is good capacity and low production cost. Previously, this type of battery was used in large budget phones with limited functionality.

Their main disadvantage is the memory effect. You put it on charge at 30% of the battery indicator and after that the phone turns off when it reaches this number. This property is less pronounced than that of the type described above. These batteries also take a long time to charge.

Lithium-ion batteries (Li-Ion)

Today, this type is the most relevant! Their main advantage over competitors:

Compact dimensions.
Big.
Slight self-discharge.
No memory effect.
Show stable performance.

Similar batteries for mobile phones work stably and for a long time.

Among the negative aspects, one can note the high cost, in contrast to nickel batteries. They do not tolerate cold well. At minus 20 0 C there is a risk of electrolyte leakage. These power supplies should not be kept in a discharged state. The service life may be shortened. They are subject to wear and tear regardless of whether they are used or not.

Lithium polymer batteries (Li-Pol)

This removable battery for a smartphone is made using lithium salts and a polymer electrolyte. This approach allows you to create a charging battery for a phone of various shapes. Thinness and ductility are the main features of these batteries.

Pros:

High energy capacity, about the same as lithium-ion internal batteries for phones.
The cost is significantly lower than those described.
Large number of charge/discharge cycles.

Cons:

They operate unstably at low temperatures.
Strong overcharging and deep discharge are harmful. To prevent this, a voltage controller is built in. And this affects the cost of the product.

Reinforced batteries for phones

These models are also called powerful batteries with increased . In contrast, they have compact dimensions. Their dimensions match the original battery of the device. Most often, the devices are made in China or Japan.

The main energy capacity starts from 2450 mAh and ends at 5500 mAh. These battery characteristics allow you to significantly increase the performance of your smartphone! And unleash its full potential.

Main characteristics of batteries for phones

The data in the table will help you choose the right batteries for cell phones.

Phone battery device

Like any other battery, it has a positive and a negative pole. It also has a basis. It contains electrolyte and various chemicals. You can read more about the structure of a phone battery in the article:.

Power bank for phone

Such long-lasting batteries have conquered the consumer market. In fact, these batteries are very convenient. You can go on a trip and not worry about not having an outlet nearby.

The main advantages of Power Bank for the phone

Good durable case.
Large capacity.
The ability to recharge a portable phone battery many times.

How to choose Power bank for your phone?

When buying a travel battery for your phone, pay attention to the following things:

Dimensions. Decide what you are going to use the backup for. If you take it for your phone, then it should easily fit in your pocket, bag or backpack. Please note that the dimensions must be optimal. A 12000 mAh battery will not fit into a miniature case.
The material from which it is made. The metal body is durable, but has a significant weight. Plastic is many times lighter. If the power bank will not be used in extreme conditions, then you can take a plastic one. The stability of operation does not depend on the case.
Capacity. It should be twice the capacity of the installed battery. Naturally, the higher the better. It is advisable to buy an additional 6000 mAh power bank, but if your budget is small then go for 4000 mAh.
Current strength. Batteries usually contain this information on the label. Usually it is 0.5-1 ampere.
Charger. It is better to purchase a device that contains both the ability to recharge from USB and from a wall outlet. This type of USB battery for a phone is called hybrid. Preferably with a current of 1-2 A.
Features such as the presence of a charging indicator, a power button, and the number of USB connectors are selected according to the user’s taste. There is only one benefit from them: convenience.
Make sure that the on/off button is completely immersed in the housing. This will prevent accidental startup.

The portable battery has a voltage of 3.7 volts. Smartphones and others mobile devices require a 5 volt charge. This suggests that there is a loss of energy potential of up to 30%. Cheap Chinese batteries generally have 50% of the declared capacity.

How it works?

A spare storage battery for a phone functions similarly to a simple battery built into a mobile smartphone.

A number of power cells are soldered into the power controller. After that, ports for recharging the battery are built in. Then one or more ports are installed to charge the smartphone.

Connecting Power Bank to the phone, and its battery begins to charge! Electric current flows from the donor to the additional battery of the smartphone.

How much does a power bank cost?

Prices for autonomous battery for a phone depend on the capacity, the larger it is, the higher the cost. For example, a power bank with a capacity of 10,000 mAh can be found for 2,000 rubles. If its capacity is 5,000 mAh, then 1000 – 1500 can be achieved.

Rules for using a power bank battery for a phone

When replacing the external battery with a new one, turn off the power to the device. Otherwise there may be memory distortion.
To expand slightly, perform up to 5 discharge-charge cycles. This means that you need to completely discharge the remote battery and charge it to one hundred percent.
Do not suddenly move a portable phone battery from warm to cold and back. Before charging, let it sit for a while and come to room temperature.
Do not recharge for more than 24 hours. As soon as the battery is charged, a special chip will turn off the charging process.

The most optimal solution purchase Power Bank for 6,000 – 12,000mAh.

External battery for smartphone with solar batteries

Today such a battery is very popular. It will be indispensable on hikes and various outings.

The main characteristics of the average solar battery:

Li-ion type.
Different colors: black, orange, blue, yellow, green, etc.
Capacity 10,000 mAh. It may be less or more.
Output voltage 5 volts.
Current strength is 1-2 A.
Some models have fast wireless charging.
USB port.
Built-in solar panel that allows you to get energy from the sun.
Material: plastic or metal.
Housing protection.
Weight about 300 grams.

These are approximate characteristics of a typical solar power bank.

Thus, a battery charger for a phone will help out a traveler who is far from civilization or in a place where there is no outlet.

Hello friends! Today's topic is relevant for people who are constantly on the move. It doesn't matter if you are a tourist, an athlete or a student. Anyone can find themselves in a situation where, at the most unfortunate moment, they are left without communication. How to prevent this? Today we will talk about how to choose a power bank for your phone and always be within reach. Modern gadgets not only provide a lot of opportunities, but also cause a lot of inconvenience by quickly draining the battery. You will learn at what points when choosing of this device pay attention and what to give preference to.

After reading this article, you can easily choose a reliable assistant. He will give you extra hours mobile communications and the Internet.

In modern society, a person without a smartphone is like without hands. It is difficult to imagine that we could have done without such electronic devices before. People managed to somehow not be late for meetings and, in general, meet! Now it is difficult to imagine how this is possible without communication via smartphone.

He has become so integrated into our lives and accompanies us everywhere. Sometimes solving some problems without it is not possible. Let's say terrain orientation. They cleverly help out with this Google maps. What about a calculator that is always at hand? Application for monitoring health, weight and so on.

People have become too spoiled by technology. When the phone dies, they feel helpless in this world. To avoid this situation, you must have a portable battery with you. Otherwise it is called Power Bank.

A great thing that will save everyone when their battery is running low. will become less tedious if you have a working gadget at hand. With it you can read, listen to music, play games.

What can we say about students? Gadgets are the absolute salvation of young people. And the situation when they sit down before our eyes becomes incredibly stressful, because there is no way to properly charge it. After situations like this, many people purchase this device. It comes in handy when needed, does not require an outlet and is quite compact.

So, this product will be useful to everyone. It will not take up much space, but will bring many conveniences.

How to choose a portable battery for a smartphone

The acquisition of this device makes life much easier for modern people. But so that it does not lose its properties within a month, you should take a high-quality model. Therefore, I will help beginners who do not understand electronics not to “miss” with their purchase.

How not to make a mistake with your choice and what to pay attention to?

Battery capacity

One of the important factors in choosing a device is the capacity, which is expressed in milliamps per hour. You should pay attention to the fact that the capacity of the external battery must be greater than the battery of the gadget being charged (about three times). This is logical if you want to use the charging device repeatedly. Usually the capacity of the Power Bank does not match the specified value. That is, it will not be 100% effective. If it says 5,000 mAh, you will not be able to fully charge your smartphone (2,500 mAh) twice.

For small gadgets, a product up to 10 thousand mAh is suitable.

By carefully studying this information, you will understand which portable battery to choose for your smartphone.

The main thing is not to be fooled by low price. You need to adequately assess the situation and understand that a “powerful” device for little money is unlikely to meet your expectations.

Current strength

When the smartphone battery is low, every user wants it to charge faster. The speed of the process directly depends on the current strength, which is expressed in Amperes (A).

As a rule, smartphones require 1 A. This is what you need to take into account when choosing an external battery. Some models have two USB ports of 1 and 2 A. This option will have a larger volume. Of course, its price will be appropriate.

If the current strength of the power bank is less than that required for a smartphone, then charging will take much longer.

Otherwise, when the current strength is greater than the required value, the smartphone is not at risk. No need to worry about this. Mobile phones have built-in protection that will limit the incoming current to a suitable value. That is, nothing bad will happen to the gadget. But it won’t charge faster either.

Some users choose a Power Bank with one input to save money. This is, let's say, irrational.

But often the “native” charger, powered from an outlet, charges the gadget faster than an external battery. Why is this happening? Surely your phone has a function fast charging. Then you need to find a product model that supports the same technology.

There are universal power banks. According to the manufacturer, they independently determine the brand of the phone when connected and select the appropriate technology. Whether this is true or just another marketing ploy is difficult to say with complete certainty.

Weight and size

The above parameters will let you know which portable battery to choose. But for many, its weight and design are no less important.

The imagination of manufacturers is so vast that you can find a whole range of different Power Banks on store shelves. From large-sized models that will charge a smartphone five times, to miniature ones that can prolong the battery life for a short time. In addition, their colors are suitable for every taste and color. From bright and eye-catching images to calm, traditional tones.

In addition, the product differs in its shape. A particularly practical option is a charging case. It does not take up much space and does not require wires for operation. For some users, this type is much more convenient than traditional power banks. But the fact is that the phone, being in such a case, does not fit so comfortably in the hand. Therefore, this option attracts few.

Additional features

At this point, the preferences of many users differ. Some people love minimalism. They don’t need anything other than the basic property of the product. Others, on the contrary, want to combine everything in one. Which is better? It’s not bad if the selected portable charging model is satisfactory in terms of characteristics and has some useful bells and whistles.

For example, an easy-to-use model that shows the remaining charge using a special indicator. In addition, a flashlight may be useful. In the dark, the battery will not only charge your smartphone, but also illuminate the way.

Another added benefit is the cable comes with different adapters. The point is that charging sockets different phones. And such a device will become a universal option.

In addition, pay attention to how the device itself is charged. The MicroUSB port will allow you to replenish its energy using a regular smartphone charger. But there are also options with built-in solar panels. However, their effectiveness is in doubt.

The main thing is not to look for a device that combines all possible functions and is inexpensive. As a rule, it is of low quality.

Best models Power Bank

An excellent choice for lovers of rigor. Stylish black design and ultra-thin body will suit everyone's taste. The battery has a capacity of 10,000 mAh. In addition, it has two inputs for charging gadgets with different current strengths of 1 and 2 A. The device can easily fit into your bag. And if necessary, it will charge not only your smartphone, but also your friend’s gadget.

A small external battery (3,000 mAh) will perfectly help you out at school or work. If your smartphone dies at the end of the day and you need to make an important call, this thing will save you. This Power Bank has one USB port. The interesting shape of the product is presented in traditional black and white colors. A good and economical option for people who are not travelers and are not constantly on the move.

Price: 650 - 737 rub.

Power Bank with a high capacity of 20,000 mAh. That is, it will easily replenish the battery of your smartphone several times without requiring additional recharging. It has two USB inputs with different current levels, as well as a digital display. The device copes well with its main function and extends the life of the gadget when it is so necessary.

An excellent choice in a stylish and comfortable metal case. Two USB ports and accelerated charging will allow you to quickly “reanimate” two smartphones at the same time. In addition, the capacity of this model is 10,000 mAh. At double click Power buttons allow you to safely charge small gadgets. For example, bluetooth headsets, fitness bracelets. You can be sure of the originality of the product. The label on the package has a security code. To check, you should enter it on the manufacturer’s official website.

The sophisticated matte design attracts the attention of every buyer. The slim design allows you to carry a portable charger in your pocket. Its capacity is 20,000 mAh. There is an electronic display showing the charge. The product has inputs for charging two smartphones at the same time. A great additional feature is the built-in flashlight.

Where to buy

Today, there are more than four thousand different models of this device in the country. The buyer is able to choose it not only according to the necessary characteristics, but also to his taste and color. Digital equipment stores offer a wide range of products. You just need to walk to a large supermarket that sells electronics. However, as you know, their prices are quite high.

Do you want to make your purchase more profitable? Trusted online stores that I recommend will help with this:

With their help, it will not take time to search point of sale, as well as a consultant who will have difficulty describing each model in detail. You will have the opportunity to independently study the characteristics of any option. And then you will give preference to one of them. And most importantly, time and money will be saved.

Remember, before ordering, you should carefully read the reviews and ratings of the product and the seller.

Conclusion

Friends, today it is very important for each of us to always be in touch. To prevent your phone from leaving you at the most inconvenient moment, you should have a Power Bank with you. It will provide you with battery charging without an outlet.

You already know how to choose it so that the price-quality ratio is at the level.

Pay special attention to the characteristics of the product.

This item, like any other electronics, must be chosen responsibly. First of all, focus on the battery capacity and amperage. These are the most important points. To make the item more convenient, look for a model with the additional features you need. Appearance leave the goods for later. This is the last criterion from which to build. If several devices suit you according to their characteristics, then stop at the one that suits you best.

The main thing is not to forget that a compact model with a declared large capacity, many additional functions and a low price will not meet your expectations. A good option does not mean the most expensive. You should focus on the average cost - 1,000 rubles. Products for such a price are often of quite good quality.

Approach your choice with all seriousness. And then the purchased item will bring only convenience and will last as long as possible.

Would you like to follow our news? Subscribe to blog updates and stay up to date.

At this point my article ends. If you found it useful, please share the information with your friends using the social media buttons at the bottom of the page. Any questions? Write them in the comments and receive a detailed answer.

See you! Yulia Kel was with you.

Once again my phone died by lunchtime - a couple of hours in social networks, downloading 400 MB of new podcasts using a 3G network, a few photos - and the battery waved its hand at me. Unfortunately, for many people this scenario becomes a reality every day. Sometimes, when talking with friends, I hear a squeak, and then the conversation is interrupted. They call back from the second number and say the sacramental: “The phone is dead.” The presence of chargers in the car or at the workplace is by no means a panacea. Some people are used to carrying chargers with them and in restaurants choose seats closer to the sockets. As my friend jokes, phones are corded again, but now we are tied to an electrical outlet.

One partial solution to this problem is to choose an external charger that you can carry in your bag and take on trips and hikes. The cost of such devices varies over a very wide range, the number of manufacturers is large, and one’s eyes are often overwhelmed by the variety of offers. This guide will focus on how to choose the right external charger, but before we get into that, let me dissuade you.

Energy consumption in modern smartphones - how to save energy

In the comments to the “Buyer’s Guide. Choosing a smartphone” I came across statements in which people claimed that the quoted operating time for certain devices differs from the real one. For example, the article says that the device easily works a full day, but the commentator has it running down by lunchtime. An attempt to understand this issue thoroughly showed that many people do not think that their smartphone already has all the tools to reduce power consumption and extend the operating time of the device without sacrificing performance. This point of view was also popular - having bought an expensive phone, I’m not going to configure it or use it less than one hundred percent, I want it to work for every penny. It is impossible to agree with such a view, since in any technical device There are operating modes and settings that are unnecessary for many consumers; turning them off does not in any way affect the comfort of use. I am sure that for people with such a position in life there is no need to buy an external battery, they will not have enough of it for a long time anyway. Marketing often replaces common sense - when you hear that people don't want to lower the processor frequency in their smartphone, you realize that they don't know or even realize that most of the time the processor runs at a very low frequency. Treble needed for “heavy” computing tasks, for example, 3D graphics in games, in which case the smartphone produces the maximum frequency automatically, otherwise applications will not work.

Therefore, it is possible that you do not need an external battery, but should look into the power consumption on your smartphone (for tablets this is not so critical and important, although exactly the same rules apply there). And having already exhausted all the possibilities for extending the operating time using standard means, you should resort to an external battery.

In the next two videos, I provide tips on setting power consumption for Android as well as iOS. These tips are universal, you can apply them to different devices, but remember that not all have all the settings and capabilities.

External battery - what types are there, what to look for

When buying an external battery, very often they choose the one that comes to hand, without paying attention to the technical details, which leads to disappointment in the future. I’ll try to talk about all the pitfalls and start with the obvious – the size of the device. Unfortunately, there are no miracles in the world, and the larger the battery capacity, the more space it takes up. You need to decide what you need the battery for - just for a smartphone or do you still plan to charge your tablet as well. Psychologically, we want to choose universal solutions and very often we buy into the fact that on the box we are promised charging not only smartphones, but also tablets. Unfortunately, these promises very often turn out to be false or misleading. To charge modern tablets, you need a battery that produces a current of 1A and also has a capacity of 12,000 to 16,000 mAh, which will allow you to charge the tablet at least half. Such a device will weigh about 350-400 grams or even more. Calling it compact is a bit of a stretch, although simpler external batteries with a capacity of 4000 mAh may not be small.

Size and weight are the first parameters that you need to pay attention to. For myself, I came to the conclusion that I only need an external battery for my smartphone; after all, to drain the battery on a tablet, you need a full daylight hours and continuous play. I admit honestly that I fail faster than the battery in a tablet, I just get tired of playing or watching movies so much. I also don’t go on hikes where I would have time to work on my tablet in the forest; there are always sockets and time to recharge the tablet. But it is possible that you have a different use case and then you need to look at a universal device or buy two different external batteries.

For my smartphone I need an external power source. Given my lifestyle, I was looking for a device that would allow me to charge a smartphone with a 1500-2100 mAh battery or so at least twice during the day. Since I was going to carry it both in my hands and in clothes, sometimes in a bag, the size of the device became a priority. In Hong Kong I bought a 6000 mAh battery under the name VTank, I was captivated by the size and metal case. One of the downsides is the weight of the device, it weighs on the pocket (about 250 grams).

I am sure that you will decide the size and weight of the device on the terrain based on how you will carry it. Even in a lady's bag there is enough space for such a battery. But there is a little trick that is worth remembering - when you charge your smartphone, you will most likely want to use it. See how these two devices fit in your hands while charging (or imagine, if you can’t touch them).

Case materials are another parameter that is not very important, but from an aesthetic point of view it warms the soul of many. Metal or plastic case – what to choose? There are no special features here, you just need to remember that their reliability is approximately the same, but the metal one has more weight.

Battery capacity and current are two main parameters that will be important to you. There is no universal rule, but you need to select a battery with a capacity at least twice as large as the capacity of your smartphone battery (for a tablet, this rule does not apply for obvious reasons; they have record-breaking batteries). At the moment, the most common batteries are with a capacity of 4,000 - 6,000 mAh, they are standard. There is no point in choosing batteries with a smaller capacity; their cost is not much lower, and there is almost no point in them.

When choosing Chinese batteries, there is a high risk of encountering a discrepancy between the declared parameters and the real ones. For example, they will tell you that the battery capacity is 12,000 mAh, but in fact it is only half. On the other hand, this deception is innocent, since they will not charge you any extra money for a “large” container. As a rule, the seller wants to please you and talks about a larger capacity in order to convince you that you made a good deal - you bought such a good battery for cheap.

There is no point in looking for batteries from unknown companies; there are many offers on the market different manufacturers, prices are about the same (I'm not talking about retail, but rather about the Internet).

The optimal choice is a 6,000 mAh battery (this is the golden mean that will suit most people), or choosing a 12,000 mAh battery or higher. It should be taken into account that external batteries have a discharge current, depending on the design and manufacturer, it can vary greatly.

The batteries often use 3.7V batteries inside, while the output requires a voltage of 5V. The boost circuit is not ideal and eats up most of the capacity of the external battery, so when calculating how many times you can charge your phone, it is worth taking this parameter into account. Many external batteries with a capacity of 4,000 mAh can only supply 2,000 mAh, that is, one charge of a phone with a 1,500 - 2,000 mAh battery.

Another important point- this is the current that the battery produces. To charge most smartphones, 0.5 A is enough; this is the minimum current in such devices. Often, charging tablets and a number of smartphones requires a current of 1 A, so you should pay close attention to this parameter. If the battery has several outputs, then the connected load can vary in the range of 1-3 A. In order to determine what charging current you need, look at the labeling of the charger from your tablet or smartphone.

Charging the battery is another non-obvious point that is not paid attention to, but in vain. By and large, all external batteries can be divided into two large classes - those that can only be charged from the computer’s USB connector, and those that can be charged from an AC mains. In the second case, use a standard miniUSB, microUSB connector or charger, which is included in the kit. There is no point in discussing the first type of device; they have almost disappeared and are of no interest.

The lack of charging from a regular network is a serious disadvantage, since in this case you will have to recharge the battery only from the computer and this will take much longer, and you will not be able to charge it to its full capacity (the USB port does not produce enough current). It is necessary that the external battery can be charged from a regular USB connector, but also be able to use regular sockets.

Device charging indicators - usually there are three, sometimes four LEDs on the case that indicate the battery charge. Unfortunately, they give a very rough idea of how long the battery will last. In the case of a battery that has been used for about a year, you can completely forget about the last division; as a rule, the indicator begins to lie and there is no longer enough charge. There are external batteries with digital indicators, they are much clearer and more visual, but you will have to pay 20-30 percent more for them than for similar batteries without such displays. It's a nice addition, but whether it's worth the money is up to you to decide.

Quantity USB connectors on the device - this parameter is optional, but it is also worth taking into account. Many devices have two, and sometimes four or even five USB ports. This allows you to connect multiple devices to charge at once. In my opinion, two USB ports are enough, and even then, their simultaneous use is a very rare case. In my practice, this is rather an exception; I powered the devices of my colleagues this way a couple of times, but did not use it myself.

The on/off button should be recessed into the body to avoid accidental pressing in pockets and subsequent discharge of the battery. In most models, this parameter is not given any importance, which is sad.

I hope that by remembering what to look for, you will not get into trouble when choosing an external battery for your smartphone or tablet, although I have doubts about the second use case. But without recommendations on what to look for and how to buy such batteries, this guide would be incomplete.

Where and how to buy an external battery - prepare your sled in summer

Unfortunately, my work in selecting the ideal external battery is complicated by the fact that there are a huge number of them and it is impossible to describe everything. In your city, models from one manufacturer may be presented, and in the next one - completely different ones; there is no universal recipe.

Most of the batteries with a capacity of 4,000 mAh sold in Russia cost in the range from 2 to 3 thousand rubles, batteries with a capacity of 8,000 mAh cost from 3,500 rubles and above, sometimes reaching 5-6 thousand rubles. In my opinion, there is no point in buying such expensive batteries, since you are overpaying at least two or even three times the real cost of such devices. A reasonable purchase would be to order a battery from China or from websites that sell electronics, then its price with delivery will be significantly lower. We have a separate “Buyer’s Guide” on how to buy abroad.

To search various models For external batteries, you can use the Focalprices website (follow the link to search results for such devices). Quite a wide selection of similar batteries on eBay. Or you can look at these batteries.

If for some reason you do not want to deal with delivery by mail, then you can look for batteries in Russian online stores; the offer is varied, but the prices are higher.

I hope that in this material I have described in detail all the pitfalls and principles of choosing external batteries. It is worth remembering that after a year of use, the battery capacity is reduced to 80 percent of its original rating. You should also treat batteries (both external and built into phones) as consumables. They should be replaced every few years; unfortunately, they do not last forever.

If any of the manufacturers of external batteries would like reviews of their devices to appear on our website, then write, we will be happy to test them.

P.S. I would like to express special gratitude to Daniil, who left a very succinct comment on the use of external batteries; much of this comment was included in the Guide.)

The phone always runs out of charge before an important meeting or during a business call, and the tablet “dies” a couple of minutes before winning the game. A portable charger will help you avoid unpleasant situations. How to choose exactly such an external battery so that it has the maximum number of charges? Suitable for both phone and tablet? In the review you will find the main technical specifications, which you need to focus on when choosing, and reviews about different models batteries.

Power Bank - what is it?

Just 10 years ago, phones worked perfectly without recharging for a week. Today, a device performs so many functions that its battery needs to be recharged regularly. In order not to ask employees for a charger and not to run around the shopping center looking for an outlet, it is better to just stock up on a portable charger. The battery can be carried in your pocket, bag, or in the glove compartment. But how much it can weigh and whether it can charge one or 2 devices several times is a separate conversation.

Power Bank, or external battery, is a portable power source for charging any gadgets. It consists of batteries (from 2 to 10) connected to the controller board. The battery has 1 or 2 USB ports to which you can connect a phone, tablet, video camera, camera, etc.

The device works like a storage device. First it charges from the mains, then generously shares energy with any connected devices.

Before you start choosing a model, you need to decide:

What are you going to charge with the battery? How many devices?
How many times a day will you need a portable power source?
What size and features should your battery have?

External charger capacity

In practice, buyers choose a portable battery based on the size, design and color of the case. Then they buy a new one if this one is not satisfactory. It is much more practical to immediately take into account the main technical characteristics. The most important of them is the capacity of the device.

The main task of the battery is to release the accumulated energy. The question is how much the Power Bank can hold and deliver, this is capacity. The capacity is usually indicated on the case or in the device documents.

Advice. If you liked an external battery with an impressive capacity and a relatively low cost, then most likely it is a fake with low-quality components.

The difficulty is that the amount of energy received and transmitted is slightly different, because some of it is lost during the transmission process.

Some unscrupulous manufacturers, taking advantage of this moment, indicate the amount of energy received rather than given. Experiments have shown that the average amount of transmission losses is 20-30%. This means that a charger rated at 1000 mAh can charge a smartphone at 700-800 mAh. It is almost impossible to check this when purchasing, which means you need to choose products from well-known brands.

Attention! It is better to purchase a charger with a capacity that is twice that of a phone or tablet battery.

If your phone has a battery capacity of 2800 mAh, a charger with a rating of 5600 mAh or more will be suitable for it. If you are charging two devices, then you need to add their capacity and multiply by 2. And when purchasing, be guided by this figure.
The average option can be considered a Power Bank with an indicator of 6000 mAh; with it you can charge a smartphone within 2-3 days. Suitable for phone and tablet universal option with 12000 mAh

The strength of the outgoing current supplied to the connector

The output current is the second parameter that needs to be taken into account when choosing. The fact is that the current strength partially affects the charging speed of the device.

Attention! Holders Apple tablets A 2A charger is suitable. This indicator is usually indicated on all portable batteries next to the connector.

Standard USB port with a current of 1A for phones and 1.5-2A for tablets. When purchasing a battery, you need to ensure that the charging current matches the device you are going to charge. Or choose a universal battery.

Apple Iphone, video cameras and players match the battery, which has a current strength of 1A. For iPad this figure increases to 2A. This means that if you are going to charge your phone and tablet at the same time, you need to select an external device with two connectors, 1A and 2A.

Theoretically, you can charge a smartphone with a 1A rating through a 2A connector and it will “come to life” faster. Or, conversely, charge the tablet through the 1A port, which will be much slower. But it is better to follow the device manufacturer's recommendations.

The input current refers to how quickly the battery itself charges. The same principle applies here. The current strength must be equal to or exceed the battery capacity, then it will be recharged at high speed.

Features of the portable charger housing

On the one hand, I want to use a light, compact battery that fits in my pocket and won’t weigh it down. On the other hand, for full, comfortable charging, a large capacity is required. How can you find the optimal ratio?

Attention! Experts warn that small, cute batteries with a large capacity do not exist in nature! The higher the capacity and the more connectors on the charger, the larger and heavier the device itself will be.

The way out of the situation is simple; you need to choose a Power Bank based on individual needs. Calculate how many times a day you need to charge one or two devices. In accordance with this indicator, purchase a battery. Experienced users advise adding a small margin to the resulting figure. In case you decide to go on vacation with friends and share exercises with them.

Additional features of the portable charger

You can often see batteries with additional features. Let's list the most popular "chips":

Charger with flashlight. Such a battery can be useful if it is small enough to fit in a pocket or in the nearest compartment of a bag. Manufacturers usually use an LED as a flashlight, which operates on a minimum of energy and is not capable of draining the battery.
Battery with built-in solar battery. On the one hand, this solution is very environmentally friendly, because the Power Bank can be charged not only using a computer or outlet, but also using sunlight. The downside is that such charging lasts at least 3-4 days, provided the weather is good.
External charger, plus Wi Fi router. Such batteries combine two functions: they charge and work as a router, that is, they distribute the Internet.
The user may find this function useful automatic shutdown nutrition.
All batteries have a built-in charging indicator in the form of “sticks”, which over time can lead to incorrect information. A digital indicator with a display is much more accurate and reliable, but adds about 20% to the cost of the battery.

Portable in design and color chargers They can be bright and interesting or strict and businesslike. For example, the Gmini company produces batteries that look like stones.

To questions like: “Which portable charger is best to buy?” Experienced owners of high-quality devices unanimously advise not to save money, but to purchase batteries from trusted brands. A lot of examples and photos with a battery and two bags of sand in a beautiful case make you doubt Chinese-made products.

Experts believe that the average cost of a high-quality Power Bank is $40. Purchase external device It can be much more profitable on the Internet, but it is better to buy it in a store, where they provide all the documents and a guarantee.

How to choose an external battery for your phone - video

Everyone calls this item differently, but they miss it just as much when the battery is low and there is no outlet nearby. The arsenal of gadgets is now not limited to the smartphone; it often comes with wireless headphones, smart watches, fitness bracelets, Bluetooth speakers... For their owners, the question of how to feed this entire menagerie is especially acute. We'll tell you how external batteries differ from each other, how to choose the right one for you, and how to use them correctly.

How much do your devices consume?

We need to start by answering exactly this question: after all, an amateur climber shooting with a GoPro camera and editing video on a tablet while mountain hiking needs more energy than an office manager swimming with a player in the pool. For clarity, here are the average battery capacities for some types of devices:

action camera: 900 mAh;

wireless headphones: 150 mAh;

music player: 1800 mAh;

wireless speaker: 3000 mAh;

smartphone: 3000 mAh.

Taking approximately these figures as a basis, it is enough to remember which devices you use most often and plan to charge; get something like this: 1800+150+3000=4050 mAh.

At first glance, this is the capacity that is needed in wireless charging to replenish the battery of all devices. In fact, it is advisable to multiply this number by another 20 percent to compensate for losses from heating, the influence of low temperatures outside and other factors. That turns out to be 5000 mAh.

The second characteristic that you need to pay attention to is output voltage and current strength. There is no need to remember physics, because most chargers have an output current of 1 A or 2.4 A. The higher the current (A), the better. After all, smart portable technology can limit the current to the desired value, but it cannot get more.

In general, portable chargers are divided into five categories.

Pocket Helpers

How to calculate: capacity up to 3000 mAh

Such chargers are a chic addition to a car’s glove compartment, bag and backpack, as well as the inner pocket of a skier’s jacket. They are made, and they will help when you need to add a little more charge to your smartphone or power up your action camera. You can choose a compact charger based on your design preferences, and it is not at all necessary to study the characteristics of the output current: often the actual output current is 1 A, which means the charging time will be about three hours.

Signature Redline R-2600 2600 mAh with a current of 1 A

The power bank can be safely charged for future use so that it is kept just in case. The self-discharge of such devices is very slow; over the course of a year, your portable battery will only drain by 10–15 percent.

Workers for every day

How to calculate: capacity about 5000 mAh

These everyday chargers are most often found in the hands of passers-by and in the car interior, where it is possible to recharge the battery from the cigarette lighter. Convenient, compact and effective assistants for active smartphone owners who are unable to change the battery in non-separable device cases. And at the same time, lovers of short trips and trips on their own. You should choose such charges according to the output current from 2.1 A, and also give preference - the coolest battery cells are shaped like thick batteries.

Signature Huawei CP07 6700 mAh with a current of 2.4 A

Catering for a large company

How to calculate: capacity from 8,000 to 12,000 mAh

If you are a gadget addict and pay for purchases in the store not even with a smartphone, but with a watch, your collection of equipment can be fed with more powerful chargers. This capacitive group has a strong output current, and even accelerated charging technologies, so the design and number of ports for simultaneous recharge become the determining factor when choosing. Please note: often the second USB output is weaker than the first, so we recommend checking this parameter in the specifications.

Ttec Powerslim 10,000 mAh with a current of 2.1 A

Accelerated charging technology significantly reduces the time to reach the cherished 100 percent on a smartphone battery. An hour, a maximum of one and a half - and the phone is completely ready for use. However, pay attention to what accelerated charging technology your gadget supports. QuickCharge, SuperCharge, Adaptive Fast Charging - all this different types, which are not compatible with each other. Thus, a smartphone can be quickly charged using SuperCharge (if it is a Huawei P10), and the Power Bank can support QuickCharge. In this case, you will be able to power the gadget, but the charging time will be normal.

Pocket power station

How to calculate: by capacity 15,000-20,000 mAh

Many of these are ready to charge even the MacBook 12 and other laptop models with a connector for USB charging Type-C. And at the same time, distribute energy to several devices at once without a drop in power on one of the USB outputs. These charging stations are good for everyone, but there is nothing to hide their size and weight. This ailment limits their scope of use, but if you need confidence in the operation of all equipment for several days ahead, there is hardly anything comparable to them in terms of efficiency of return.

InterStep PB16DQ 16,000 mAh with a current of 2.1 A

Wireless portable chargers

Apply your smartphone and see

More and more new smartphones are equipped with wireless charging modules of the Qi standard and analogues - for example, Samsung Galaxy S7, S8, iPhone 8, X. Just put these smartphones on wireless charging, and the battery will start charging automatically. No wires or confusion, because the technology is based on magnetic induction. Most of the smartphones that support wireless charging operate according to the Qi standard, and recently, fast ones suitable for them have begun to appear. When choosing such charges, it is better to slightly increase the capacity reserve in order to compensate for the loss of energy for such an effective transfer process. By the way, such chargers themselves can be charged from stationary platforms.

Ferrari 10,000 mAh with wireless charging Qi

Instead of output

It’s not difficult to understand the variety of portable chargers if you compare the model you like according to the parameters and know exactly what capacity is required. It is not advisable to take extra chargers, because this will affect the convenience of carrying with you without bringing much benefit. Having decided on the appearance and capacity, make sure that you have the necessary bonuses - wireless or fast charging, after which you can safely buy a convenient, practical and suitable device.

Contrary to popular belief, Power Bank does not damage the smartphone battery. Simply feeling that salvation is always at hand, gadget owners begin to use the device more actively, charge it more often, and thereby generally increase the number of charging cycles, which is limited for each battery.