Production of an external battery for a mobile phone. How to choose an external battery for your smartphone: a cheat sheet from CHIP
How many times have you had to suffer from discharging your smartphone at the most inopportune moment? And if you need to call urgently or wait for an important message? It’s good if there is an outlet or a computer nearby, from which you can quickly charge the device. But what if they are not? Exit - use external battery(power bank). The Internet project "Be mobile" has collected tips to help you choose best option for you.
First, let's define what an external battery is and what are its advantages. external battery or power bank is called a portable lithium-ion battery of high capacity, from which you can charge a variety of mobile devices: phones, smartphones, tablets or e-readers. This battery is capable of storing energy within itself for a long time. You can take it with you to work, study, on a business trip or while traveling.
The portable charger can be made in various form factors with a plastic, polycarbonate or metal case. On sale you can find models in the form of boxes, bars, discs, cones and tubes of various colors.
The Power Bank is charged from the electrical network or from any device with a USB output (for example, a computer or laptop).
All external batteries are equipped with one or more USB ports. Modern phones, smartphones or tablets can be charged using a USB cable, which in most cases is included with the device.
id="sub0">The main parameter when choosing an external battery is energy intensity. Everything is simple and clear here. The larger the capacity, the more energy the device stores, and the more expensive it is. Capacity is measured in mAh - milliamp hours.
On sale at present, you can find portable chargers with a capacity from several hundred milliamp hours to several tens of thousands. You can estimate the level of charge that you need based on the battery capacity of your smartphone or tablet.
For example, in an average smartphone, the battery has a capacity of 2,000 mAh, in productive and expensive models - from 2,500 to 3,000 mAh. This means that a fully charged external battery of 5,000 mAh is enough for 2-2.5 charge cycles. A fully charged 10,000 mAh external battery will last for 4-5 cycles. If portable charging is necessary for the tablet, then you should choose from models with a larger capacity, for example, 20 or 30 thousand mAh.
The current portable power sources are equipped with lithium-ion or lithium-polymer batteries. Depending on the type and design variant, the nominal voltage at the output of the battery can be different (3.7; 4.2 or 7.4 V), while the standard bus voltage USB power supply is 5 V direct current. Obviously, in this case, a 2000 mAh battery with a nominal voltage of 3.7 V, even under ideal conditions, will not work for even an hour and a half when powered by an external load connected via the USB bus and consuming a current of 1 A. In addition, the amount of electricity that can be stored rechargeable batteries having the same capacitance but different voltage will be different.
Tip 2: look at the current strength, it affects the charging speed
id="sub1">Another factor that affects the charging speed is the current strength. The more amps, the faster the charging speed. For phones and smartphones, this figure must be at least 1 ampere. AT otherwise the process itself will be extremely slow. It will take 3 or 4 times longer to fully charge than from the mains.
For tablets, devices with a current strength of 3 A or more will be preferred. The ideal option is 4 A.
Tip 3: trust, but verify, because the declared capacity does not always match the real one
id="sub2">Another important point is the real capacity of the Power Bank. The fact is that many manufacturers embellish the performance of their products. Of the 50 portable chargers we've been testing over the past year, 46 had significantly less capacity than advertised. The average difference was 25%.
For example, the manufacturer indicated that the external battery has a capacity of 10,000 mAh, but in reality - 7,800 mAh. The difference is connected both with the dishonesty of the developers and improper storage of batteries during transportation and subsequent sale.
The real capacity is also affected by such an indicator as self-discharge.
On average, external batteries with a full charge within two weeks are discharged by 5%. This should be taken into account if you do not use Power Bank for a long time. To activate electrolytic reactions, it is worth putting the device on recharging before use.
Keep in mind that battery capacity will decrease over time. Our measurements show that with active use, a high-quality battery loses its capacity by 15% per year, the cheapest models - 35%.
To control the level of charge in almost all Power Banks, LED indicators. And some external batteries are equipped with LED displays that show the exact state of charge in percent.
Tip 5: choose a power bank with multiple USB ports to charge your friends smartphones at the same time
id="sub4">Some models of portable chargers have several USB ports for connecting two, three or even more at once mobile devices. This option is suitable for simultaneous recharging, for example, when you go on a trip with friends. It's comfortable. Together you can charge your phones, smartphones and even tablets.
Often you ask us where you can guarantee to buy a high-quality external battery cheaply. We cannot give a definite answer. Of course, the reliability of a purchase in a large Russian online store or in a retail network is higher, but the prices there are also higher. It is worth remembering that little-known Chinese sellers have a peculiarity: they can deceive. Their external batteries are much cheaper than branded counterparts, often they indicate the volume is 2 or 3 times higher than the real one. Too low a price can be a trap. Although branded Power Banks in such stores can be fakes.
Compact
id="sub5">If you need compactness, you can pay attention to ergonomic models, for example, Anker Astro E1. This battery will not take up much space in your bag or pocket.
Universal
id="sub6">The ideal option would be batteries with a capacity of about 10,000 mAh. This is about three times more than the battery of a modern smartphone, which means that even taking into account the loss of energy during recharging, it will be enough to fully restore the charge of the gadget several times. A good example of such a power bank is the Anker PowerCore 10400 mAh model.
Another option for a high-quality external battery with universal functionality is Aukey PB-N42 10000 mAh.
Supports fast and wireless charging
id="sub7">If a universal options not your option, then you should pay attention to models with additional functions. For example, a power bank with support fast charging will be able to charge compatible gadgets much faster than usual. If the battery is capable of delivering a consistently high current (about 2A), then even without support for fast charging, your gadgets will charge stably and relatively quickly.
Among those recommended by us is the Baseus Wireless Charge Power Bank 8000 mAh external battery. Its main feature is the presence wireless charging Qi standard. That is, to charge a smartphone - you do not need to connect a wire to it, just put it on an external battery and that's it. Charging started. In addition to wireless charging with a current of 1A, the device supports a wired USB connection of two compatible devices, while the output current to the USB connectors is 2A.
A good option for the iPhone is the Zikko PowerBag 6000 mAh external battery. The main difference from the popular Xiaomi external batteries is the MFI certification, that is, the battery is compatible with all Apple devices. The device supports fast charging - the output current to the USB connectors is 2.4 A. In order to track the battery capacity, there are special LED indicators on the end. A nice bonus - the smartphone is connected to the battery via the supplied Lightning cable.
With a record capacity
id="sub8">If you're looking for a strategic boost of power, check out the 26,000mAh HyperJuice AC Battery Pack. This giant can quickly charge absolutely any device, including a tablet, other portable equipment and even a laptop. There are 2 USB outputs here. One provides a maximum charge of 3A at a voltage of 5W, and the other provides a current of 2.4A. A nice bonus is the ability to provide 220W power to any electrical appliances with a power consumption of up to 100W. You can connect a laptop, a flashlight and even a blender to such a battery.
The HyperJuice AC Battery Pack is made of aluminum alloy, which perfectly protects the device from external mechanical influences.
We hope that our advice will help you buy a truly high-quality external battery and charge your phone, smartphone, laptop or e-book without any problems.
What is the name of portable phone charger? In today's age of high technology, each of us has many different gadgets. These are smartphones and e-readers. players and ipads,
What is the name of the portable phone charger? mobile charging for phone
What is the name of the portable phone charger?
What is the name of the portable phone charger?
In the current age of high technology, each of us has many different gadgets. These are smartphones and e-readers. players and iPads, tablets and laptops. All this electronics works from the energy accumulated by the battery during recharging from the mains or other power source. But, leaving to relax in nature or being, for example, on a long bus trip, it becomes problematic to charge the equipment.
Of course, there is a way out of this situation, and not even one. You can purchase an extra battery instead of a charger for your mobile phone- this will save you a lot of time. If the phone runs out of power, you should insert a second battery and you can continue to communicate. But in this case, you will have to buy separate batteries for each gadget and carry them with you, and this will result in unnecessary and unjustified expenses.
Benefits of a portable phone charger
Another alternative is to buy a charger that does not need electrical network. Just connect it to your mobile phone with a cable. Often such a device is called a pocket device, because it has a very small size and weight, and the charging process itself can take place in your suitcase, bag, or just in your pocket. This device (by the way, they are also called external batteries) is becoming increasingly popular for one simple reason - it is very convenient! Let's talk about the benefits of a portable charger for your smartphone or regular mobile phone:
- The main advantage is the versatility of such a device, because with the help of a single device you can charge almost any of your gadgets.
- The external battery is universal, and therefore it is convenient to use it on a family trip, charging the mobile phones of all family members in turn.
- Some types of portable devices (we will talk about them a little later) do not need an electrical outlet at all, but are charged from alternative energy sources.
- Universal portable charger will be a great gift for any modern person who uses the phone.
Types of pocket phone chargers
There are several types of such chargers. The most important difference is the power of the charger, designed for a phone or, say, a netbook. We will consider the types of so-called low-power chargers designed specifically for mobile phones and other portable devices:
External battery for phone: selection criteria and how to use
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best power bank for phone
Battery capacity is one of the most important criteria for choosing a phone. Everyone wants their device to serve for a long time and not fail at the most crucial moment. However, battery power is limited, and even on the most modern smartphones, it runs out sooner or later, especially if you actively surf the Internet, use a GPS navigator or play games. In some cases, it is critical that the phone stays on when it is not possible to charge it. For example, if you are on the road or find yourself in an unfamiliar city. In this case, a suddenly dead phone can trigger a panic attack.
Taken from the site: usb102.ru
To prevent such annoying situations and always be in touch, you should purchase an external battery for your phone. It's small portable device help you charge your battery at any time. When choosing such devices, there are several important characteristics to keep in mind.
How to choose a portable charger?
When choosing a portable battery, consider the following indicators:
- Battery capacity
- Current strength
- Number of USB connectors
- Accessories
- Additional features
Battery capacity
One of the most important indicators is the capacity, which is expressed in milliamps per hour (mAh). When choosing a device, be guided by the fact that the external battery exceeds the capacity of the device being charged by about 2.5-3 times. As a rule, the actual volume of the battery does not correspond to what is declared by the manufacturer. Therefore, they cannot boast of 100% efficiency. Therefore, a battery with a capacity of 5000 mAh will not be able to charge a device with a 2500 mAh battery 2 times. For small devices a battery with a volume of 5000-10,000 mAh will go. Having studied the volumes of the device, you will know how to choose portable accumulator for the phone and do not miscalculate.
The efficiency of your portable battery depends on the strength of the current. For older phones, 0.5A is enough, and for more modern smartphones and tablets, 1A. It is worth choosing a battery that suits your phone. But it is also desirable, before choosing a portable charger, you should make sure that it has a "fast charge" function.
Taken from the site: palladium.ua
Number of USB connectors
If the device has two connectors, then you can charge two devices at the same time - yours or a friend's. This is very convenient, for example, if you have two important devices dead.
Accessories
As a rule, the standard PowerBank package includes adapters for various types connectors - microUSB, Lighting, old Apple connector, miniUSB. It will be useful to have a network adapter for PowerBank in the package.
Additional functions
As a rule, all modern external batteries have special indicators that allow you to visually assess the amount of remaining charge. There are also models with digital LCD-indicators.
For safety purposes, batteries are equipped with systems automatic shutdown, which protect devices from a sharp jump in electricity and short circuits. Some devices have an automatic load shutdown feature that helps prevent wasted power.
Many external batteries have LED flashlights that will not help you get lost in the dark. Also, some devices are equipped with such additional "gadgets" such as wi-fi, a flash drive, and even hand warmers. Before choosing a portable phone charger, be sure to evaluate their list of features and choose the ones that you need the most.
Rating of portable chargers
There are several leaders on the market that surpass models from other manufacturers with their characteristics. It is about them that we will now talk, and try to find out which is the best external battery to purchase for your device.
Canyon CNE-CPB44 is the best portable battery
Taken from the site: shark.sk
Compact, inexpensive and convenient PowerBank, which will save you in difficult times. It is so small and light that it can be easily hidden in a pants or shirt pocket. A powerful current of 1A allows you to charge your phone with the same efficiency as from a wall outlet. The battery case is durable. Thanks to 4 indicators, you will always know how much charge is left in the device. Also, the device is equipped with a powerful LED flashlight. The battery capacity is 4400 mAh.
Samsung EB-PN915B
Taken from the site: mvideo.ru
Portable battery from a well-known Korean company. The device boasts an impressive capacity of 11,400 mAh. The current power is 2A, which allows you to charge any phone in the shortest possible time. Separately, it is worth noting the possibility of charging two devices at the same time. The battery has a built-in 6 cm long cable. The corresponding indicators on the surface of the device indicate the level of charge.
The design for PowerBank was created by Subgsil, which, wanting to draw attention to the problem of survival rare species animals, on the front side of the battery applied images of endangered representatives of the fauna.
InterStep PB16800 is the best power bank for your phone
Taken from the site: reditstudio.ru
This compact battery packs an impressive 16,800mAh of power. This amount of charge is enough for the longest trip. The elongated design of the device makes it comfortable to use. The battery has a powerful built-in flashlight, as well as two USB outputs for connecting to external devices. The current strength of 2 A allows you to charge the device as quickly as possible. The total battery lasts for 500 charges.
Hiper SLIM3500
Taken from the site: sidex.ru
This portable battery has a stylish and elegant design. With a slim 4.5mm body, you can carry the device around in your pocket without any inconvenience. The battery capacity is 3500 mAh. The current strength is 1 A. The LED indicator will always keep you informed about the current charge of the device. This PowerBank comes with a USB adapter.
ASUS ZenPower ABTU005
Taken from the site: stolica.ru
The battery of this portable battery is housed in an aluminum housing that is no larger than credit card. The output current is 2.4 A, which is comparable to charging from a conventional outlet. Charging time will be approximately 2.5 hours. The battery itself has a capacity of 6600 mAh, so it will last for for a long time. Also, the device is equipped with an emergency shutdown system, which will protect the device in case of a short circuit.
Xiaomi Mi Power Bank 16000 is the best portable charger
Taken from the site: krutmobile.com.ua
Xiaomi has taken a leading position in the electronics industry, offering the best value for money. Their portable batteries are no exception in this regard. The device has a capacity of 10200 mAh. The presence of two ports allows you to charge two devices at once. The current strength on both ports is 2.1 A. This is enough to charge the battery of a tablet or smartphone in a couple of hours. The amount of charge in the battery can be recognized by the indicator on the device.
Canyon CNE-CPB100
Taken from the site: petromap.ru
The Canyon company became famous for the production of portable batteries. The CNE-CPB100 boasts a 10,000mAh capacity and dual USB ports. Thus, you can charge two devices at the same time. The output current is 2 A. The compact dimensions of the device make it easy to carry it with you in your pocket or purse. Separately, it is worth noting the democratic price of the device.
TP-LINK TL-PB10400
Taken from the site: compw.ru
TP-Link decided to experiment with the shape of the device and created an elongated rectangle instead of the usual flat battery. Unusual for powerbanks, the design looks very nice and is distinguished by practical convenience.
The capacity of the device is 10,400 mAh. This volume is enough to charge the now popular iPhone 6S 4 times.
The device has as many as 6 degrees of protection against a sudden power surge or short circuit. The battery is equipped with two USB ports with a current capacity of 1 and 2 amperes. Also, TP-Link engineers equipped the gadget with a blue LED flashlight. Thus, the device will not only save your phone from a sudden shutdown, but also help you find your way in the dark.
Canyon CNE-CPB78
Taken from the site: kupi.tut.by
A worthy product from a well-known manufacturer of mobile peripherals - Canyon. CNE-CPB78 has a cute and compact design. Also in the piggy bank of pluses you can add the presence of two USB ports and a built-in led flashlight. An impressive 6800 mAh battery allows you to charge your phone in a matter of hours, and the battery lasts for 3-4 full charge cycles. Also a big plus is the reasonable price.
Xiaomi Mi Power Bank 10000
Taken from chipmart.ru
Another product from a well-known Chinese manufacturer. This is a fairly recent development of Xiaomi, which has become lighter and more compact than its predecessors. The battery has been enclosed in an aluminum case, which should reliably protect your device from external influences. At the same time Powerbank weighs only 200 grams. The battery capacity is 10,000 mAh. This is enough to fully charge a modern smartphone three times. At the same time, a full charge of the battery itself is achieved in 5.5 hours. The amount of available charge can be determined by the corresponding indicators on the device.
We hope this TOP will help you choose the best portable charger. In this rating of portable batteries, we have included the most popular devices that have received the most recognition from consumers. But when choosing, you still need to focus on the performance of your device, so as not to be mistaken.
Portable chargers for phones: what is it, how does it work
The main problem of modern phones and tablets is the low battery capacity. Most smartphones hardly survive until the evening or sit down at the most inopportune moment. Big screens, powerful 4G and 5G apps all suck up battery capacity and drain your phone at the most inopportune moment. Is there a real opportunity to extend its service life and not get into an unpleasant situation? The solution is simple - use portable chargers for the phone, recharging it if necessary at the workplace, in the car or on the subway. In this article, we will talk about how to choose the right portable charger for your phone and how to use it correctly.
You have probably come across a situation where the phone runs out of charge at the most inopportune moment. Well, if this happens at home or in the office, where it can be recharged. But if you went on a trip and use your smartphone as a navigator, if you urgently need to take an important call or check your mail, and it takes several hours to get to the nearest outlet, then only portable charger or a spare battery, which will have to be charged separately or carried with you.
Classic Power Bank for charging
Working with a spare battery is not always convenient - the phone will have to be disassembled, replaced, turned off. In some models, the battery is not removable at all, so this trick will not work. Portable charger for this is more preferable.
Most chargers are batteries that charge from a USB connector and transfer the charge through a cable to the phone. There are also various exotic chargers from a solar battery or a fire, but they are mainly of interest to tourists. In our article, we will focus on the so-called Power Bank, which is colloquially called external batteries. Consider what types of portable batteries for charging your phone are, how they differ and which device you can choose for reinsurance.
Portable cell phone batteries are very popular in the market right now.
What is Power Bank
Power Bank, in fact, is a universal battery suitable for charging any device via USB or mini-USB connector. It is an array assembled from several small batteries connected into one and packed in a beautiful case. The battery capacity depends on the number of cells, in popular models it varies from 5 mAh to 15 mAh.
The case of the Power Bank can be plastic or aluminum, it has 1-2 outputs, charge indicators, a power button and other additional options. For example, some models have a built-in LED that allows you to use the Bank as a flashlight. But the main task of the device is to charge phones, smartphones, tablets and other devices.
More about capacity
When choosing a portable charger for a mobile phone, be sure to pay attention to the number of "mach" (mAh) or milliamp hours. It is in them that the capacity is indicated and it depends on this indicator how much your smartphone will charge.
Attention: the larger the capacity of the Power Bank, the greater its weight and dimensions. No need to buy overly powerful smartphone devices if you only occasionally need to recharge your phone - this will be an unreasonable waste of money, and it will be inconvenient to carry a huge and heavy device.
Inside the Power Bank are modern lithium-polymer or lithium-ion batteries, the main advantage of which is the minimum self-discharge current and high specific energy intensity. They can withstand up to 500-600 charge / discharge cycles, after which they slowly begin to degrade. On average, when charging the phone 2-3 times a week, they last for 5-6 years, which is quite a decent period for modern batteries.
Solar charging will be useful for tourists and travelers
Now let's figure out how to choose the right container. On sale at this moment There are devices with a capacity of 2 to 20mAh. Find out how much battery capacity is on your phone. Add 20% to this and you get the desired capacity.
Example: Your smartphone has a 2200mAh battery installed. For a full charge, you need to use a Power Bank with a capacity of 2200 + 2200 * 0.2 = 2640. That is, theoretically, for a full charge, a bank with a capacity of Mach 2.5 is enough for you, but it’s better to play it safe and take 3.
Tablets have more capacious batteries, so devices with a capacity of Mach 7-15 are suitable for them.
Calculate the number of charge cycles
Consider one subtlety of portable chargers for phones, which you must know without fail and take into account before choosing. Many people think that if the battery capacity is 3mAh, then by purchasing a charge for 15 it will be possible to charge the phone 5 times. But this is deeply misleading. If you choose a bank that will be able to charge the battery multiple times, please read the following information carefully.
- Batteries have self-discharge. If you charge the 15 flywheel device to 100%, then after two days its capacity will be 14, after another 2 days it will be 11, and so on. different devices different degree of self-discharge, but it is present everywhere.
- Power Bank is not 100% efficient. So, the battery has an output voltage of 3.7-3.5 volts (depending on the degree of charge), while USB requires 5 volts. Therefore, a step-up transformer is included in the bank circuit, which also eats up part of the capacitance. It is noteworthy that in the phone these 5 volts are again converted to 3.7 volts, and the loss occurs again.
On average, a bank is able to give 70-80% of its real capacity. And if in the city these losses are insignificant (“having fed” the phone from the Power Bank, you can get to a full charge), then for travelers this can become a problem. Therefore, be sure to purchase devices with a margin of 20 or even 30 percent to get the desired values.
Example: if the capacity of your battery in your smartphone is 2200mAh and you plan to charge it from the bank at least 5 times, then 2200*5=11000+11000*0.3=14300. A capacity of 15,000 mahs will be enough to charge the device the required number of times until the batteries inside begin to degrade.
How to choose
Now you know what a portable phone charger is called, how to correctly calculate the capacity and stock. Let's figure out which device is right for your phone.
The key advice is to decide in what format and when you need recharging. If you use your phone for work and in 99% of cases out of 100 it lasts all day, and you charge it every night, then a small 1mAh key fob that can be worn on keys will be enough for you. It will not overload your pocket or get in the way, and this capacity is enough to charge your phone by 30-40 percent and easily get to the classic charger.
Standard charger is about the size of a pack of cigarettes
Considering small pocket chargers for phones, you should focus on batteries built into cases. These are quite interesting devices, the main advantage of which is their compact size. You simply purchase a convenient protective case for your phone and with it you get an additional 2-3 thousand mAh battery that can fully charge your smartphone if necessary.
Charge currents
Native phone chargers have such a parameter as charging current. It can vary from 0.5 to 1.5 Amperes (sometimes even 2 A). The higher the current, the faster the battery charges. For pocket chargers, this parameter is lower than for wired ones, and is usually 0.2-1 A. When choosing a device, remember that the higher the charging current, the sooner the device will charge. Do not buy inexpensive devices with minimal performance - very often they only provide battery maintenance, while not really charging the phone (during operation, the smartphone consumes the same or even more than a weak Power Bank gives it). Buy devices with power over 0.5A, and preferably 1A, then your phone will charge in 3 hours instead of 5.
Devices on Li-Ion
The most common types of chargers are devices powered by 18650 lithium-ion batteries. They are similar to conventional AA batteries, but are larger. The output voltage is 3.7 volts, the standard capacity is 2500 mAh, and the weight is 45 grams. Li-Ion batteries can withstand up to 600 charges without degradation, by 1000 charge cycles they lose 20% of their capacity. The main advantage of the elements lithium ion devices- long service life, low self-discharge current, low weight and no memory effect.
Of the minuses, one can distinguish a violation of the tightness of the batteries, which manifests itself when the device overheats - do not leave it on the battery, in the sun under the glass of a car, in other places with high temperatures. Overheating during charging on modern high-quality devices does not occur - special protection is installed in the unit.
Attention: today on the market there are a lot of fakes from unscrupulous manufacturers promising 30,000-50,000 mAh in inexpensive devices. Buy only branded Power Banks in verified places.
Li-ion batteries inside the charger
We note the approximate dependence of capacity on mass - 5,000 machs weigh at least 100 grams. Therefore, a device for 50,000 will weigh a kilogram, and not 300 grams, as promised in various online stores. However, such a system for determining the real capacity is not a panacea - the Chinese have learned to put weights in the case to convince buyers of the reality of the characteristics. You can check the capacitance using a multimeter or calculations.
Devices on Li-Polymer
Lithium polymer batteries are considered more advanced than lithium ion batteries. A special polymer with gel lithium acts as an electrolyte in them. They are rectangular plastic bags with two leads. The package contains electrolyte and working elements. The Power Bank case reliably protects an unstable battery from damage. Among the key advantages are low weight, high energy density per unit volume, and the absence of a memory effect. Of the minuses - a complex circuit that protects the battery from overheating, providing a specialized current charging mode. Also, you should not allow the battery to be deeply discharged, since it may not turn on (you will need to apply voltage directly to the contacts, bypassing the circuit in order to revive it).
Attention: Purchase only certified lithium-polymer devices, as counterfeits often fail. They are prone to ignite with the release of huge amounts of heat and extremely harmful gas.
It is from these batteries that fires start and phones burn out. If a short circuit occurs while charging, the device may cause a serious fire.
Polymer battery without casing
If you want to be always in touch or the phone plays an important role in your life, then a portable charger must be present in your pocket. The main thing is to decide on its capacity and weight. For travelers who spend a week without an outlet, powerful batteries for 15-30 thousand mahs are suitable, for office workers small 1-3 thousandth batteries. We recommend that you purchase original chargers so as not to be disappointed in them - today there are a lot of fakes on the market. A quality item will not be cheap. The average price of the original bank is 30-40 dollars.
If you have a phone and a tablet, then you can purchase a device with two outputs - it will be able to charge them at the same time. There are many options on the market - research them before making your final choice.
In our age of modern technology, various gadgets have become familiar and convenient items, they are used by people of different professions and age categories. It often happens that charging a smartphone is not enough for a whole day for various reasons. Outside the home, for example, on a train or at a picnic, charging equipment becomes problematic.
Mobile phones are the most commonly used and it happens that charging in them ends at the most inopportune moment. How to find a way out of this situation, what kind of portable device to buy so that it operates reliably and smoothly?
The portable battery is a good alternative to conventional chargers that work only from the mains. Portable fixture does not need the mains during contact with a mobile phone. It only needs to be connected to the phone, and it will immediately begin the charging process.
Such devices are often called external batteries, for many they have already become indispensable helpers. The popularity of this portable item is explained quite simply - it is very convenient. There are several types of pocket chargers that are designed not only for smartphones, but also for laptops. Many of the readers will be interested to know about the types of chargers that can be used for mobile phones, as a rule, these are low power chargers.
- Solar charger - latest technology modernity, solar panels are used. It is enough to hold it in the sun or in the light during the daytime, and it is gaining charge, very convenient when traveling to hot countries.
- Devices that can be charged from the cigarette lighter in the car or from the USB port.
- There are portable chargers that run on conventional replaceable or rechargeable batteries.
- Contactless is a new revolutionary direction that is on the way of development. For charging, induction is used, so the technique is called inductive.
Modern wireless chargers include USB power bank. It is designed to extend the life of a mobile phone in conditions where it is not possible to use a conventional charger from the mains. We will look at this portable battery in more detail and find out how it works and what are its advantages.
Its appearance is distinguished by a stylish design, and its compact dimensions allow it to fit even in a jacket pocket or a small handbag. The portable charger looks very simple and stylish without frills - a case with two connectors.
Principle of operation
There are 2 interfaces in the charger, one of them Micro USB, to supply power to a portable device, as well as a USB outlet for charging gadgets. It is best to leave the portable battery on the network overnight, and it will receive the necessary power to charge the mobile phone at any time when it sits down. You can also connect other devices to it for charging, and unlimited quantity once the pocket charger not fully discharged.
Main advantages of Power Bank
Many of us have tried other portable chargers that did not work reliably and well. Unlike many others wireless devices, Power Bank will be able to charge at least one most modern phone per day. If we take a device powered by solar panels, it is much more expensive and less effective. It is best to buy a Power Bank, it will work more reliably, as it has already been tested by many consumers who were able to evaluate it and leave their positive feedback.
In 2014, studies were conducted among wireless chargers and they showed that Power Bank is the most efficient according to certain indicators.
- Stability of work and charging of the device
- Low percentage of energy loss
- Optimum battery capacity
- Charger price.
Those who have already purchased this charger and use it, according to statistics, are the least likely to return this device. In a compact case with a capacity of 2600 mah, the practicality and durability of use are perfectly combined with the low price of the device. After purchasing such a battery, you can forever forget about the problem of charging if you have it on hand outside the home.
Having such a device, you can charge your tablet or smartphone just on the street or in the subway, in public transport. It is ideal for active people who have to communicate a lot on the phone, as it will always come to the rescue in case of phone discharge. They can charge phones of any model, including the iPhone. tablets and navigators, cameras and photo cameras and many other types of digital technology.
Characteristics of Power Bank
Where to buy such a portable device?
Most often, a pocket battery can be buy in online stores, there is always a quality and reliable portable Power Bank in stock. On the websites of stores there are often interesting promotions and offers, the color and design of products may differ from those shown in the photo. This mobile charger will become an indispensable item for many people who make the most of their smartphones.
Modern smartphones and tablets are equipped with more and more capacious batteries. But power consumption is also growing, because under the body of the device are hidden powerful processor, a lot of all kinds of sensors and modules, and the picture is displayed on a huge display. That's why you can easily buy . Such an accessory will allow you to extend the duration battery life several times. But only if you do not lose your choice.
The best Powerbanks with a capacity of not more than 10,000 mAh
Xiaomi Mi Power Bank 5000
- Capacity: 5000 mAh
- Price: from 699 rub
The Chinese company produces very good accessories for smartphones. In particular, portable batteries are very popular. Mi Power Bank 5000 does not have the largest capacity, but even enough to fully charge any smartphone. And the process will not take much time - a current of 2.1 A is supplied to the USB connector available here. The battery itself is recharged in 3.5 hours, and its minimum dimensions and weight (156 g) allow you to throw the accessory into your pants pocket.
Main features:
Xiaomi Mi Power Bank 2 10000
- Capacity: 10,000 mAh
- Price: from 990 rubles
In Chinese online stores, this PowerBank is most often ordered. Its capacity is increased, in connection with which the input current is also increased - therefore, it is not necessary to assume that the battery will be charged for a very long time. The Chinese introduced a lot of protective equipment here, and the body was left metal. The weight of the accessory is 228 g, which is a little more than the mass of many modern smartphones.
Main features:
HIPER SP7500
- Capacity: 7 500 mAh
- Price: from 790 rubles
HIPER SP7500 has two USB connectors, which allows you to simultaneously charge two devices at once. But these should not be tablets, since the capacity of this battery cannot be called huge. The maximum current that can be supplied to the second connector is 2.1 A, while the first is limited by the standard value. This power bank has a plastic case and weighs less than 168g.
Main features:
- Two connectors for charging the device.
- One of the connectors produces increased current strength.
HIPER XPX6500
- Capacity: 6 500 mAh
- Price: from 750 rubles
Typically, manufacturers of portable batteries save on the charge indicator. But not in the case of HIPER XPX6500. This model uses a full display as an indicator, which allows you to see accurate readings and is equipped with a flashlight. To charge devices, a USB connector is used, which outputs a current of up to 2.4 A.
Main features:
- Relatively small size.
- Excellent charge indicator.
- Very high output current.
Cactus CS-PBMS028-5000
- Capacity: 5000 mAh
- Price: from 1 190 rubles
An excellent choice for owners of just one smartphone, running with a modest battery. This model immediately attracts attention due to the metal case and unique design. The remaining characteristics of the accessory are quite standard - they include two color options and one USB connector with a current of 1 A.
Main features:
- Nice design.
- Modest dimensions.
- metal case.
- Curiously implemented charge indicator.
The best power banks up to 15,000 mAh
Huawei AP007
- Capacity: 13,000 mAh
- Price: from 1 850 rubles
The capacity of the battery installed here is enough for two or three full recharges of the smartphone. First of all, the accessory is sharpened for phones and tablets from. But it does a great job of recharging other devices as well. In extreme cases, protection will work here - it reacts to overheating, short circuit and overload. The only drawback of the portable battery is its heavy weight, reaching 325 g.
Main features:
- Two USB ports for charging gadgets.
- Numerous security technologies.
- Metal case.
- There is a charge indicator.
- Capacity: 13,000 mAh
- Price: from 1 160 rubles
The battery capacity is enough for two or three full recharges of the smartphone. First of all, the accessory is sharpened for phones and tablets, but it also charges other gadgets without any problems. There are several LEDs on the case for convenient display of the amount of charge. The downside of a portable battery is a large weight of 380 g.
Main features:
- Nice price tag.
- There is a charge indicator.
- Capacity: 12,000 mAh
- Price: from 1 790 rubles
This model can easily cope with charging smartphones, tablets and other gadgets. And to make this process faster, there is a fast charging technology. Qualcomm Quick Charge 2.0. At the end there are several LEDs for convenient display of the amount of charge, in addition, this model weighs only 250 grams, which is not much for such a battery size.
Main features:
- There are two USB ports for charging gadgets.
- Compact size.
- Light weight.
- There is a charge indicator.
The best power banks with a capacity of 15,500 mAh and above
HIPER XP17000
- Capacity: 17,000 mAh
- Price: from 2 590 rubles
With its impressive capacity, the accessory turned out to be very thin, and it cannot be called large. It has a pair of USB ports, which output a current of 1.3 and 2.3 A. And the battery itself is capable of charging at a current of 3 A, which makes this process unusually fast. You can also find various indicators on the accessory - they are located at the bottom of the front panel.
Main features:
- Relatively light weight for such a container.
- Elegant appearance.
- There are different indicators.
- High output current.
- The battery itself charges in a short time.
Xiaomi Mi Power Bank 2 20000
- Capacity: 20,000 mAh
- Price: from 1 390 rubles
The product of the Chinese company Xiaomi is characterized by support for Qualcomm Quick Charge 3.0 fast charging technology. This allows you to charge devices that also have this technology in the shortest possible time. And the external battery itself charges very quickly, which allowed it to get into our top. As befits such an advanced accessory, Xiaomi Mi Power Bank 2 received a lot of protective technologies that turn off the process in case of overload, overheating or short circuit.
Main features:
- Built-in support for Qualcomm Quick Charge 3.0.
- There are two USB connectors.
- Lots of security tech.
- There is a charge indicator.
- Very high capacity.
Pineng PN-999
- Capacity: 20,000 mAh
- Price: from 1 790 rubles
Excellent external battery designed for both phone and tablet. The charge level, like some other parameters, is displayed here on a digital display, complemented by a blue backlight. To recharge gadgets, two USB connectors with different current strengths are used. The battery itself can be recharged using network adapter, which produces a current of 2 A. Another advantage is the presence of a flashlight - it can come in handy at any time.
Main features:
- Protection against short circuit and overheating.
- Detailed charge indicator.
- There are two USB ports on the end.
- One of the connectors has a high current.
- There is a flashlight.
Best power bank for laptop charging
Rombica NEO PRO280
- Capacity: 28,000 mAh
- Price: from 7 990 rubles
One of the most advanced external. The built-in battery, made using lithium-polymer technology, has an unusually high capacity. This would be enough even for several recharging of the tablet! But first of all, this external battery is designed to connect a laptop. This is evidenced by at least the package, which includes as many as 10 different adapters for laptops. It also contains two charging cables (the first and second Magsafe). There is also a charger for the battery itself, which delivers a very high current, and is connected using a round connector. Of course, you can also charge smartphones and tablets using Rombica NEO PRO280 - two USB ports with different current strengths are provided for this.
Main features:
- There are two USB ports and a universal connector.
- You can even charge a laptop - there is enough current.
- The accessory itself charges quickly enough.
- Huge supply of energy.
- Very rich set.
The best secure power bank
- Capacity: 10,000 mAh
- Price: from 1 170 rubles
Protected portable battery RM-3499DC received a compact protective case in camouflage color, charging cable and complete. The manufacturer promises that this gadget can withstand 500 charge cycles.
Main features:
- Two USB ports.
- Protective case.
- There is a complete car charger.
Conclusion
For some time now, external batteries have been produced in huge quantities. Therefore, do not think that our list is complete - you can easily find other good accessories in stores that can show themselves quite worthy. We have considered only the most popular options that collect a lot of positive feedback. Buy yourself one of these accessories - we guarantee that you will definitely not be disappointed in your purchase!
Excluded from selection
Rombica NEO AX120L
- Capacity: 12,000 mAh
- Price: from 2 290 rubles
This portable battery for smartphones and tablets has an adequate cost and a very small thickness. At its end there are two USB connectors at once, which allows you to connect a couple of gadgets. At the same time, both of these ports provide a maximum current of up to 2.4 A. The incoming current can also be high, due to which the battery itself is charged in a very reasonable time. Included with the accessory is a case that slightly simplifies transportation.
Main features:
- Metal case;
- Extremely thin thickness
- Two connectors for charging gadgets;
- Both connectors are receiving high current.
HIPER SPS10500
- Capacity: 10 500 mAh
- Price: from 2 790 rub.
Almost any external phone battery suffers from one problem. You can forget to take a cable for it, with which gadgets are recharged. And only HIPER SPS10500 is designed in such a way that it is free from this drawback. The cable here extends from a special compartment - that is, it is always with you. At its end is a special plug that combines micro-USB and Lightning connectors. This allows you to use the accessory, including for recharging the iPhone. The maximum current is given out with a power of 2.1 A - this should help to charge even a tablet in a short time.
Main features:
- There is a charge indicator;
- The cable cannot be lost;
- One cable allows you to charge two devices at the same time.
Gmini GM-PB156L
- Capacity: 15600 mAh
- Price: from 1 950 rub.
A relatively small external battery that got into our rating due to many positive reviews. Its end is a haven for two USB connectors and a bright LED that acts as a flashlight. Different currents are supplied to the USB ports - 1 A and 2.1 A. Unfortunately, the accessory itself charges slowly, since it does not support a high input current.
Main features:
- There is a flashlight;
- You can charge two devices at the same time;
- High current on one of the connectors;
- There is a charge indicator.
DEXP SLIM XXL
- Capacity: 20,000 mAh
- Price: from 1 899 rub.
Inexpensive product, produced by order of the Russian trading network. It has quite tolerable dimensions, and even managed to reduce the weight with a high capacity - up to 385 g. The digital display shows the current charge level. The number of USB ports has been increased to four - this is the number of devices that can be charged at the same time. The current output to these connectors is 1.0 A and 2.1 A. The accessory comes with a cable, at the end of which there are two connectors at once - micro-USB and Lightning.
Main features:
- Very high capacity;
- Small dimensions and weight for such a capacity;
- As many as four USB connectors;
- Clear charge indicator.
S-Freedom SF-10000w
- Capacity: 10,000 mAh
- Price: from 2,990 rubles.
This battery is packed in a kind of case, which includes rubber pads. All connectors are closed with plugs, and you can pull out the main part of the structure from the case only after unscrewing the screws. All this should protect the protected external battery from problems that may arise in field conditions. With such protection, you can even say that this power bank is waterproof. It weighs 263 grams. To recharge gadgets, they use two USB connectors with different current strengths. And the device is able to please the built-in flashlight.
Main features:
- Two USB ports;
- One of the connectors outputs high current;
- The waterproof and shock-resistant case is used;
- There is protection against overheating and other troubles;
- Built-in flashlight.
According to the unwritten law of meanness, the mobile phone is always discharged at the most inopportune moment. As a rule, the smartphone loses its entire charge when you need to urgently find something on the Internet, call someone or accept an important message. Well, if there is a socket or laptop at hand, from which you can at least slightly recharge. But what if such a nuisance found far from stationary energy sources? Fortunately, the developers of portable electronics found a way out of the situation by releasing external batteries to the market (they are also called Power Bank). There are several types of such batteries, each of which is designed to recharge a particular device: smartphone, tablet, e-book. However, in this review, we will talk about how to choose an external battery for a smartphone, because it is these gadgets who most often “betray” their master at inappropriate moments.
What is an external battery and what are its types?
In its device, Power Bank is a portable lithium-ion or lithium-polymer battery, which has a certain capacity. These batteries transfer charge to batteries. mobile devices(in our case, smartphones). Them main feature It is that they are able to store the charge along a long time period. Another unifying factor is the compactness of such devices. They can be carried to work with you to work, take on long trips and tourist trips. The modern market has the most different models external batteries, which may differ from each other:
- capacity;
- forms;
- interface;
- dimensions;
- color;
- material;
- the presence of additional design elements.
- Individual boxes- the most common version. Such devices always have a nice design and compact dimensions. The main advantage of boxes of any shape is that they can have a solid capacity, which is enough to completely replenish the charge of several phones at once (their exact number depends on the battery capacity of the smartphones themselves).
- Wrist bracelets- A modern and truly unique design option. Such devices are easier to carry (no need to allocate a separate place for them in a bag or pocket). Moreover, such technical innovations look quite stylish. However, they have one significant flaw: the low battery capacity. Thus, such models are designed to partially replenish the energy reserve so that the user can perform several important operations on the phone. Such products will not be able to fully “feed” the battery of modern mobile devices (unless you charge a rather old smartphone model).
- From an outlet or laptop. Models charging in this way are the most common. The principle of operation is as simple as possible. The user connects the Power Bank to a network or laptop via a USB cable. For a certain period of time, the battery draws energy from a connected source. When the energy supply is fully restored, a special light comes on (although there may be other types of signal).
- From the built-in dynamo. Without exaggeration, this is a rather unusual way of charging. With such a device, the user rotates a special handle that produces electricity. The main disadvantage of such devices is noise: during rotation there will be a strong buzz that distracts others. Among the advantages, one can single out a decent battery capacity, long-term charge retention and, of course, a positive effect on the small muscles of the hands (a Power Bank of this kind will replace a carpal expander).
- From the sun. This is probably the most modern option for replenishing energy reserves. Such batteries play the role of a miniature solar station equipped with special lenses. These lenses capture the rays and convert them into electricity. Similar models are very popular in the territory of hot countries, where the scorching sun is commonplace. Almost any Power Bank of this kind has a solid capacity that allows you to charge both smartphones and tablets from it. Moreover, the presence of such an external battery significantly saves home electricity. The only negative is that the catching lenses require close care, otherwise the device will stop working.
What to look for when buying a Power Bank?
There are many factors to consider when purchasing an external battery for your smartphone. We will consider 5 fundamental aspects that will help you make the right choice.
- Battery capacity- this is without exaggeration the most important indicator of the quality of such products, affecting their practicality and, accordingly, the price. To measure capacitance, a special unit is used - milliamp hours. The modern market is filled with batteries of very different capacities: from several hundred to several tens of thousands of milliamp hours. Choice specific model directly depends on the battery of your mobile device. According to experts, a Power Bank is considered suitable if its energy reserve exceeds that of the phone by at least 20%. If you want to use a battery that is enough for several charges, then you need to give preference to analogues, whose capacity exceeds the volume of a telephone battery by at least 3 times.
- Current strength- a moment that directly affects the charging speed. The unit used to measure current is the ampere. In order for the smartphone to charge relatively quickly, the Power Bank must have a force equal to at least 1 ampere. If you do not comply with this criterion, you risk getting a battery that will replenish the energy supply longer than a stationary power grid.
- Compliance with the declared capacity of the actual. Unfortunately, not all market players are honest. In order to attract buyers, they go to all sorts of tricks. One of the most common methods is the artificial increase in the performance of the product. For example, 10,000 mAh may be declared on the package, but in practice it turns out that the battery has only 7,000 charge. An additional concern is the fact that among all external batteries more than 70% decorate with incorrect characteristics. Of course, reduced capacity is not always the result of tricks. The battery may lose some of its capabilities if the rules of transportation and storage are violated. For this reason, it is recommended to always check whether the declared capacity corresponds to the actual one. To do this, you need to use special devices. It is clear that such a check can only be carried out in a regular store, where the goods are in front of your eyes. If the purchase is made via the Internet, you must consider whether a particular online store provides a return and exchange service. Only in this way will you save yourself from wasting money.
- Self-discharge ratio of an external battery. This is another extremely important point. As you know, any technical product wears out over time, and its operational capabilities fall. In this regard, Power Bank is no exception. With prolonged use, the battery capacity begins to decrease, as a result of which the number of charges that can be carried out suffers. Information regarding the self-discharge coefficient should always be checked with consultants before purchase. But there is one "pitfall" - not a single consultant will tell the whole truth on this issue. Here it is better to be guided by a simple pattern: the volume of high-quality batteries drops by 10-15% per year; as for cheaper analogues, in 12 months they lose from 30 to 40% of their capabilities. In addition, it is worth remembering that in the absence of practical application, the accumulated charge is also consumed. Expensive batteries lose up to 10% of their energy in 14 days. Cheap models can lose up to 30% of energy over a similar time period.
- Number of ports to connect. If you live alone and want to use the "energy bank" personally, one USB port enough for you (even if you have two smartphones). If you have a family where everyone needs a work phone, it is better to buy models equipped with multiple connection jacks. Also, 2 or more ports may be needed if you decide to go camping with a group of friends. Naturally, the volume of such portable chargers should be appropriate.
The most popular models of external batteries
Knowing the above information will come in handy when buying a portable battery for a smartphone, but knowing the most best models such devices will further simplify your choice. Consider best brands external batteries separately:
- i Power 6- This is enough compact device, which can be worn in your pocket. It has a cylindrical shape. The declared capacity of such a device is 2600 mAh. It has 6 sockets of different standards at once, so iPower 6 is suitable for many types of portable gadgets.
- SC-A120- one of the most compact models available on the market. The charge volume is quite small - only 1900 mAh, so this device is suitable for replenishing a small amount of energy (for example, to make a couple of important calls). The battery is equipped with several types of sockets that could connect different mobile devices. Its highlight is the presence of two conductive paths to replenish the energy reserve. The first way uses the energy of the sun, the second - electricity from the outlet.
- iPower13- An improved version of the first device. This model has a larger capacity - 8400 mAh. In addition, the case has rubberized inserts, which makes it shock resistant.
- Gigabyte Power Bank OTG G66B1- a practical option for an external battery with a capacity of 6600 mAh. Mobile devices are connected via a standard USB input, as well as via a micro-USB socket.
- Metrans Power Bank- very good model, the energy volume of which is 10400 mAh. The body of the device is made of aluminum, which makes the whole structure more durable. This Power Bank supports simultaneous charging of two smartphones at once. As for personal energy recovery, it takes about 6 hours.
- Xiaomi Power Bank is a battery that is rapidly gaining popularity. Already today, several variants of this model have been released, and the minimum battery capacity is 5400 mAh. This is an ideal option for smartphones of the same brand.
- Xiaomi Power Bank 16000- the best external battery of 2017 (at least for now). By the name it is clear that this product has a charge of 16000 mAh. This volume is enough for both the phone and the tablet.
Actual number of external battery charges
Many inexperienced users incorrectly calculate the number of possible charges. In particular, they believe that if they have a 9000 mAh external battery and a 3000 mAh smartphone, they will be able to use the “energy bank” three times and increase the charge of their device from 0 to 100%. Actually it is not. Let's find out what such people forget to consider.
- Battery self-discharge- The moment mentioned above. Even when Power Bank is not used, its energy is consumed. Of course, in high-quality models this happens slowly, but anyway, after disconnecting the external battery from the power source, it begins to lose its energy reserve.
- The difference between the output voltage of the smartphone and the battery during charging. As a rule, this indicator for phones exceeds the similar value of “energy banks”. In order to replenish the energy reserve quickly, each Power Bank is equipped with a special circuit that artificially increases its output voltage. The result of this increase is that part of the available energy is spent on maintaining the charging process, and not on charging itself. This means that the phone does not receive about 30 % of the potential charge.
The price of external batteries for smartphones
The price of external batteries for a smartphone in Russia starts from 600-700 rubles. These are the smallest models. Batteries with a solid capacity cost 1500-1600 rubles.
So we have analyzed the main aspects that will help you choose the right Power Bank. As you can see, there is nothing particularly complicated in this process. However, it is always worth checking the characteristics of the product and giving preference only to products from reliable manufacturers. This will save you from buying a low-quality technical product. The following video review is also devoted to the methodology for the correct purchase of "energy banks":
