External batteries for smartphones. How to choose a portable phone charger? The main reasons why you just need to choose a new charger

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? The way out is to use an external battery (power bank). The Internet project "Be mobile" has collected tips that will help you choose the 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.

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 being charged by 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.

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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

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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. 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

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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.

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The real capacity is also affected by such an indicator as self-discharge.

On average, external batteries with fully charged within two weeks they 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 charge level, almost all Power Banks use 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

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Some models of portable chargers have several USB ports for connecting two, three or even more mobile devices at once. 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

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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

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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

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If universal options are not your option, then you should pay attention to models with additional features. 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

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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.

Every year new smartphones appear, more and more powerful and voracious. Innovations in the field of batteries are not yet foreseen, which means that a power bank (power bank, external battery, portable battery) remains the only way out for those who often live far from outlets.

What is the difference between external batteries

Portable power supplies, unlike the same smartphones and other types of advanced technology, cannot boast of a special variety. And this is quite logical. Batteries - they are batteries, but you still need to know something about them.

Capacity and related dimensions

The most important parameter of an external battery is its capacity, which is usually indicated by the manufacturer in milliamp-hours (mAh). Roughly speaking, this is the amount of energy that a battery can store (but not transfer).

Please note: due to the fundamental laws of physics, no external battery can transfer 100% of the stored energy and no smartphone is able to fully assimilate the received energy. Part of the resource is always lost during voltage conversion, and some goes into heat.

On average, the combined losses are between 30 and 40%, although some (and usually more expensive) models of external batteries and smartphones can boast about 90% efficiency.

Thus, it is incorrect to determine the number of possible charges of a smartphone with a known capacity of a built-in battery from a power bank with a known capacity using a simple division. The loss factor must be taken into account. Moreover, for reinsurance, it is better to take it along the upper limit, that is, at least 35%.

To put it simply, a power bank with a declared capacity of 10,000 mAh in practice will transfer about 7,500 real mAh, which means it will fully charge a smartphone with a 2,500 mAh battery not four times, but only three.

Please note that the above calculation is very average and quite optimistic. Check real losses when charging specific smartphone from a specific external battery is possible only in practice.

In addition, physics requires a direct relationship between the capacity and mass of the power bank. To store more energy, the battery needs to be heavier and bigger.

Connectors

The vast majority of external batteries, and especially, are sold without cables. It is assumed that you will use the wire that comes with the smartphone. Accordingly, the connectors on the battery and cable must match.

It may seem that you don’t need to pay attention to the connectors, because all smartphones have the same wire with a standard full-size USB on one end and microUSB on the other, but this is not the case.

For example, the bundled Nexus 5X cable has USB-C on both sides. And in order not to buy additional wires, you will have to look for an external battery with just such a connector, both output and input, or purchase an adapter.

Kanex GoPower Slim Aluminum USB-C

Some manufacturers, such as Motorola, include a plug with a non-removable wire in the package of certain smartphone models. In this case, the purchase of an additional cable is inevitable.

There are power banks with a built-in cable. In this case, it is important to make sure that the connector fits your smartphone.

EasyAcc iChoc 5000 mAh Ultra Slim

Power bank output current and fast charging

The external battery charges the smartphone, and it's great. It's even better if he does it quickly, right? The charging speed depends on many parameters, but the output current of the power bank is decisive. It should be no less than that provided by the smartphone manufacturer.

It is easy to find out the optimal current strength for your smartphone. Take the plug that came with the device and look at the OUTPUT value.

Output current

It will say something like 5 V - 2 A. You need the number next to A because current is measured in amps.

You can find out the output current of a power bank in the description or instructions. If an external battery has more than one output connector, then the current strength is sometimes indicated directly on the case next to each connector.

HP 7600 mAh Power Pack Slim Portable

If there are two or more connectors, you need to remember that the total output current of the power bank is limited. For example, a battery can have two outputs of 2.5 A each, but give out no more than 4 A in total. Accordingly, when two devices are connected at once, each of them can receive no more than 2 A.

If the output current of the external battery is less than that for which the smartphone is designed (for example, 1 A for a power bank and 1.5 A for a smartphone), then charging will still occur, but noticeably slower.

There is no need to be afraid if the output current of the external battery is higher than that for which it is designed mobile device(for example, 2 A for a power bank and 1 A for a smartphone). Mobile devices have built-in protection that limits the value of the incoming current to an acceptable value. Simply put, your smartphone will not explode or melt.

For the same reason, the mobile device will not charge faster if you use a plug or power bank with an output current higher than that provided by the manufacturer.

Let's say you found an external battery with a suitable output current, but the included plug still charges your smartphone faster. What's the matter? Most likely, your smartphone supports some kind of accelerated charging technology like Quick Charge 3.0, Quick Charge 4.0, or a variant with its own name from a specific manufacturer (for example, mCharge from Meizu). Look for a power bank that is friendly with exactly the same fast charging technology that is used in your smartphone.

Now power banks with smart fast charging technologies like PowerIQ are gaining popularity. In theory, they recognize the device connected to them and supply the optimal current for it, but in practice this does not always work and not with all smartphone models.

External battery input current

Whatever capacious external battery you buy, its own energy supply will be exhausted sooner or later. It's nice when a power bank quickly charges a smartphone, but it's even nicer if it charges quickly itself.

The charging speed of a power bank is determined by its input current, voltage and the presence of one or another technology that provides more rapid replenishment of its own charge. There are now external batteries that can be fully charged in less than 30 minutes.

Please note: the power bank's own charging speed does not affect the speed at which it charges the smartphone.

But the lack of understanding of technology and gaps in knowledge of English can mislead the user. For example, you see a power bank that says something like 5 minutes charge. You might think that this miracle device charges a smartphone in 5 minutes, but in reality everything is different.

Let's say the capacity of a particular battery is 10,000 mAh and it fully charges in 20 minutes. In this case, in 5 minutes it will replenish approximately 2,500 mAh. And this charge is really enough to charge a typical smartphone.

The problem is that the charging time of a smartphone is limited by its own maximum input current and the presence of support for one or another fast charging technology.

Simply put, the pompous phrase 5 minutes charge actually means: “This power bank needs 5 minutes to get the charge it needs to fully charge the smartphone.” Do not get caught on marketing noodles and upgrade your technical literacy.

The best external batteries

Lifehacker invites you to compile a reader's top powerbank. Write in the comments the names and characteristics of the models that you use, and your opinion about them. If there is already a comment with your model, plus it and supplement it with your experience of use.

The models that get the most positives will be included in the "Best External Batteries of 2017" selection, which we will publish.

Other guides for choosing equipment from Lifehacker.

Power Bank is one of the most popular types of accessories for smartphones, tablets, cameras and even laptops. Not a single active user of mobile devices can do without external batteries, because, despite the multifunctionality and the introduction of the latest technologies, the battery reserve of most devices is melting before our eyes, which is very inconvenient not only when traveling and during outdoor recreation, but also in Everyday life. After all, not everywhere and not always you can find a free outlet, and if you do succeed, you will have to spend a lot of time waiting for the phone or other portable device to finish charging.

A properly selected Power Bank saves the situation. These compact, relatively light and easy-to-use accessories make it easy to charge compatible devices anywhere in the world and even on the go. It is enough just to connect the external battery to an iPhone or other device and put the charging device on a flat surface or back into the bag. At the same time, most Power Bank models are very versatile due to the complete set with various adapters and the ability to connect the branded cord of the device being charged. However, not every external battery is suitable for absolutely all gadgets, even with a wide selection of cables. In addition to compatibility with the required connectors and useful additions, it is also recommended to pay attention to the capacity and maximum output current of the models, because it is these indicators that determine how much and how soon the Power Bank will charge the device and whether it will charge.

The best inexpensive external batteries up to 10,000 mAh

Although there are many external batteries in stores for several tens of thousands of rubles, in most cases you can easily get by with a basic solution costing from 500 to 1500 rubles. The capacity of such developments does not exceed 10,000 mAh, they are mostly devoid of additional functions, their equipment is usually limited to a micro USB adapter, and the output current is relatively low, which is why they are hardly suitable for charging a tablet or laptop. However, the capabilities of such a Power Bank are quite enough for the normal charging of most smartphones. At the same time, low-power models are often characterized by minimal weight and original design.

5 HARPER PB-2602

Profitable price. The easiest
A country:
Average price: 500 rubles.
Rating (2019): 4.3

Compact battery in the form of a stylish keychain weighing only 65 grams will become the best option for those who are energetic, love comfort and are constantly on the move. With a wide choice of colors and a stylish strap, the miniature Power Bank is convenient to take with you, because it can be easily turned into an unusual accessory for a bag or backpack, and even put into a small ladies' clutch.

Of course, so small device will not charge a powerful laptop, but the capacity of 2200 mAh is enough for a mobile phone or camera. According to the reviews, this is really the best a budget option, although not the most capacious. Despite the modest price, the development of a well-known Chinese company received a charge indicator, USB type A, micro USB type B inputs, and even a micro USB cable. The battery is quite versatile and can charge any smartphone. In general, this is good and inexpensive solution for every day, designed for quick recharging of not too energy-consuming devices.

4 Ritmix RPB-5800LT

Waterproof case
A country: South Korea (made in China)
Average price: 1,252 rubles.
Rating (2019): 4.4

External batteries are useful for hiking and traveling. That's just, charging a smartphone or tablet on the go, it's easy to get caught in the rain, drop the Power Bank into water or spill juice on it, thus losing the essentials. To avoid a catastrophe, a waterproof case will save the vital parts of the batteries. Such practicality is rarely found in such devices, and therefore it is a very valuable quality.

Water resistance is the main, but not the only advantage of Ritmix. The gadget is also equipped with a bright lamp with four useful modes: maximum, medium light, minimum and flashing. SOS signal. Surprisingly, even with constant use of the flashlight, the battery lasts for 130 hours. After all, a capacity of 5800 mAh is a good indicator, especially in combination with an output current of 2.1 A. An excellent bonus will be a convenient handle and a magnet, thanks to which Ritmix is installed on a metal surface.

3 Canyon CNE-CPB78

Simultaneously charge two devices
Country: China
Average price: 1,190 rubles.
Rating (2019): 4.0

The most capacious external device in the ranking is Canyon CNE-CPB78. Its 7800 mAh can charge a standard smartphone 4-6 times. This is ideal for long trips when there is no access to a power outlet. The type of built-in battery is Li-Ion, which perfectly tolerates frost without losing its capacity.

Charges the model very quickly with a maximum output current of 2A. However, a common complaint from users is low speed charging the external battery itself. And this is not surprising, because the input current is only 1A.

The Canyon has two USB connectors, and the kit includes a regular USB cable and a micro USB adapter. With such a device, you can charge two completely different devices.

Externally, the plastic device looks stylish and neat. Dimensions of 65mm by 100mm make the device the most compact in the TOP-3. A nice addition to the Canyon CNE-CPB78 is a flashlight.

Feedback from user Dmitry:

Very powerful external battery. Perfectly charges devices more than once. For those who take for the city, there is no point in such power, but I often go on business trips. Two outputs are also pleasing, I simultaneously charge a smartphone for work calls and a smartphone player. At the same time, there are no glitches, overheating, etc. The flashlight came in very handy, because in the dark you don’t need to search, install by touch. Of the minuses: disgusting cable for charging. I had to buy another, because this one practically does not charge anything. And the battery itself is also charging very slowly, although this is logical, but I would like it to be faster.

2 Xiaomi Mi Power Bank 5000

Best selling budget battery
Country: China
Average price: 1,290 rubles.
Rating (2019): 4.5

Xiaomi Mi Power Bank 5000 is one of the best-selling inexpensive external batteries. Second place in the ranking of the best "state employees"!

The capacity of 5000 mAh is enough for 2-3 recharging of ordinary smartphones. It charges the power bank from Xiaomi very quickly, with a maximum output current of 2.1 A. It takes 3.5 hours to charge the external battery itself with an input current of 2A. Users note this in the main pluses.

The battery type is advanced Li-Polymer, which makes the device lighter. However this model weighs 156 grams due to the durable aluminum body. At the same time, the size is not large - 125 mm by 69 mm, and the thickness is 9.9 mm.

Li-Polymer batteries do not tolerate cold well, but thanks to a well-thought-out case, the Power Bank 5000 can withstand temperatures from +60 to -20.

The battery is protected from overheating, short circuit and overload, making it completely safe to use. Among the additions to the device is not only the usual USB cord but also micro USB.

Feedback from user Igor:

I charge Xiaomi Mi Power Bank 5000 iPhone 6, the battery lasts almost twice. Does not heat up. Looks pretty nice, but most importantly reliable. I am completely satisfied with this model, especially for such a price it cannot be better. Of the minuses - it is heavy for a pocket in pants, but since the model is small, it is convenient to put it in a jacket.

1 Xiaomi Mi Power Bank 2S 10000

The best balance of cost, capacity and features. Suitable for tablet charging
Country: China
Average price: 1,190 rubles.
Rating (2019): 4.9

Introduced relatively recently, this affordable model quickly became one of the best external batteries rated by users and took a prominent place among the record holders for the number of positive feedback. The key to the success of the Xiaomi power bank was, first of all, the successful combination of an adequate price, an honest capacity of 10,000 mAh and features that are rarely found in budget segment. Power Bank 2S, unlike many analogues, allows you to charge two devices at once and even supports the Quick Charge 3.0 fast charging function. Thanks to these advantages, the model copes with its tasks really quickly.

At the same time, the maximum output current of Xiaomi reaches as much as 2.4 amperes, which means that the external battery can easily charge not only a smartphone, but also a tablet. Also, the advantages of the development, according to reviews, include a fairly thin metal case, nice design, strength, good assembly, miniaturization.

The best external batteries with a capacity of 10,000-16,000 mAh

Powerbanks with a capacity of more than 10,000 mAh can be called a real golden mean and the best ratio of features and price. Not the cheapest, but not the most expensive either, representatives of this category are not only suitable for multiple phone charging, but are also often designed for parallel charging of several devices. At the same time, they are powerful enough to work with both a smartphone and a tablet, a camera, and sometimes a serious laptop.

Also, many external batteries of medium power are not without indication of the charge level and other useful additions. At the same time, they are noticeably lighter and more affordable than their more capacious counterparts.

4 MOMAX iPower Air

Support wireless charging
Country: China
Average price: 2,500 rubles.
Rating (2019): 4.5

Reminiscent of a small MP3 player, this power bank with a practical classic design is surprisingly modern. After all, the manufacturer awarded it with the latest technology - a built-in wireless charging module. At the same time, it is suitable for both iPhone and other Qi-enabled devices, as well as for wired charging of any other smartphones and even tablets. A very good capacity of 10000 mAh, combined with an output power of 2.1 A, makes this model suitable for urgent charging of a completely discharged device.

The presence of two standard USB connectors, a micro-USB input and wireless charging allows you to simultaneously charge multiple phones, as well as other devices. This is one of the safest batteries, because it is reliably protected from misfortunes such as short circuits and even overheating, which will prevent damage and prevent the user from getting burned by touching an overheated device.

3 ASUS ZenPower ABTU005

fast charging
Country: Taiwan
Average price: 1,890 rubles.
Rating (2019): 4.5

The declared value of the maximum ZenPower current is 2.4 A, while for the other two devices from our rating this value is 2.1 A. In fact, the amount of energy delivered by the ASUS ZenPower ABTU005 device turned out to be higher than that of the other two models from Xiaomi.

The pocket battery is protected from overheating and power surges, which ensures safe and reliable operation.

In terms of appearance, the ASUS Power Bank looks almost the same as the Xiaomi batteries that are presented in our ranking. The difference is somewhat shifted charging indicators and usb connectors, as well as less rounded corners of the device.

2 HIPER MP15000

Card reader function and flashlight. The most extensive selection of adapters
A country:
Average price: 1,714 rubles.
Rating (2019): 4.8

The British power bank with a recognizable design wins you over at first sight, because it is one of the very few options with a really clear indicator. The large luminous display with the image of the battery clearly shows how much percent of the charge is left. In addition, this Power Bank is not deprived of rare useful additions - a flashlight and a card reader. The former will undoubtedly come in handy in nature and at home, while the latter will appeal to those who charge an external battery from a computer or TV, because Hiper can be charged in parallel and work with memory cards.

It is also important that this model has become the most versatile representative of its kind. The set of adapters compatible with micro USB, mini USB, Lightning, Apple 30 pin and Nokia connectors will allow you to charge devices of all famous brands from Samsung and Sony to iPhone and Nokia out of the box without buying additional cables. At the same time, an external battery is often praised for its reliability and convenience.

1 ZMI QB815

The best set of features and connectors. Powerful enough to charge a laptop
Country: China
Average price: 3,110 rubles.
Rating (2019): 4.9

Power Bank with a classic aesthetic design has become the most practical and simply the best solution in the middle class. A capacity of 15000 mAh combined with a maximum current rating of 3 amps makes this external battery an excellent choice for working with any personal device: from a smartphone to a tablet and even a powerful laptop, which not every power bank can charge. An important advantage of ZMI is support for fast charging according to the USB Power Delivery standard, which means that the model will help save a lot of time.

At the same time, the leader of medium-capacity devices received much more connectors and additional cables than most analogues. Two USB connectors, adapters to micro USB and USB type-C help you easily charge a variety of personal devices, including in parallel. Also, reviews often separately note the presence of overheating protection, short circuit protection, overload protection to prevent damage to the external battery.

The best external batteries with a capacity of 20,000 mAh

Powerbanks for 20,000 and 30,000 mAh - the best choice for business people, energetic travelers, hikers and anyone who wants to forget about the existence of sockets for a long time. External batteries of this power are designed for about 7-10 full-fledged recharges of the smartphone battery, which means that once charging the Power Bank, the user can easily do without sockets for a week or two, and if the devices are not used too actively, even longer.

At the same time, external batteries of this type, as a rule, are compatible not only with smartphones, but also with tablets, cameras, laptops and support parallel charging of several devices.

3 HIPER SPX20000

High battery recharge rate. Versatility and USB Type-C support
Country: China
Average price: 2,950 rubles.
Rating (2019): 4.7

The novelty of the English company, which appeared on sale only at the beginning of this year, is rapidly gaining popularity due to its impressive technical characteristics and relatively small dimensions for this category. Despite a moderate weight of 388 grams, this external battery boasts not only a capacity of 20,000 mAh, but also an output current of up to 3 amperes and support for fast charging, which significantly speeds up the replenishment of the battery of smartphones and more serious equipment. After all, a large supply of charge and power allow you to use Hiper for a variety of tasks.

Also, the advantage of the model was the presence of a USB Type-C connector, which is compatible with the cables of many gadgets. At the same time, the novelty also has its own adapter, designed to connect to mobile devices with a micro USB connector. It is this connector that most modern smartphones and tablets are equipped with, which means that Hiper is one of the most versatile representatives of the class.

2 HIPER SP20000

Best price
A country: UK (made in China)
Average price: 1,910 rubles.
Rating (2019): 4.7

Unlike the previous representative of the HIPER company - EP6600 - this model does not stand out with such a striking design. Before us is an ordinary white bar with a standard set of ports (2 USB for charging devices and Micro-USB for charging the battery itself), a power button and a charge level indicator. But it is worth paying tribute to the engineers - the case is non-staining, durable, scratches practically do not appear during operation.

According to the technical characteristics, there is little interesting: a capacity of 20,000 mAh, a maximum current of 2.1A. There is no fast charging, but enough for tablets. As a result, we have a practical, reliable and high-quality external battery for device owners without support for fast charging technology, who do not want to overpay for unnecessary features.

Advantages:

Practical housing
Slightly lower cost
Correspondence of real characteristics to the declared

1 Buro RA-30000

The best battery capacity at a reasonable price. Great choice for most devices
A country:
Average price: 1,900 rubles.
Rating (2019): 4.8

Although the Buro external battery is not the only Power Bank with a capacity of as much as 30,000 mAh, only this development is sold at a fairly pleasant price, for which it was awarded the title of the best representative of the category, as well as many positive reviews. Users not only willingly recommend the domestic device for purchase, calling it the optimal ratio of cost and capacity, but also give it high marks for build quality, honesty specifications and great work. Also, Buro is often praised for its compatibility with most devices. After all, thanks to the high maximum output current and outstanding battery capacity, this Power Bank can easily cope not only with a phone or camera, but also with a rather demanding gaming laptop.

In addition, in this external battery there was a place not only for basic functions, such as parallel charging of two devices, but even for a flashlight. All this makes Buro a very useful item for any occasion.

The best external batteries with fast charging support

iPhones and many more modern smartphones equipped with a very useful option - a quick charge function that can significantly speed up the process. However, this feature is completely useless if the power bank does not support the same fast charging standard as the device being charged.

This category presents the best external batteries, complemented by this important feature. Manufacturability and versatility have become their characteristic features, because most of them are equipped with a good set of adapters, and some are also rich in connectors.

4 ZMI QB805

The lightest, thinnest and most affordable model. Support for modern iPhones
Country: China
Average price: 950 rubles.
Rating (2019): 4.5

The ability to easily take the Power Bank with you anywhere often tops the list of main criteria for choosing devices of this type. It is this feature that distinguishes the practical and inexpensive development of ZMI from many others. The external battery of a well-known Chinese company has become not only the thinnest, but also the lightest member of our review. The thickness of 8.72 mm allows you to fit this power bank not only in an ordinary bag, but also in a small clutch and even a pocket. Weighing only 113 grams, the ZMI won't be a heavy burden. Of course, comfort also has a downside - the capacity of the external battery does not exceed 5000 mAh. Nevertheless, this is usually quite enough to charge the phone, which is confirmed by positive reviews.

At the same time, despite the low price and miniaturization, Power Bank is very functional and supports not only conventional, but also fast charging. Also, this ZMI model received a good set of adapters, including Apple 8 pin and micro USB.

3 INTERSTEP 10DQi

Stylish new 2-in-1: fast charging and wireless charging support
A country: Russia (produced in China)
Average price: 4 990 rubles.
Rating (2019): 4.5

Interstep 10DQi is the perfect solution for those who do not want to choose between a power bank and wireless charging, because this development combines the best features of both. This new 2019 10,000 mAh battery, unlike wireless charging, does not need to be constantly plugged into an outlet. Its advantage over ordinary external batteries is also obvious - the smartphone battery can be replenished without using a cable. All you have to do is place your Qi-enabled phone face up on the charger surface. At the same time, the domestic Power Bank is also equipped with adapters, which means it is suitable not only for iPhones and other smartphones with support for wireless technology, but also to work with any other mobile devices.

Although the model appeared quite recently, it has already earned a lot good reviews. Customers highly appreciate the functionality, design and convenience of Interstep, note the efficiency when charging the latest iPhones and Samsungs.

2 Xiaomi Mi Power Bank 2 10000

The most popular. Rugged metal housing
Country: China
Average price: 1,390 rubles.
Rating (2019): 4.6

Our rating could not help but include the most popular external battery that received the most positive feedback from consumers. Everyone notes the high build quality, reliable metal case, optimal dimensions, low weight, reaching only 228 grams, and, of course, the excellent capacity of the development of the world famous brand.

The gadget is capable of storing 10,000 mAh for a long time and is capable of delivering 2.4 A of current. However, do not worry about safety when charging low-power devices. The battery offers two modes of operation: charging at high power and charging at low power. Therefore, the user can easily configure it for both electronic clock or headset, and for an iPhone and even a laptop. At the same time, Xiaomi can be called shockproof. During testing, the company's specialists made sure that it can withstand a fall from 80 centimeters. Designed for 5000 cycles, the gadget does not lose record time in capacity.

1 TopON TOP-MAX2

Outstanding capacity and 4 USB in a futuristic design. Charging laptops
Country: China
Average price: 6,790 rubles.
Rating (2019): 5.0

Maximum efficiency, capacity and intelligence, this futuristic design power bank is a real boon for those who often need to charge multiple devices at once. With a capacity of 30,000 mAh, TopON's development energy is enough for many charges, even if we are talking about full-fledged ones. gaming laptops. In addition, this power bank is incredibly versatile and easy to use. Equipped with a practical USB Type-C input, a dedicated orange fast charging port and two additional USBs, this modern appliance Easily cope with the parallel charging of four devices. A clear LED screen shows the current operating mode and remaining battery power.

Also among the advantages of the model are an adapter for a micro USB connector, a retractable stand for comfortable placement of a charging device and support for most fast charging technologies. In addition, users highly appreciate this Power Bank for its reliability and long service life.

The best external batteries for iPhone

iPhone connoisseurs often think about purchasing an external battery, because the battery capacity of apple developments is not too large, and the entertainment possibilities are almost limitless, which is why the charge often runs out faster than we would like. But choosing the best Power Bank is not so easy.

External batteries are most often equipped only with a micro USB adapter, which fits most smartphones, but not an iPhone. Apple devices can only charge a Power Bank that supports the Lightning connector, also known as 8 pin, for iPhone 5 and later generations, or 30 pin for earlier models.

4 SITITEK Sun-Battery SC-09

Possibility of converting solar energy into electrical energy. Versatility
A country: Russia (produced in China)
Average price: 1,990 rubles.
Rating (2019): 4.5

Sititek Sun-Battery is a unique combination of modern technology and environmental friendliness. This is not just an external battery, but a Power Bank with a solar battery. The main difference of this accessory was the ability to charge it not only from the outlet and the computer, but also from sunlight. For the last type of charging, you only need to put the external battery with the side on which the solar panel is located, towards the light and wait a bit. Of course, it will take a little longer than replenishing the battery from a 220-volt network, but with the Sun-Battery, you can charge an iPhone even in an open field far from civilization.

Among other things, strong point Sititek has become a versatility. Power Bank is equipped with a record number of adapters. Thanks to five different cables, the power bank is suitable not only for iPhones with a Lightning connector, but also for old Apple developments that need an adapter for an Apple 30 pin, as well as for all smartphones with micro or mini USB connectors.

3 SmartBuy Turbo-8 Lightning

direct iPhone connection. budget
A country: Taiwan (made in China)
Average price: 460 rubles.
Rating (2019): 4.5

A bright battery in the shape of an elegant cosmetic bag will definitely interest Apple technology enthusiasts looking for a cheap gadget for easy and fast charging of new products exclusively from the apple brand. Against the background of analogues, the gadget stands out by the absence of the need to carry additional adapters and adapters. After all, the battery is not equipped with connectors, but with a built-in tip for the Lightning connector, that is, Apple 8 pin. Therefore, to charge any iPhone, starting with the iPhone 5 and 5S, you only need to take this small unit with a nice backlight with you.

Despite the simply ridiculous price, the Taiwanese model with a capacity of 2200 mAh produces 2.1 A of current at the output, which is not often found among the middle segment. Therefore, SmartBuy charges many times faster than many state employees. The protection against short circuits and overloads has also become a plus. Thanks to it, the system turns off at unacceptable loads, which makes the battery safe.

2 Deppa NRG Art 5000

The best design solutions
Country: China
Average price: 1,635 rubles.
Rating (2019): 4.6

Some batteries will be chosen only by ladies, others will appeal to men, but this model will suit everyone. Unlike everyone else, Deppa offers over a dozen original design variations from the universal wave to the menacing bear, mosaic, stripes, cities, flowers and butterflies. Such a battery will become not only an indispensable assistant, but also good addition the image of its owner.

Technical capabilities are not inferior appearance gadget. The capacity of 5000 mAh is complemented by an output current of 2 A, which means that it will please with a decent amount of energy and speed. The manufacturer has equipped the Power Bank with two USB inputs, which means that it is suitable for working with two devices at once. And the presence of an adapter for Apple 8-pin, also known as a Lightning connector, will make it easy to charge any modern iPhone. Another good news is that Deppa has a small slot for storing this adapter, so you will never lose it.

1 Mophie Powerstation with Lightning connector 5050mAh

The most compact external battery for iPhone. Lightweight and metal body
A country: USA (made in China)
Average price: 3,282 rubles.
Rating (2019): 4.7

Nothing complements a spectacular and expensive device better than a stylish accessory. The new Mophie external battery, designed specifically for Apple technology, is perfect for this role. A representative metal case with an aesthetic design and fashionable colors looks like an iPhone. At the same time, it is quite compact and weighs only 136 grams, which means it will not seem overly bulky, and most importantly, it will easily fit in a pocket or cosmetic bag. Therefore, it is easy to transport and convenient to store.

This Power Bank was designed specifically for Apple and will perfectly charge not only the iPhone, but also various accessories for it, for example, AirPods or Apple Watch. Two USB ports allow you to charge any two devices in parallel. At the same time, the Mophie external battery copes with its work an order of magnitude faster than many analogues with a capacity of just over 5000 mAh, because its maximum output current reaches 2 amperes.

How to choose the best external battery

Choose an external battery to charge your electronic devices not so difficult. There are few parameters to pay attention to. The main ones are listed below.

Battery capacity. Main characteristic. If you just need to keep your smartphone “life” until the end of the working day, a 5000 mAh battery will suffice. Gathered on a hike for a week - look at models with a capacity of at least 10,000 mAh. The following characteristic directly depends on the capacity
Dimensions. Fragile ladies are unlikely to want to carry an extra half a kilogram in their purse. Therefore, you should pay attention to the size and weight of the power bank. More capacity - more weight and size indicators.
Current strength. 1A is enough to charge a smartphone. For a tablet, 2.1A is desirable, otherwise charging risks being delayed or simply not starting.
Support fast charging function. If your device supports any fast charging standard, it is advisable to choose the appropriate external battery as well. If the battery itself charges quickly - generally excellent.
Number of connectorsUSB. If you plan to charge a couple of devices at once, choose models with two USB ports.
Protection. It will be very frustrating if your brand new external battery catches fire. Choose high-quality models with protection against short circuit, overload and overheating.
Tests and reviews. If possible, look at the tests of the model before buying. It may be that the actual characteristics will differ significantly from those declared by the manufacturer.

The main reason for the appearance of portable USB power banks was the increasing use of mobile technology, the energy level of the built-in batteries of which lasts for less time - on average, half a day or a day. Every year, new smartphones and phablets enter the market, with an increased diagonal, saturated screen brightness, increased productivity, more support more sensors, while the battery remains the same capacity. A large screen with high resolution and high pixel density (PPI), a touchscreen with a wide diagonal are the main factors for high power consumption and fast discharge of the smartphone. To charge such gadgets in the absence of a wired power grid, portable external power banks were developed.

IN modern world a trip on a business trip or a trip, going on vacation - to nature, fishing or hunting is not complete without a power bank portable charger. In the absence of an electrical outlet, as well as other sources of energy, a portable power bank becomes indispensable for uninterrupted communication for a long time, you can not worry about watching a movie in the evening or chatting with it. in social networks leave a voracious smartphone or phablet without energy.

The average weight of a portable external battery is 150-300 grams, and the capacity is 2500-30000 mAh, compact models are able to recharge a smartphone one or two times, and the use of capacious portable USB power bank will allow you to restore your smartphone battery up to 10-20 times. Most models of external USB powerbanks are equipped with a full-size USB port and come with a USB-MicroUSB cable, and external batteries are also available with a USB Type C connector. Top-of-the-range portable power bank batteries can also be equipped with adapters for charging laptops. Often for convenience on the front panel of a portable powerbank battery Additionally, there is a power level indicator, as well as a built-in LED flashlight.

Working principle of portable power bank charger

A portable power bank charger will easily restore the energy of the connected gadget up to required level when the mobile device's own battery is depleted. The universal power bank charger is equipped with one or more batteries connected to the controller board, which also has connectors for charging the portable power bank itself and connected mobile equipment.

The service life of a portable power bank charger directly depends on the quality of the batteries and materials used in its composition: the better the components used in production, the more reliable its design and the longer the portable power bank charger will please the owner. Also, the operating mode of the universal power supply has a significant impact on the lifespan.

do not allow deep discharge of the battery (this can lead to its complete failure);
charge only with currents not higher than those indicated on the usb power bank (energy recovery with high currents leads to a reduction life cycle batteries);
do not charge and try not to use at negative or high temperatures (in such conditions, the capacity, operating time and efficiency are reduced).

Thus, when choosing a universal external usb battery, we strongly do not recommend choosing the cheapest models - there is a risk of purchasing a low-quality device. Cheap USB power banks may contain inaccurately assembled elements, low-quality parts, due to which the gadget may fail prematurely.

Features, differences and characteristics of power bank

Portable power banks are available in various sizes, with a variety of design, design features, but are evaluated and differ in the main characteristics:

current when charging connected devices (output current) ;

Consider these features, differences and power characteristics bank for details.

Selecting the capacity of the external battery

The capacity of the external battery of the powerbank is the most important characteristic, showing how long the power bank is able to be a source of energy for connected equipment. Simply put, it shows the number of times that a portable additional battery will recharge the connected gadget using its own energy. Capacity is measured in milliamp hours (mAh).

When choosing the capacity of a universal portable external battery, we recommend that you follow the rule: it should be selected 2 to 2.5 times the size of the battery of the device being charged. For example, when choosing a power bank for iphone X, the built-in battery capacity of which is 2716 mAh, we advise you to purchase an additional battery for iPhone with a capacity of 5000-1000 mAh - this is enough for one or two full recharges so as not to be left without communication with regular use iPhone.

It should also be taken into account that the actual capacity of universal external usb batteries, indicated by the manufacturer, is given taking into account the voltage of the built-in batteries of 3.7 volts. And when you connect a mobile gadget to a portable power source, the current is transmitted with a voltage of 5 volts. In mobile technology, batteries with a voltage of 3.7 V are used. Thus, during charging, a double voltage conversion occurs: first, turn the bank from 3.7 V to 5 V and then the connected device from 5 V to 3.7-4.2 V, the losses during this conversion are 20- thirty%. For example, if you charge a tablet with a 10000 mAh battery with a portable charging power bank with the same battery, then the energy of an external usb battery will be enough to restore the phablet battery by only 70-75%.

The best choice of external battery power bank for budget smartphone there will be a compact power bank with a capacity of 5000-10000 mA / h, it is small, it will allow you to comfortably use the device for several days, you can carry it in your pocket or small bag. Users productive smartphones and tablets usually purchase a power bank for a smartphone with a capacity of 10,000 - 20,000 mAh. For long business trips, hikes, trips or travels, powerful power banks with a capacity of 20,000 - 30,000 mAh are better suited.

Charge current for connected devices (output current)

The current strength is measured in Amperes (A) and is considered the main indicator characterizing the efficiency of charging an external battery. The output current strength shows how quickly the connected equipment will be recharged. Portable batteries use a USB connector with a 1A output and a USB connector 1.5 - 2A for more demanding tablets.

up to 1 A - cell phones (not smartphones), wireless headphones, bracelets, and other accessories;
1–1.5 A - most smartphones, GPS navigators, portable recorders and other stand-alone devices;
2–3.6 A - smartphones with capacious batteries and tablet PCs.

The rate of energy replenishment is also affected by the charge controller of the connected device, which will limit the current strength if it exceeds the value set by the manufacturer. For example, a smartphone Sony Xperia Z3 controller is set to 1.5 A limit: when this smartphone is connected to an external portable battery with a port of 1 A and 1.5 A, the current will not be limited, and when connected to a port with a current strength of more than 1.5 amperes, the smartphone will still consume no more than 1.5 A. For each gadget, the restrictions are different, in some rare cases (often on cheap Chinese technology) there is no protection at all, so we strongly do not recommend connecting to powerful ports without first checking compatibility. The easiest way to check compatibility is by looking at the specifications of the device being charged or at the charger (charger) supplied with it - if the current on the complete charger corresponds to the output current on the external battery port (or slightly exceeds - by 0.1-0.5 A) , then you can safely charge mobile equipment with an external power bank battery. For example, iPhones are equipped with a 1 A charger, and with Apple tablets iPads come with more powerful 2 A SZUs. Therefore, we recommend charging the iPhone with a universal external battery for iPhone with a 1 A port, and with iPad tablets it is better to use an external battery for iPad with a 2 A port.

Owners modern gadgets with a capacious battery, we recommend choosing a universal external battery with fast charging and a current of at least 2 A, since the connected device will be charged slowly by a portable power bank with a lower current (or not at all with constant use of the device being charged).

To find out the current strength before purchasing a universal portable battery, you should look at the marking next to the USB port - 90% of external power banks have information there. Some universal external batteries for mobile devices are equipped with Quick Charge technology (quick charging). Such additional batteries are capable of charging the connected device with increased voltage but reduced current strength, so it is possible to charge the smartphone battery up to 50-60% in just 30-40 minutes (if the smartphone supports QC technology).

Power bank charging current (input current)

The universal power bank is charged using the microUSB connector located on its body or in latest models more modern USB Type C connector. The power recovery rate of a portable portable battery depends on the voltage and current when it is connected to a power source. The current strength is influenced by two factors:

what current can the charger give;
how much current can powerbank consume.

To charge the battery of a USB power bank, we recommend purchasing network (SZU) or car (AZU) chargers for 1-2 A. This charger is enough to fully and quickly replenish the energy of a universal powerbank charger. It should be borne in mind that external power bank batteries have different maximum input current and it is better to select a charger taking this feature into account. Some models of external batteries with fast charging support the Quick Charge function, which allows you to recharge them with increased voltage much faster.

LED flashlight. Useful option to help you navigate easily in the dark or during a power outage. When choosing a large powerful power bank for long trips, hikes and frequent trips, this feature is highly desirable. A power bank model with a flashlight is preferable than without it - an LED flashlight can help out at an unexpected moment;

Second USB port. In capacious external power sources, the presence of a second USB port is also highly desirable and will allow you to charge two devices at the same time. In addition, in batteries with two usb outputs and increased strength current at the output of the second port, it is possible to quickly charge powerful devices, for example, a phablet Apple iPad;

Charging an external battery from the network. By default, power bank batteries are charged from a computer or laptop via a USB port, but if you charge them in this way, it will take a long time, so it is preferable to be able to restore the energy of an external USB battery using an SZU (connected to the network). alternating current), which will allow you to quickly restore the capacity;

Charge indicator. Shows information about the remaining energy level of the external power bank. The display of the residual level is a useful feature, since having known it in advance, a fully charged power bank with a charge indicator will help you not to get into trouble in a difficult situation - left with a planted smartphone and a discharged portable power source;

Recessed into the body of the button to activate the battery. A useful feature that helps to avoid accidentally turning on or off the external backup battery;

The presence of a solar panel. The option will be useful for those who like to travel, hike in nature or in the mountains - in all cases when it is not possible to charge even a portable power bank for a long time. Thanks to the presence of a solar panel, it is possible to recharge a portable battery using sunlight, but it is worth noting that the efficiency of solar panels is 12-25% and restoration by solar energy will be slow.

The need for this or that additional function in a portable power source depends on the use case. Of the most useful features, we recommend looking at the presence of a charge level indicator(will help to avoid unpleasant situations), flashlight(will help out at any time) and second USB port for capacious powerful power banks when using multiple devices. It is also worth considering that the presence of each option increases the price of a portable power source.

Interesting models with original solutions:

usb power bank with digital indicator Energizer Power Bank UE10018 digit screen 10000;
universal charger power bank with a flashlight-night light Remax Power Bank Proda Power Box 30000 mAh black ;

Choosing an external battery manufacturer

There are external batteries from many manufacturers on the market, but among them are: Xiaomi, Remax, Rock and Energizer. Let's take a closer look at these companies.

Xiaomi Power Bank External Batteries

Among the manufacturers of external batteries, the leading place is occupied by the Chinese company Xiaomi.

The position of Xiaomi and the founder of the company, Luei Yun, is that excellent, high-quality, easy-to-use technology should not be expensive, so the price Xiaomi devices often only the costs of materials and manufacturing are included, there is no “brand” component that increases the final price for the consumer. Xiaomi strives for perfection when releasing devices, wanting to create premium quality products for maximum comfort consumers. Through regular innovation, testing, implementation of fresh ideas, faith in innovation and the support of fans, it becomes possible to release fresh, interesting, unique gadgets. Therefore, it is not surprising that the release of each new product causes a stir among fans of the brand. Xiaomi produces high-tech gadgets at a surprisingly low price, most of them are positioned as a product, the price of which includes only the cost of materials.

Rock Power Bank Portable Batteries

Portable external battery for phone power bank

If you need a portable external battery for phone power bank, which is enough to charge the gadget 1-3 times, portable batteries will be suitable for Xiaomi phone capacity 5000 mAh:

Xiaomi Mi Power Bank ZMI QB805 5000 mAh

The high quality of the components used in Xiaomi portable batteries and the attractive price make them the best choice. Other portable external batteries for the phone are available for purchase in the catalog.

Additional external battery for smartphone

The best choice of an additional external battery to restore the energy of a smartphone would be Xiaomi power banks with wireless fast charging function and a capacity of 10000 mAh, such an additional power source is compact, fits in a pocket or small bag, allows you to comfortably recharge your devices wirelessly for several days. Recommended Models:

Additional external battery for a smartphone with support for fast charging Xiaomi Mi Wireless Power Bank Youth 10000mAh

;

Portable external battery for iPhone in a plastic case with support for fast charging Xiaomi Mi Power Bank ZMI QB805 5000 mAh silver ;
One of the most affordable and best external batteries for iPhone Xiaomi Redmi Powerbank 10000mAh white;
Portable external battery for iPhone with QC function Xiaomi Redmi Powerbank Fast Charge 20000mAh white ;
Extra battery power bank for iPhone in rugged case made of ABS plastic Xiaomi Mi Power Bank ZMI QB810 10000 mAh white ;
External power bank for iPhone with Quick Charge 2.0 support in a case made of durable ABS plastic Xiaomi Mi Power Bank 2C PLM06ZM 20000 mAh white.

In our catalog, other portable external batteries Power Bank for iPhone are presented for purchase.

Universal external battery for tablet and powerful smartphone

When using powerful smartphones and tablets, it is recommended to purchase additional power bank batteries with a capacity of 10000-20000 mAh, suitable for these purposes:

Universal external battery for tablet and powerful smartphone ZMI Power Bank QB822 20000mAh 2-way fast charging digital display 27W

Large powerful power bank for travel and hiking

For long hikes, business trips, trips or travels, large powerful power banks with a capacity of 20000-30000 mAh are suitable, allowing you to fully recharge your smartphone up to 15-20 times, and your tablet up to 5-6 times. Such additional energy sources do not need to be recharged frequently - large capacity allows you to replenish the power of other gadgets for a long time. We advise you to choose.

Modern mobile devices and all kinds of gadgets are equipped with many fashionable and useful features and applications. Yes, and the most difficult mobile games amaze with graphics and possibilities. It is thanks to such applications that any smartphone "sits down" almost during the day. Therefore, you need to learn how to choose a more powerful one for your phone. Or pick up an extra

The main reasons why you just need to choose a new charger

So, the phone began to discharge frequently and quickly. First you need to decide on the main cause, and only then look for the most optimal ways to solve the problem. So what could be the reasons for early discharge?

If the smartphone or tablet is new, the instructions state a certain duration of operation, but in fact, the device works several times less, then the reason may lie in the settings. As a rule, on the phone itself, you can adjust the brightness and energy consumption, or turn off several applications that draw power.

Another thing is if the smartphone is set up, it worked quite normally for a long time, but over time it began to discharge much faster. Here, most likely, the internal charger or the external battery of the phone is to blame. The only solution is to replace the element. To do this, you can use both a proprietary battery and a universal analogue.

Types of external batteries

Despite the prevalence cell phones and smartphones, there are only three main types of batteries in the world so far:

Li-ion. This is perhaps the most common external battery for charging your phone. It has a more optimal ratio of durability, safety and energy intensity than other analogues. Also, such elements are endowed with a special “memory effect” and are discharged rather slowly. But they quickly age, and even in the case of constant use.
Nickel-cadmium. Recognized as the most harmful and were put on the shelf. They were used only in the very first phones because of the low cost. In addition, the higher their energy intensity, the higher the physical size.
Lithium polymer. These are cheaper and improved external batteries for cell phones. Therefore, such elements adopted all the positive aspects of the original sample, and also became more environmentally friendly.

Features of work and operation

A mobile phone is a fairly complex and delicate mechanism. And each of its elements has its own characteristics and requires certain operating conditions, including the battery itself. Therefore, there are several rules, following which, you can significantly extend the life of the telephone battery:

When using, it is required to strictly follow the operating rules specified by the manufacturer, i.e. do not overheat, do not wet or overcool.
Try to avoid physical damage to the element.
External do not endure frequent blows and falls.
You should not open the batteries yourself for the sake of interest.
Replace and recharge the battery only when the device is turned off.
It is not recommended to constantly charge the gadget for a long time (more than a day).
The more and more often the battery is used, the better.

Myths about mobile batteries

Throughout the existence Cell phones practically overgrown with various fictions and legends that frighten naive users. Several of them touch on their most important detail.

Parameters to pay attention to when choosing chargers

When choosing an additional external battery for your phone, there are many factors to consider (in addition to the manufacturer and the quality of the materials). As a rule, experts identify several main parameters by which these elements differ. Therefore, knowing these features, you can choose the appropriate option.

The capacity of the presented battery. The operating time without additional recharging directly depends on it. As a rule, 4000-6000 mAh is enough.
Current strength. If the battery is used to power not only a smartphone, then you need to choose a device with a power of 1-3 A. For a regular phone, a device that produces 1 A is enough.
Charging method. It is better to choose a gadget that can be powered from several sources at once: an ordinary power supply and via a USB connector.
Battery indicator. This element is simply necessary in the daily operation of smartphones and phones. There are several options for displaying the charge: by changing the color or numbers. The numerical indicator provides much more accurate information about the state of the battery, but it also costs much more.
Number of ports used. Thrifty and prudent users choose specimens with the largest number of them. But, as a rule, the need to charge several devices at the same time is quite rare. Therefore, 2-3 ports are sufficient.

A few things to look out for when choosing batteries

In addition to the main parameters that you need to pay attention to Special attention, there are several additional qualities. They can greatly facilitate and extend the operation of the presented gadgets.

It is best to choose an external battery for the phone, on which the power button will not stand out against the background of the case. After all, if you press it by accident, you can get a rather unpleasant surprise. It will also be useful to have a special flashlight in the device to make it easier to find in the dark.

In order to protect a valuable thing from the ingress of all kinds of dust or water, as well as to protect against small bumps, you need to choose devices with a special case. Such devices will cost a little more, but their service life will be clearly longer.

Fans of modern innovative technologies will appreciate the presence of such features as Wi-Fi and NAS Server. With the help of them, you can not only freely use and distribute the Internet, but also save various data on a special memory card.

Useful for any battery and After all, in the summer we are not always near any power source.

To purchase a quality battery that will last long enough, you should approach this issue with all seriousness. Before making the final choice, you need to familiarize yourself with the most common options, compare features and reviews. And only then it will be possible to buy for the phone.

First of all, this device should be convenient, light and compact enough to fit freely in any bag.
A charger from the same company as the main device will fit much better than similar counterparts. In addition, in this way you can protect yourself from low-quality goods.
It is better to clarify in advance whether a return of a purchase is possible, and under what conditions. The charger may simply not be corny.

Comparison of the most common external batteries

There are many external telephone batteries. There are probably as many of them as there are mobile devices themselves. In this case, everyone chooses their external battery for the phone. Reviews are what attention is drawn to in the first place. Therefore, here are some subjective opinions about the most popular models:

Vampire mini. There is a standard USB connector. It is convenient to adjust the current and voltage. Among the shortcomings - low efficiency.
boost stabilizer. This battery charges almost all known mobile devices, and can also be charged from any power source. The only downside is that it needs outdoor unit batteries.
Specialized energy storage device "Proglot". Universal battery. It has a variety of dedicated connectors for all kinds of devices, and the internal batteries can be easily replaced. Minus - in the absence of adapters.

Universal external battery

As the world's all-knowing statistics show, almost every city dweller has two or more mobile devices, as well as a laptop and several other gadgets. Therefore, many seek to purchase a universal external battery for the phone, but in such a way that it fits other devices.

Such a choice allows you to kill several "hares" at once: the ability to charge all available gadgets from one device at the same time, saving money and space. At the same time, the operating rules for such devices are the same as for narrowly focused batteries. In addition, modern stores can offer a huge number of different batteries in terms of price, characteristics and quality. Therefore, this is the most optimal choice for any user.

It is not necessary to buy an additional power source for a smartphone. If desired, and with certain abilities, you can easily make a homemade external battery for your phone.

The most common homemade products are charging from batteries and from the sun. Each of them has its own characteristics. In the first case, you need a resistor, a suitable plug, 4 batteries and a special box for them. The principle of operation is simple - a resistor connects the power supply to the plug and transfers the charge to the mobile device. The downside is that the batteries need to be changed constantly.

In the case of solar charging, you can simply buy special flashlights that are charged from the sun, and take the necessary elements from there. Further, a circuit is connected by means of a diode, and the structure is refueled into some box.