How to choose an external battery: overview of characteristics and step-by-step selection instructions. How to choose an external battery: overview of characteristics and step-by-step instructions for choosing Which power bank is better to buy

Modern smartphones and tablets are equipped with such power that computers did not have just yesterday. However, if computing power does not stand still, the situation with batteries is much worse. In 2017, phones are equipped with batteries that offer only 1-2 days of autonomy in mixed use. And under heavy load, the smartphone may not last until the evening.

External batteries come to the rescue - Power Banks. These are compact devices that are created with a single purpose: to accumulate charge and charge external devices. Our selection on Galagram includes the top 10 best external batteries for your mobile equipment that you can buy in 2017.

1 The most capacious battery is Xiaomi Power Bank 2 with 20,000 mAh

Main features

• large capacity 20,000 mAh
• output 5V/2.4A
• manufacturer Xiaomi

This battery comes in a plastic case and, despite its relatively compact dimensions, offers a huge capacity about 20,000 mAh. High-quality lithium polymer batteries are installed inside, and the output voltage and current are 5V/2.4A. Using the Xiaomi Power Bank 2 with a capacity of 20,000 mAh, you can charge even high-voltage devices such as the Apple iPad and even Mi Book Air and MacBook laptops.

In addition, it supports fast charging in both directions: for receiving and for sending. The dimensions of this monster are 135.5x67.6x23.9 mm, and weight is 330.5 grams. Not very small, but it can charge your smartphone with a 3000 mAh battery more than 4 times. With such a gadget, you don’t have to worry about autonomy at all. The average cost of such a power bank is $39.

2 Solar powered power bank for travel

Main features

• solar charging
• built-in LED flashlight
• magnetic compass
• good capacity 12.000 mAh

A huge advantage of this solution is the ability to charge the external battery itself not only from the network, but also using solar energy. Solar-powered power banks will appeal to those who travel a lot, as they are convenient to use on the road and over long distances.

In our ranking of the best, the battery is 12,000 mAh, with dimensions 139x75x20 mm, weighing 230 grams and with a case protected from moisture. Of course, on its front side there is a solar battery for charging, and on the end there are three ports: micro USB for charging the power bank itself and two regular USB for charging external devices. The estimated price in China is $15.

3 Mi Power Bank Pro - external battery with fast charging functions

Main features

• fast charging Qualcomm Quick Charge 3.0
• capacity 10.000 mAh
• charging via USB Type-C port

If charging speed is critical for you and you can’t wait long for all your devices in the house to charge, pay attention to the Mi Power Bank Pro. Its nominal capacity is 10,000 mAh, and fast charging technology is responsible for quickly charging your gadgets Qualcomm Quick Charge 3.0.

This gadget is charged via a USB Type-C cable and has four LED indicators on the body to display charge status. UMB Mi Power Bank Pro is offered in two colors: graphite black and women's pink. You can purchase such a battery for about $30.

4 Power bank with flashlight and protected case

Main features

• The housing is protected from moisture and dust
• two powerful flashlights
• capacity 10.000 mAh
• There is a carabiner for attaching to a backpack

If you love wild nature, but can’t imagine your vacation without a smartphone, it’s time to get an external battery with a flashlight and additional case protection. This solution has a capacity of 10,000 mAh, several colors to choose from and advanced features such as a solar panel and built-in double lantern to illuminate the area.

As you may have guessed, the flashlights are powered by the power bank itself. By the way, its body has moisture protection, so you don’t have to worry if you spill coffee on it or drop it into the lake while fishing. The output voltage here is 5V/2A, and the battery weight is 290 grams. You can buy the device on Aliexpress for about 15-16 dollars.

5 Power bank with speaker for music lovers

Main features

• playing music from microSD card and smartphone
• charging gadgets
• AUX output

A true music lover always has music with him. Chinese manufacturers have prepared especially for audio lovers Power Bank with built-in speaker and the ability to play music. The model is called Piple S5 and offers not only playing music from a microSD card, but also charging your gadget.

Among the useful features on the body of the power bank speaker are: a 3.5 mm audio output, a port for charging equipment, an AUX output and music control keys. You can even play melodies from your smartphone via Bluetooth 4.0. The issue price is $39.

6 Power Banks with wireless charging

Main features

• the ability to charge compatible gadgets wirelessly
• output 5V/1A
• thickness 1.9 cm
• capacity 10.000 mAh

This type of external battery can charge not only smartphones and tablets via a traditional cable, but is also equipped with technology QI wireless charging. It can be used to charge small gadgets such as smart watches, fitness bracelets and more.

The capacity of this battery is 10,000 mAh, the current and voltage are 5V/1A, and the dimensions are 135x75x19 mm. This model is available in several colors, including white, gray and black. The average cost is $39, but you still have to pay extra for wireless charging.

7 External battery with PISEN screen

Main features

• capacity 20.000 mAh
• presence of LED display
• output 5V and 1/2A

Another power bank in our ranking of the best is the model Pisen with a built-in display for indicating and displaying various indicators. The advantage of this solution is that you know exactly how much capacity is left in your universal mobile battery.

This particular model has a nominal capacity of 20,000 mAh (18,600 mAh), a plastic body, a monochrome display itself, and two ports for charging smartphones and tablets. The output voltage here is 5V, and the current is 1-2A, depending on the port. The Pisen power bank weighs 475 grams and costs about $32-35.

Any person at least once in his life has encountered the battery of an urgently needed electronic device that was discharged at the wrong time, and many of us experience this kind of trouble regularly.

The way to solve the problem is simple - you just need to get a compact external battery, recharge it in a timely manner and don’t forget it at home when going on business. We offer you a rating of the best external batteries of 2018 - the first half of 2019, based on reviews from experts and ordinary buyers. Just don’t forget - to choose the best external battery, you need to realistically assess your needs and choose a device with optimal capacity. As a first approximation, its value should be twice as high as the corresponding battery indicator of the gadget that is supposed to be charged most often.

External battery capacity - what does it mean?

When indicating the rated capacity for their external batteries, manufacturers write the truth, but not the whole truth. For example, the 13,000 mAh declared for the Canyon CNE-CPB130 actually has a built-in battery. Only you can fully charge a smartphone with a 4,000 mAh battery with such a power bank only twice. The fact is that the nominal capacity here means the energy reserve accumulated by the device’s battery at its operating voltage. In this case, it is approximately 3.7 volts, which is noticeably lower than the value defined by the USB specification. And to the extent that mobile equipment has to be charged through this particular interface, the internal voltage is converted to standard 5 V with a proportional decrease in the available capacity. In addition, part of the energy is spent on the operation of the corresponding electronic circuit. For reference, current external batteries use lithium-ion (3.6-3.7 V) or lithium-polymer (3.85 V) batteries, and the efficiency of the converters ranges from 0.9 to 0.95.

Thus, knowing the “capacity” of the batteries of a power bank and a smartphone, it is easy to calculate how many times you can charge the second device with the first device. To do this, the nameplate value of the capacity of the external battery must be multiplied by the operating voltage of its own battery (if the type is unknown, take 3.6 V), divide by 5 volts of the USB interface, and multiply the result by the efficiency (set to 0.9). As a result, we will get the useful capacity of the device, which can be used when charging.

To complete our example, we have (13000 * 3.7 / 5) * 0.9 = 8658 mAh, which is enough for two full charges of, say, Xiaomi Redmi 4X with its 4,100 mAh battery. And there will still be a little left “in reserve.”

Portable external batteries for recharging mobile devices, which were still a curiosity ten years ago, are now very popular. But the need to use them is different for all people. We can say for sure that the more “mobile” a person’s lifestyle is, the more he needs this device.

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And if for those who relax on weekends by the river, this is simply a desirable attribute, then for hikers this is already a mandatory item of equipment: being left without navigation, light and communications in a deep forest is not the best prospect. An additional battery will also be useful for frequent travel due to business needs, as well as for long trips or flights (but in the latter case, you need to keep an eye on whether they are prohibited from being carried in hand luggage; the rules may change at any time).

There is a good English term for them in the world (power bank), but they haven’t come up with an equally short Russian term for them. The name “external battery” is most often used, but longer ones are also found: “universal external battery”, “portable external battery”, “portable charger”. And in everyday life they are often called simply “power banks”. This is what they will be called in our review (for brevity).

Today we will conduct a mass test of eight devices with medium and high energy reserves (with a capacity of 5,000 mAh).

They are all from different manufacturers (Chinese, of course). And although the circuit and technical solutions here are largely standardized, the devices still turned out to be different. What they have in common is that they are all officially supplied to the Russian Federation. And this is a good sign: importers do not want problems with sales and claims from retail, so they test samples of products before purchasing a batch.

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And so that the test results are perceived correctly, I will begin the review by stating several almost obvious postulates that are valid for all external batteries:

1. All “power banks” contain a battery charge controller and an output voltage converter (since the output voltage is not equal to the voltage of the battery(s) actually used there, and it must be raised or lowered). The need for conversion (in a typical case - to a voltage of 5 V) is the main source of efficiency loss (losses on key transistors, on rectifier diodes, on the resistance of winding elements, etc.).
2. The capacity of “power banks” is indicated by the nominal capacity of the battery installed in it, and not by the one supplied to the load (which is always less, since the efficiency of the converter cannot be one hundred percent).
3. The nominal capacity of the battery inside the “power bank” may not coincide with the actual one - like all radio elements, batteries have a nominal tolerance. Usually no one indicates the tolerance value, but it can be taken for approximately +/- 10% (this also depends on the integrity of the manufacturer).

From these postulates comes the conclusion that it would be naive to hope to fully charge a phone, for example, with a 4,000 mAh battery, using a portable battery with a capacity of the same 4,000 mAh. This can happen in absolutely fantastic cases, when the capacity of the battery installed in the “power bank”, due to technological variation, turns out to be significantly higher than the nominal value. And there is no “cheating” in this: it’s physics!

A few words about determining the efficiency of devices in the “fast charging” mode (when the output voltage increases above 5 V) and the difference from the calculation in the “normal mode”. In normal mode (supply voltage 5 V), the smartphone battery in most cases is charged with exactly the current that comes from outside (with small losses in the controller). But in the “fast charging” mode, the incoming power is converted to the current and charging voltage of the smartphone battery that is optimal for this without harming the battery. That is, the incoming power is used almost to the maximum.

In this regard, the efficiency for normal mode was calculated as the ratio of the supplied capacity of the “power bank” to its nominal value. If the manufacturer overestimates the capacity in the parameters, then he will ruin his own reputation by reducing the efficiency. And for the “fast charging” mode, the efficiency was determined by the transferred energy in Watt-hours (the transferred capacity was multiplied by the voltage at the output of the “power bank” in this mode).

The energy of the device under test was also determined from the nominal value of the “power bank”, and the battery voltage was taken to be 3.7 V.

Technical characteristics and test program

Below are two tables with the characteristics of the tested models. The first shows the parameters of conventional “power banks” (with a capacity of 5,000 – 6,600 mAh), and the second – with increased capacity (from 10,000 mAh).

Small "power banks"

Model

Capacity, mAh

Output current, A; number of outputs

Dimensions, mm / mass, g

Price, rub.

Let's start our review of power banks with a popular company Xiaomi, which is a leading manufacturer in the Chinese smartphone market and also produces add-ons for its mobile phones, such as external batteries. The renowned quality of all of this company's products has been compared to premium electronics giants like Apple. Xiaomi smartphones are often called the Chinese equivalent of the iPhone for their reliability and good equipment. Model Xiaomi Mi Power Bank not only has excellent design, quality and capacity 10,400 mAh, but also at a low price - $15 .

As for the rest of the characteristics, the case has one USB connector and one microSD connector. The power button will allow you to activate the device to start charging, and the LED indicator lights will show its level. The dimensions of the pocket battery are 77 x 90 x 21 mm and the weight is 250 grams. It will take about 5 hours to fully charge the device.

The popularity of power banks is growing every day, because the need for this device is also increasing. There are quite a few models of mobile batteries for any mobile devices on the market today. A special category includes models such as SCOSCHE goBAT, which have a protective design and can be used in extreme conditions. The gadget's capacity is 12,000 mAh, which is quite a spacious volume that will allow you to charge one device several times. Two USB connectors on the case will allow you to power two mobile phones at once, for example, a smartphone and a tablet.

The protective design of the device has been certified IP68, which indicates that the external battery is resistant to water, dirt, and active shocks and falls. Resistance to temperature changes is also a big plus, since almost all such devices without protective functions can quickly fail in the cold or heat. The body is made of polycarbonate and is very durable. The connectors for connecting mobile phones are hermetically sealed. To purchase a gadget you need to pay a fairly impressive amount $99 , but it is justified by the high reliability of the battery.

Model Poweradd Pilot X7 deserves attention with a very capacious battery 20,000 mAh at a very attractive price $18 . This price is valid upon presentation of a promotional code on the Amazon portal. For active Internet users, it will not be difficult to find it on the global network. Without a promotional code, the cost will almost double to $35. Of all the puer banks, this model will interest the user with its compact size and such capacity.

There are two USB connectors on the body of the gadget so that you can charge any two mobile devices at once. At the same time, there is also a battery level indicator, which consists of four LED lights. The user can easily put the device in his clothing pocket and carry it with him, and, if necessary, quickly use it. The battery will last for more than 500 cycles, which is quite good considering the affordability in terms of price.

Another interesting power bank from a famous Chinese company Lenovo, having compact dimensions - 140 x 63 x 21 mm and weighing 240 grams. This gadget is even smaller than the previous one and will fit even in the smallest pocket. Battery capacity Lenovo PowerBank amounts to 10,400 mAh. The well-known build quality and reliability of this manufacturer's products should tip the scale of choice in favor of choosing this model. It will take about 5 hours to charge the external battery itself.

The device has a plastic body, which is quite durable and will not crack if accidentally dropped. There are two USB connectors and one microUSB connector on the case to charge several mobile phones at the same time. A very useful feature if you actively use a smartphone and a tablet, and often need to charge both mobile phones at once. An LED indicator will indicate how much charge is left in the battery. Those who want to buy this particular power bank will need a small amount of $20 .

The next power bank called ROMOSS Sense 4 Heart has excellent build quality from the manufacturer ROMOSS, which is not as well known as Lenovo but has a good reputation among its users. The volume of this battery is also 10,400 mAh, which is quite enough to charge an average smartphone 3-4 times. Weighing 290 grams, the gadget has quite compact dimensions of 130 x 60 x 20 mm. You can easily put the device in the back pocket of your jeans.

Two USB connectors on the side of the case will allow you to connect two smartphones or two other mobile devices. The microUSB port is designed for charging an external mobile battery. You can also note the presence of a charge level indicator, consisting of four LED lights. Overall, the device deserves to be in your pocket, not only for its good build quality, but also for its attractive price. $15 .

Although the power bank VINSIC Alien cannot be called compact - this is one of the ultra-thin external batteries for mobile devices. Capacity is 20000 mAh, which is very impressive and will charge even a powerful smartphone more than five times. In comparison, an iPhone can be charged ten times. The device will definitely attract attention with its additional advantages - first of all, it has a metal body, which creates high durability. The gadget is not afraid of shocks and active use.

This power bank is equipped with two USB connectors for simultaneous charging of even the most powerful mobile devices. For example, some Chinese smartphones boast a battery life of 10,000 mAh, which is not an issue for this device. Another big plus is the presence of a digital charge level indicator, which shows the percentage. In general, the device is interesting for its reliability. The price is not the lowest - $45 , but despite its good qualities, the device is worth the money.

Many users know the company TP-Link mainly on network products, including Wi-Fi routers, routers, network cards and many other similar things. But the range also includes an external battery TP-Link Power Bank with a pretty decent capacity 10,400 mAh. The user will definitely be interested in the dimensions and design of the power bank, which has very compact dimensions of 88 × 44 × 44 mm. Since mobility is paramount for external batteries, the model is sure to attract attention.

There are two USB connectors on the body of the gadget so that you can connect and charge your tablet and smartphone at the same time. The gadget weighs quite decently despite its small size - 240 grams. The charge indicator, which traditionally consists of four LED lights, will notify the owner that it is time to fill the power bank with energy. A very decent gadget from a reputable manufacturer, and also not expensive - $25 .

The next power bank model is Karbonn Polymer 10 PowerBank has quite acceptable capacity in 10,400 mAh, that it’s enough to charge more than one mobile device. When considering the appearance, a digital indicator in the form of an LED screen immediately catches your eye, which shows the percentage of the charge level. This is very convenient and will allow you to accurately control the battery filling. This rather thin and compact gadget boasts dimensions of 127 x 65 x 10 mm and a weight of 215 grams, which is also relatively small.

The cost of the gadget is very affordable, taking into account the presence of a digital charge indicator and is only $20 . In this case, the user will receive a high-quality external battery for charging various mobile devices. This could be a smartphone or tablet, as well as an MP3 player or other similar device. The quality from the manufacturer Karbonn will also greatly please the owner of this additional battery.

The main problem of modern electronic gadgets is autonomy. Their power is so high (or the battery capacity is insufficient) that in most cases the performance without an outlet is not enough even for a day. Naturally, no one wants to be left with a dead device at the right time, and that’s why power banks were invented. These are special devices capable of storing energy and sharing it with peripheral devices. Roughly speaking, portable rechargeable batteries. These are exactly what we will talk about in this material - we will consider and analyze which power bank is better in 2017.

Powerbank IconBIT FTB Travel 4.0

This device is no longer just an external battery. It is designed for lovers of outdoor recreation, long trips or even hiking. What's unusual? Let's look at the details point by point:

1. Design unusual. The rectangular shape is framed by thick rubber side panels that extend from the surfaces. This provides additional protection against bumps and falls. The case is made of impact-resistant plastic and has dimensions of 142x75x14 mm. The top edge is rounded and equipped with a special eyelet for hanging, for example, on a backpack. On the front panel there is an indicator of operation and the level of filling of the internal storage. In addition, on the same side there is a solar battery that charges the power bank from the heavenly body. At the ends there is one USB port for connecting peripheral devices, and at the bottom there is a microUSB for charging the battery itself.
2. Specifications quite good - the battery capacity of the power bank is 5000 mAh, and the current strength at the output ports is 1A. This is enough for 2-3 charges of a smartphone with a medium-capacity battery. The power bank replenishes its own charge from a computer, household outlet or sunlight. Moreover, in the latter option it will take about 6–7 hours to fill the battery 100%, and with classical charging - 2–2.5 hours. Supports simultaneous energy transfer to 2 external devices.
3. Additionally It is necessary to mention two features of the power bank: a flashlight and protection from external influences. The first one is clear, just a high power LED capable of illuminating the environment. But the second nuance is more interesting. In addition to durability, the case has an IP65 sealing level. This means almost 100% protection from moisture, dust and dirt.

This is the ideal device for charging on long trips. Large battery, compact size, solar powered - an ideal combination for those who spend a long time away from outlets.

The price of IconBIT FTBTravel 4.0 in Russia is 1400 rubles. And this is the cheapest power bank for a smartphone in our TOP 8 best power banks of 2017.

Powerbank Rombica NEO PRO 180

This model is designed for charging any peripheral equipment, from a player to a laptop. For this purpose, the universal power bank is equipped with appropriate connectors and has a sufficiently large battery capacity. And together with its beautiful appearance, it is a real work of art:

1. Design, without exaggeration, is unique. The rectangular case is made of aluminum and has a special “smoky” texture, which not only looks incredibly beautiful, but also effectively hides scratches. True, such a case and the volume of the battery affected the size. The device is quite large (192x85x21 mm) and heavy (570 g). On the front side there are internal charge indicators and an activation button framed by an LED ring that shimmers in different colors. At the top end there are output ports for charging: 2 USB outputs and 2 universal round ports. With their help, smartphones, tablets, laptops and even Apple equipment are charged. The power bank looks stylish and has the most universal functionality.
2. Specifications They don’t cause any complaints at all, or even a hint of them. The battery of the power bank has a capacity of 18,000 mAh and is capable of transferring charge to all known types of mobile gadgets. USB provides a current of 1A for one port and 2.1A for the other port. Universal outputs are designed to charge the laptop directly, as well as the external battery itself from a power outlet or computer. Although no one forbids charging external devices from both. So, one shows a current of 3.2A at the output, and the second is a converter and has the ability to switch modes - 12V, 16V and 19V. Simultaneous charging of 3 devices is supported.
3. Additionally I need to say something about the delivery package. Such concern for consumers is rare - in the box with the device itself, the user will find a network adapter for charging the power bank, a cable with USB and microUSB connectors, 10 adapters for the charging ports of laptops of various models and brands. And for dessert, there are also 2 wires for the MacBook: MagSafe connection cords of the 1st and 2nd generation.

This is truly a universal and extremely voluminous power bank, suitable for all users.

The price of Rombica NEO PRO 180 in Russia is 7,300 rubles. Check out the video review below:

Power bank TP-LINK TL-PB10400

But there is nothing extraordinary in this model, except for its appearance. An ordinary external energy storage device with a good capacity. This cannot be considered a minus, because low cost goes hand in hand with average characteristics. However, why this device is presented in our TOP 8 best power banks of 2017, let’s take a closer look:

1. Design is the main feature of this drive from TP-LINK. While most people settle on the classic rectangular flat shape, the engineers of this company decided to pay primary attention to appearance. The power bank looks like a volumetric prism with a square cross-section and rounded corners. If you choose the closest comparison, it would be a wooden block. Of course, there is a huge difference between wood and the TL-PB10400, and the design of the drive can easily be called stylish and strict. On one of the side faces there is a USB port for charging the power bank itself. And all the active elements are located at the end. The body itself is made of white plastic, and the ends are covered with the same material, but in a light blue hue. Dimensions are 88x44x44 mm with a weight of 240 g.
2. Specifications could be called standard, but some features prevent this from being done. Firstly, there is an LED flashlight. Secondly, there is only one control button - it serves both to activate the flashlight and to check the current charge in the battery. There are also 2 USB ports: one for smartphones with a current of 1A, and the second is designed for charging tablets at 2A. The total capacity of this mobile battery is 10400 mAh. Simultaneous charging of 2 devices is supported.
3. Additionally I need to say something about working with the device. Unlike analogues that require activation, here charging of the connected gadget begins automatically after 30 seconds. This is another feature of the power bank.

This device combines simplicity and convenience. No additional steps are required for use, and the appearance is extremely pleasant.

The price of TP-LINK TL-PB10400 in Russia is 1600 rubles. Video review is presented below:

Power bank Sony CP-V10

Unfortunately, the only advantage for this device was the Sony inscription on the case. Let's look at what mistakes the manufacturer made in this review:

1. Design There are no complaints, which is quite expected, given the company that released this power bank. The body is made of plastic with a dotted texture and looks very beautiful. It practically does not collect scratches and abrasions, and there are no fingerprints left. Dimensions are 127x72x17 mm with a weight of 245 g. In fact, the battery is large enough for its capabilities, but this does not cause any particular inconvenience. The standard shape is a rectangle. Black color.
2. Specifications pleasing only at first glance. The total capacity is 10,000 mAh, while charging the device itself takes about 5 hours, which is too long. At the end there is only one USB port with an output current of 1.5A - still not enough for tablets, but smartphones charge perfectly. The internal charge indicator is also available and shows every 25%.
3. Additionally it must be said that the declared capacity is such only under certain conditions. So, 10,000 mAh is achieved only at 3.7V, but if you use gadgets with an operating voltage of 5V, then the capacity is reduced by almost 2 times, and is 6300 mAh. This, of course, is written in the specifications for the power bank in very small print, which does not improve the situation at all.

Overall, this is an average quality device for charging phones. With such indicators, the cost is clearly too high, and, most likely, it is better to choose a cheaper and more functional analogue.

The price of Sony CP-V10 in Russia is 2300 rubles. More about the model in the following video review:

Power bank HIPER MP15000

A device about the functionality of which one would like to say “even too much.” Some options are not clear why they are needed, although, in general, the battery performs well when used for its intended purpose.

1. Design as simple as possible. Before us is a rectangle made of white aluminum alloy with a glossy surface. Strength is not a concern, and the battery survives any drops normally. But the coating itself is not pleasing - it quickly becomes covered with scratches and collects all the fingerprints it can. At the end there are USB and micro-USB ports for charging the power bank itself. Also available is a flashlight and an SD card reader. The dimensions are impressive 134x70x20 mm, the weight is also not small - 365 g.
2. Specifications pleasantly surprised. The total battery capacity is 15,000 mAh. There are 2 USB outputs with a current of 1A and 2.1A for smartphones and tablets, respectively. Supports simultaneous charging of 2 devices. The internal reserve indicator has a 25% step and an LED structure.
3. Additionally There are a couple of things that need to be said. Firstly, the card reader. It is this module that is frankly superfluous, because using a power bank, even of such an impressive size, as a physical medium is extremely inconvenient. It is unlikely that this function will ever be useful. Secondly, let's look at the delivery package that will please any user. In the box, along with the battery itself, 5 additional adapters are supplied: 1 each for microUSB and miniUSB, 1 for portable devices from Nokia and 2 for devices from Apple - 30 pin and 8 pin (Lightning). The set, frankly speaking, is rich.

Despite the presence of a useless card reader, the power bank has quite decent characteristics and a beautiful appearance. It charges quite quickly and works great.

The price of HIPER MP15000 in Russia is 1900 rubles. More details about the device in the video below:

Power bank ASUS ZenPower (10050 mAh) ABTU0054.5

If you are interested in which power banks are best to choose for traveling, then this is undoubtedly the model from Asus. This is an external energy storage device, most likely for tablets, although it will also charge smartphones without any problems. Its main feature was the body - you can safely take it on trips of any nature.

1. Design classic - a flat rectangle without decorative elements or decorations. Actually, the device itself is one continuous decoration. The body is made of aluminum with a glossy finish and is available in 6 colors: blue, yellow, pink, silver, dark blue and black. This set is extremely unusual for portable batteries, although it allows you to better express the individuality of the user. Any shade looks beautiful, stylish and bright. At the end there is a connector for connecting chargeable peripherals. The dimensions are small - 90x59x22 mm. Weighing 215g, this product from ASUS is one of the smallest and lightest power banks in the world.
2. Specifications not amazing, but quite acceptable for a device of this class. Battery capacity 10050 mAh. There is only 1 USB output with a constant current of 2.4A. In fact, the port is universal and suitable for smartphones, tablets, players and Apple equipment. The only negative is that you won’t be able to charge the laptop - there won’t be enough current. There are also intelligent overload and short circuit protection systems. On the case, next to the charging port, there is a battery full indicator.
3. Additionally You need to pay attention to the operating conditions. This is one of the few technical devices that can withstand cold weather well. The manufacturer guarantees performance within the temperature range from -40 to 70 degrees Celsius.

This device survives travel well. Africa? Antarctica? No problem - ZenPower will easily replace the outlet.

The price of ASUS ZenPower (10050 mAh) ABTU0054.5 in Russia is 1,700 rubles. More about the device in the following video:

Power bank Meizu M10

Smartphones and tablets have already proven their worth, but what about power banks? Let's find out how good and versatile the external battery from Meizu is in this review:

1. Design not quite common. The rectangular shape is common, but the combination of colors is rare. The main shade is white, and the end with the ports is dark gray. The case is plastic, with a glossy shine. Thanks to the work of the designers, the impression of an extremely expensive gadget is created. Next to the connectors there is also a charge indicator for the battery itself. It is not entirely clear why the dimensions turned out to be so large - 143x75x18 mm. And this while weighing only 235 g.
2. Specifications do not differ from analogues. Power bank capacity 10000 mAh. There is only one USB output for connecting a device that requires charging with a current of 2A. There is also microUSB for a charging power bank. In addition to the popular short circuit and network overload protection systems, there is a built-in safety system that prevents and alerts about overheating.
3. Additionally It should be noted that the charging output only supports a voltage of 9V, although the device can be charged from both 5V and 12V. This selectivity somewhat narrows the list of smartphones and tablets that can be connected to the battery.

It is difficult to call this model universal, however, it fully copes with its tasks and does not cause any complaints.

The price of Meizu M10 in Russia is 2700 rubles. And here is a video review of the device:

Xiaomi Mi Power Bank Pro

Xiaomi, as usual, is on top. The created device looks stylish and has a modern “filling”.

1. Design can easily be considered a classic thanks to its rectangular shape and rounded corners. The case is metal with a wide variety of colors: black, grey, blue, yellow, orange, silver and grey. Dimensions are 128x75x12 mm, and weight is 223 g. The coating is smooth and matte, and this is rare. At one end there are USB ports, a charge level indicator and a button to activate the energy transfer process.
2. Specifications keep up with the times. The capacity is not maximum, but quite sufficient for household needs - 10,000 mAh. But the situation with outputs is more interesting: regular USB and more modern USB Type-C are available. Thanks to the latter, Qualcomm Quick Charge 2.0 fast charging technology is supported. Both ports support an output current of 2.1A. There is also an automatic system against overheating, short circuit and network overload.
3. Additionally I'm glad that the kit includes adapters for microUSB and USB Type-C.

An excellent device for charging smartphones and tablets. Simple, concise and most effective.

The price of Xiaomi Mi Power Bank Pro in Russia is 2000 rubles. More about the device in the following video review:

As can be seen from the variety of the TOP 8 best power banks of 2017, choosing a suitable model will not be difficult. This year will definitely be a happy one for owners of smartphones and tablets - now there is no need to rush to the outlet, because an inexpensive, effective, good power bank is always at hand.