Which is the best to buy a portable battery for your phone. What is an external battery for a phone and which one is better to choose? To do this, follow the tips below.

Nowadays electronic gadgets are used everywhere. They are needed for work, communication and entertainment. With active work, modern mobile phones and tablets are quickly discharged. Even if you always carry a charger with you, it is not always possible to plug it in. A portable charger for your phone called Power Bank will help you not to be left without connection at the right moment.

The device is called differently - external battery, portable or mobile charger, portable charger. In this case, we are talking about the same thing - charging for a phone without an outlet.

The advantage of Power Bank is that it can be used to charge electronic gadgets when other methods are not available. This can happen not only in situations where there are no outlets nearby or they are all busy, but also during long trips, travels, and even hiking trips. For those who like to often get out into nature, there are special external batteries equipped with solar battery.

Power Bank is a battery that must be pre-charged and then used to power other devices.

The portable charger is small and lightweight, making it easy to carry around in your bag. Gadgets are connected to the Power Bank via a cable connected to the USB connector, which makes the external battery a universal device. It can be used not only to charge the phone battery, but also for tablets, cameras, laptops, players.

Some models of the portable device have more than one USB connector, which allows you to charge several gadgets at the same time.

More about capacity

Capacity is a characteristic that indicates how long a portable battery can be used to power other gadgets without recharging. Most portable devices have an indicator that blinks when low. To use PowerBank again, you need to charge it in one of the ways - from the network, laptop or computer. Charging takes place through a special micro-USB connector on the case.

Most of the demanded batteries have a capacity of 1500-20000 mAh. How much capacity is needed depends on the devices that PowerBank will be used to power. If you need a battery to charge your phone, a device with a lower capacity is suitable than for recharging a laptop or photography equipment.

The weight of the portable battery directly depends on the capacity. You should know this in order to avoid buying a fake. On the Internet, you can find offers in which the low weight and low price of the battery do not correspond to its capacity. The 5000mAh increase in capacity makes the model weigh about 100g more.

Calculate the number of charging cycles

PowerBank can be used to recharge electronic devices as many times as its capacity exceeds the battery capacity of the charging devices. When choosing a portable battery, it is advised to focus on several charging cycles. To do this, you need to multiply the battery capacity of the gadget that you plan to connect to the portable charger by 2-2.5.

For example, if you are looking for a portable charger for mobile phones with a 2600 mAh battery, you should not buy an external battery with less than 5200 mAh.

Please note that PowerBank will not charge gadgets with more battery capacity than the external battery.

It should be understood that the portable battery will not be able to fully charge the device if the capacity of their batteries is the same, since the PowerBank battery is consumed to ensure its operation.

Charge currents

The current strength affects the charging speed of devices. In external batteries, USB ports for 1 A or 2 A are common. A 1 A plug is needed to charge phones, smartphones, players, e-books. The 2A USB port is suitable for large equipment - tablets, cameras, laptops.

There are PowerBank models with multiple connectors. Most of these chargers have ports with different amperage.

Mobile batteries are equipped with controllers that limit the supply of voltage to devices with a weak battery, so the player or phone will not be damaged if it is connected to a 2 A connector. Otherwise, when large equipment is connected to a connector with a weak current, the charging process will be slow.

Battery type

There are 2 types of batteries: lithium-ion and lithium-polymer.

Li-ion devices

Lithium-ion chargers are more common on the market. This type of battery matches most batteries found in modern mobile phones.

Li-ion PowerBank is inexpensive and can charge most tablets and smartphones.

The disadvantages of this type of battery include the risk of damage from overcharging or overheating. There are PowerBank models that provide automatic shutdown in situations like this.

Li-polymer devices

Lithium polymer chargers have an internal structure that allows you to get more battery capacity with less weight compared to Li-ion devices.

Li-polymer chargers have a higher price. This is due to the need to install a special board to ensure the operation of the device, which has a complex internal circuit. The batteries are also equipped with an overheating design.

Cheap lithium-polymer chargers can neglect the installation of additional cells, which can quickly deteriorate batteries.

How to choose the right one?

To choose a good external battery, you need to build on the needs of the buyer. It should be understood which gadgets are planned to be charged, in what quantity and how often.

There is no point in overpaying for PowerBank with a large capacity if you choose an external battery for your phone that can be charged at fairly minimal rates. To charge a laptop, you will need a device of at least 20,000 mAh, less capacious ones simply will not work. It should be borne in mind that the larger the capacity, the more weight, and some models may not be comfortable to carry with you every day.

When using tablets and photographic equipment, it is better to opt for models with a higher amperage, which will provide fast charging.

If you need to charge the battery of your phone or other gadgets that do not have a USB port, choose a model that includes adapters for connecting old-style devices.

Portable chargers can be made of plastic or metal. In the second case, the phone charger will be stronger and less prone to scratches, but its price and weight will be higher.

You can find PowerBank with an unusual design. They can be made in the form of various toys, animals, or any other shape. It should be borne in mind that such decorative devices due to the original appearance have a higher cost, although they may not have high performance.

If you need to use the device while traveling, you should pay attention to devices with a built-in solar battery. They will make it possible to recharge the phone for several hours even in extreme conditions where there is no electricity.

Sometimes it may be necessary to use the device while being powered by PowerBank while standing or on the move. In this case, it is better to choose a small battery, which will allow you to stay connected to the case - it is not difficult to hold such a device in your hands.

Some models are equipped with additional elements that can make your work more comfortable - lED indicators, screen, flashlight.

Top portable chargers

The popular model is Xiaomi Power Bank 2 20000 mAh. This device offers the best value for money. Has a plastic case. A 20,000 mAh battery and 2.4 A connectors allow it to be used not only as a phone battery charger, but also for tablets and other more capacious equipment. 2 USB ports make it possible to simultaneously power multiple devices.

ASUS ZenPower 10050 mAh ABTU005 is a portable phone charger made of metal and equipped with an LED that will notify you when the device is running low. Features allow you to charge smartphones, including newer iPhone models, which have higher capacity.

TP-LINK TL-PB10400 is a compact model, the size of which allows you to use PowerBank on the go, while on the road a built-in flashlight can help out. Has 2 ports for connecting devices for 1 and 2 A.

One of the best options for portable phone battery charging is SONY CP-V10. Its advantages are compact. The 10,000mAh battery and 1.5mA output keep the price affordable. A light indicator adds to the comfort of use.

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

Power Bank - what is it?

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

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

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

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

  • what are you going to charge with the battery? How many devices?
  • how many times a day will you need a portable power supply?
  • what size and function should your battery be?

External charger capacity

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

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

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

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

Some unscrupulous manufacturers, taking advantage of this moment, indicate the amount of energy received, not given away. Experiments have shown that the average transmission loss is 20-30%. This means that a charger designed for 1000 mAh is capable of charging a smartphone with 700-800 mAh. When buying, it is almost impossible to check this, which means that you need to choose products from well-known brands.

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

If the phone has a battery with a capacity of 2800 mAh, a charger with an indicator of 5600 mAh or more is suitable for it. In the event that you charge two devices, then you need to add their capacity and multiply by 2. And when buying, be guided by this figure.
The average option can be considered a Power Bank with an indicator of 6000 mAh, with which you can charge a smartphone for 2-3 days. A universal version with 12000 mAh is suitable for phone and tablet

Outgoing current to the connector

The output current is the second parameter that must be taken into account when choosing. The fact is that the current strength partially affects the rate at which the device recharges.

Attention! For Apple tablet owners, a 2A charger is suitable. This indicator is usually indicated on all portable batteries next to the connector.

Standard USB port with amperage 1A for phones and 1.5-2A for tablets. When buying a battery, you need to make sure that the charging current is consistent with the device you are going to charge. Or choose universal battery.

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

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

Input amperage refers to how quickly the battery itself charges. The same principle applies here. The current strength must be equal to and exceed the capacity of the battery, then it will be powered at high speed.

Features of the portable charger case

On the one hand, I want to use a light, compact battery that will fit in my pocket and will not drag it out. On the other hand, a large capacity is required for full, comfortable charging. How can you find the optimal ratio here?

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

The way out of the situation is simple, you need to choose a Power Bank based on your individual needs. Count how many times a day you need to charge one or two devices. In accordance with this indicator, and purchase a battery. Power users it is advised to add a small margin to the figure obtained. In case you decide to go on vacation with your friends and share your exercise with them.

Additional functions of the portable charger

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

  1. Charger with flashlight. A battery like this can come in handy if it's so compact that it fits in your pocket or in the nearest compartment of your bag. As a flashlight, manufacturers usually use an LED that works at a minimum of energy and is not able to drain the battery.
  2. Battery with built-in solar battery. On the one hand, this solution is very environmentally friendly, because the Power Bank can be charged not only using a computer or an outlet, but also using sunlight. The downside is that such charging lasts at least 3-4 days, subject to good weather.
  3. External charger plus Wi-Fi router. Such batteries combine two functions: they charge and work like a router, that is, they distribute the Internet.
  4. The user may benefit from the auto power off function.
  5. Any batteries have a built-in charging indicator in the form of "sticks", which over time may give incorrect information. A digital indicator with a display is much more accurate and reliable, but adds about 20% to the cost of the battery.

In terms of design and color, portable chargers can be bright and interesting or austere, business-like. For example, the Gmini company produces batteries that look like stones.

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

Experts believe that the average cost of a quality Power Bank is from $ 40. Purchase external device on the Internet it can be an order of magnitude more profitable, but it is still better to purchase it in a store, where they provide all the documents and a guarantee.

How to choose an external battery for your phone - video

Universal external batteries, or power banks, are not such a complicated technique to get confused in them. We will tell you how to choose an external battery for your phone - which one is best able to provide power to your devices even on a long hike.

How to choose an external battery for your smartphone? Main characteristics

Capacity

The main parameter for choosing an external battery is, of course, its volume. It determines how long it can power your devices. Modern power banks have a capacity of 2,000 to 50,000 mAh. But the principle "a lot is good" does not work here: as the capacity increases, the size and weight of the battery increases.

The most comfortable for daily wearing will be a battery with a capacity of 5000 - 10,000 mAh - if you want to charge only one device and do not go far from home. If you need a source autonomous power supply for several devices, or you plan to be away from the outlet for a long time, it is better to pay attention to external batteries with a capacity of 20,000 - 30,000 mAh.

Charging current

The second important characteristic is how much current the device is capable of giving at the output. The higher the amperage, the faster the battery will charge. But charging batteries too quickly is not entirely correct: they can overheat and fail faster. For an average smartphone, a device with a charge current of 1-2 A is enough, for tablets and laptops 2-3 A.

The optimal charging current can be "spied" on the charger that comes with the gadget. As a rule, the electronics of the gadget limits the maximum current for safety reasons, so that weak devices are unlikely to burn out from powerful charging.

The most successful option is a power bank with two ports, giving different output currents. For example, one port can provide 1 A, the other 2 A - we will tell you a couple of external batteries for a smartphone with this capability at the end of the article.

But most often the manufacturer indicates the total current that the device can give out - that is, when two smartphones are connected, each is given 1 A, total 2 A. Keep this in mind!

Ports and cables

Devices connect to the powerbank via uSB ports with the help of complete cables and adapters. Take another look at your devices and answer yourself two questions:

  • First of all, how many devices do you want to charge at the same time? Ideally, the same number of ports should be on an external battery.
  • Secondly, what devices do you have? If you have an iPhone, the powerbank should have a Lightning connector, if you have an old iPhone, you will need an Apple 30-pin to USB adapter. To connect other devices to an external battery, you may need USB to microUSB, USB Type-C or DC-DC cable (for laptop).

The cables can be supplied with the powerbank, but if necessary, they can of course be purchased separately. In addition, there are external batteries with the supplied adapter kits, including those for original connectors like the same Apple 30-pin.

Charging type

Important question - how do you intend to charge the powerbank itself... A good external battery has a microUSB connector for its own charging. Accordingly, you can even charge it with a smartphone charger (keep in mind that with a low charging current, this will take a lot of time). Any other connector can be used, such as a computer port, USB socket, or car cigarette lighter.

But there are also alternative options - for example,. Then you can replenish energy reserves by simply leaving it in the sun for a few hours - and then recharging your gadgets from it. For long hikes in nature, such a device will be very useful, and it will come in handy in the country. Plus, it's minus one gadget that will pull energy from your outlet.

Special requests

The above four characteristics are common when choosing any power bank. However, in addition to this, there are many interesting additional options that an external battery for a smartphone can have - how to choose the right ones is up to you:

  • Charging laptops... Such a power bank can supply enough voltage to recharge your laptop's battery. External batteries with this function are often equipped with DC inputs, as well as voltage switches that allow you to increase and decrease it: after all, a laptop requires a voltage of about 20 V to charge, and a smartphone "eats" only 5 V - the comparison here is clearly not in favor of the "laptop" ... Of course, such devices are large enough.
  • Fast charging... Powerbank can support fast charging functions: Qualcomm 2.0, 3.0 or 4.0, as well as proprietary technologies - Samsung FastCharging, Meizu mCharge, Asus BoostMaster. Moreover, both for devices and for yourself - in order to replenish your reserves as quickly as possible.
  • Wireless charger... Powerbanks with this feature have a transmitter that is supported by newer smartphones. In order for the phone to start charging, it will be enough to put it on top of such a powerbank - no cables are needed.
  • Dust and moisture protection... Some powerbanks have been designed and rated up to and including IP68. Inquire about this spec if you want a truly rugged external battery (perhaps for your super rugged smartphone).
  • Information display... On it you can see the remaining charge in the power bank, current voltage, current and other important information.

In addition, the powerbank can have a nice design and unusual shape, be supplied with accessories - complete cables, adapters, a case or storage case, and some models can even be used as a flashlight.

Remax Floppy Disk 5000 Powerbank

External battery for phone: rating of the best 2018-2019

Xiaomi Mi Power Bank 2 10000

Xiaomi's aluminum lithium polymer power bank is designed to charge one device at a maximum current of 2.4A, while supporting the Qualcomm Quick Charge 2.0 function. Two USB ports allow you to charge the device and the powerbank itself, which will take only 4 hours to replenish the stock. The device weighs only 228 grams and fits easily in your pocket.

Xiaomi Mi Power Bank Pro 10000

Another model from Xiaomi, very similar to the first, but with a USB Type-C connector and a USB-C adapter included. In addition, more a new version Quick Charge 3.0, thanks to which the powerbank is fully charged in 3 hours. The maximum output current of the device is 2A.

ASUS ZenPower 10050 mAh ABTU005

The multi-colored rubberized powerbank from Asus has a capacity of 10,050 mAh and is equipped with standard USB and microUSB connectors for charging one gadget and the powerbank itself. By the way, it takes about 8 hours to fully charge, as Quick Charge functions are not supported. But the device is very light (215 g) and shock-resistant.

Canyon CNE-CPB156


Briefly about the main

It is not necessary to purchase an external battery from a well-known brand, since it does not differ in any way from the models of lesser-known manufacturers in terms of reliability and performance. That is why we chose the most affordable devices that will never let the user down.

Best External Battery

The best external battery today is the model. It - optimal choice in terms of price / quality / performance ratio.

Best Power Bank with Flashlight

If it is important for you to purchase a model with a flashlight, but so that it also has high technical performance, then you can give preference. Although its battery capacity is slightly less than that of the Xiaomi model.

Modern people prefer to use smartphones instead of tablets and laptops, because they are just as powerful and at the same time more compact. But due to their small dimensions, their time decreases. autonomous work: It is impossible to install a large battery in a small case.

To solve the problems that arise because of this, you can purchase an external battery for your phone. How to choose which characteristics to pay attention to and which models are the most popular today, you will learn in the article.

Top external batteries

NameCapacity# Of USB portsAmperage of USB portsBattery level indicatorLanternPrice
16000 mAh2 1000/
2 100 mA
there isno Check price
10400 mAh2 1000/
2000 mA
there isthere is Check price
15600 mAh2 1000/
2000 mA
there isthere is Check price
10000 mAh2 1000/
2 100 mA
there isno Check price
12500 mAh2 1000/
2000 mA
there isno Check price

Why is it needed?

An external battery (also known as Power Bank) is designed to charge a smartphone or other mobile device if there is no access to power supply networks. To do this, the device is connected to a mobile gadget using a special adapter cable.

It is not always convenient to use a second battery to replace the main one. In addition, many modern flagship smartphones have a molded case, in which the battery is non-removable. In this case, using Power Bank is the best option.

Principle of operation

An external battery is a set of batteries, combined with each other and enclosed in a case, which has a universal output (usually a USB port) for connecting an adapter. For the manufacture of the case, plastic (cheap models) or aluminum is used.

After connecting to the Power Bank of the smartphone, the standard charging process will begin. These steps can be repeated until the external battery is completely discharged. Due to the fact that it has a large capacity, you can simultaneously or in turn charge two or more gadgets, or one mobile device several times in a row.

Characteristics

When choosing an external battery for a smartphone, pay attention to the main characteristics that will help you choose a high-quality and durable device.

Capacity

This is the main characteristic that determines the performance of an external battery. It shows how long the device will provide the mobile gadget with energy.

This parameter is measured in ampere hours (Ah) or milliampere hours (mAh). In order for the Power Bank to work effectively and not to have any problems with it, its volume must be at least 2 times the capacity of the battery of the device it charges. But the larger this parameter, the better.

The larger the capacity of the external battery, the longer the period of its operation. But at the same time, the time for recharging increases.

In addition, it should be borne in mind that the larger the capacity of the selected device, the more expensive it will cost. The golden mean is 6000 mAh models. A Power Bank with a capacity of 15,000 mAh and more is suitable for charging a smartphone or even a tablet.

Current strength

The outgoing current affects the charging time of the device. The higher it is, the faster the smartphone will charge. For mobile phone the standard indicator is 800-1200 mA, for tablets 1500-2000 mA.

Good to know! It is desirable that this parameter coincides with the recommendations of the manufacturer of the smartphone or tablet.

Dimensions

Please note that the larger the capacity of the external battery, the larger it is, because more batteries are placed inside. But in this case, everyone chooses a model for themselves, depending on the requirements that he makes to it.

For fans of hiking, a Power Bank of large capacity and dimensions is suitable. And for users who recharge their smartphone in order to "sit" in social networks a compact and less capacious option is suitable.

Don't buy models that offer high capacity in a compact package. These are the gimmicks used to increase sales.

Features:

Different Power Bank models may have their own characteristics.

  1. Number of nests... Some models have multiple jacks for connecting two or more gadgets at the same time. In most cases, they have different outgoing currents: 1000 and 2000 mA for charging smartphones and tablets, respectively.
  2. Cable with a set of adapters... Such devices are suitable for new, as well as for old smartphones that do not use Micro-USB or USB Type-C connectors, but other connectors.
  3. External battery charging method... When buying an external battery, choose a model that charges via a Micro-USB socket. This will allow you to use a regular smartphone charger to charge it.
    There are Power Bank models with solar panels installed on the case. Basically, they compensate for the effect of self-charging of batteries, but they will not be suitable for full charging of the external battery itself.
  4. Battery level indication... The indicator will tell you how much energy is left in the external battery and when it needs to be connected to the mains for charging. This is a convenient option, but it affects the cost of the model.

The best choice

Xiaomi Mi Power Bank 16000

The best choice!

The main advantage of the model is excellent quality, high reliability and affordable cost. Thanks to the metal body and large battery capacity, you can easily charge the same gadget several times in a row (5 times or more).

The presence of two USB ports allows you to charge multiple devices at the same time, but their close location will not allow you to connect two massive plugs at the same time. In general, this is where the cons of the model end, so it is the best choice to buy.

Benefits

  • body;
  • battery;
  • battery level indicator;
  • 2 USB ports;
  • price;
  • output current 2000 mA.

disadvantages

  • location of USB ports.

TP-LINK TL-PB10400

Unfortunately, due to the large volume of the batteries, the battery case had to be made square, which is not always convenient in operation. In addition, it is made of plastic, albeit reliable. This reduced both the weight and the reliability of the Power Bank.

The current at the two outputs is different: 2000 and 1000 mA, so you can choose which device and where to connect.

The presence of two USB ports, a flashlight and a battery charging indicator allows you to operate the device comfortably and easily. Although the flashlight is of average quality.

Benefits

  • battery;
  • charge level indicator;
  • 2 USB ports;
  • lantern;

disadvantages

  • body;
  • lantern.

Yoobao YB665

Price: 3,000 rubles.

Glossy plastic made the device stylish, but easily soiled, so it will need to be constantly wiped clean. Although the cost of Yoobao YB665 is quite high, the set of functions and reliability will allow it to be operated for a long time. In addition, the Power Bank comes with a charger and adapters for the iPhone.

Everyone calls this item differently, but they miss it equally when the battery is at zero and the outlet is not nearby. The arsenal of gadgets is now not limited to a smartphone, it often comes with wireless headphones, "Smart" watches, fitness bracelets, Bluetooth speakers ... Their owners have a particularly acute question of how to feed this whole menagerie. We will tell you how external batteries differ from each other, how to choose the right one for you and how to use them correctly.

How much do your devices consume?

You need to start by answering exactly this question: after all, an amateur climber to shoot with a GoPro camera and edit video on a tablet in mountain hikes needs more energy than an office manager swimming with a player in a pool. For clarity, we present the average values \u200b\u200bof the battery capacity for some types of devices:

action camera: 900 mAh;

wireless headphones: 150 mAh;

music player: 1800 mAh;

wireless speaker: 3000 mAh;

smartphone: 3000 mAh.

Taking these numbers as a basis, it is enough to remember which devices you use most often and plan to charge; get something like that: 1800 + 150 + 3000 \u003d 4050mAh.

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

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

In general, portable chargers are divided into five conventional categories.

Pocket Assistants

How to calculate: capacity up to 3000 mAh

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

Signature Redline R-2600 at 2600mAh with 1A current

Power bank can be safely charged for future use so that it lies just in case. The self-discharge of such devices is very slow; your portable battery will drain only 10-15 percent in a year.

Workers for every day

How to calculate: capacity about 5000mAh

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

Huawei CP07 Signature 6700mAh 2.4A

Catering for a large company

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

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

Ttec Powerslim 10,000 mAh with 2.1 A

The accelerated charging technology significantly reduces the time to the cherished 100 percent on the smartphone battery. An hour, maximum one and a half - and the phone is completely ready for work. However, pay attention to what kind of accelerated charging technology your gadget supports. QuickCharge, SuperCharge, Adaptive Fast Charging are all different types that do not fit together. Thus, the smartphone can be quickly charged using SuperCharge (if it is Huawei P10), and Power Bank can support QuickCharge. In this case, it will be possible to power the gadget, but the charging time will be normal.

Pocket Power Station

How to calculate: for a capacity of 15,000-20,000 mAh

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

InterStep PB16DQ 16,000 mAh @ 2.1 A

Wireless portable chargers

Attach your smartphone and see

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

Ferrari 10,000 mAh with wireless charging Qi

Instead of output

Dealing with the variety of portable chargers is not difficult if you compare the model you like in terms of parameters and know what kind of capacity is required. Taking charge with a margin is impractical, because this will affect the convenience of carrying with you, not bringing much benefit. Having decided on the appearance and capacity, make sure that you have the necessary bonuses - wireless or fast charging, after which you can safely buy a convenient, practical and suitable device for you.

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