Which portable battery to buy for your phone. Comparison and selection of an external battery: selection criteria, recommendations, tips
| Briefly about the main thing It is not necessary to purchase an external battery from a well-known brand, since it is no different in reliability and performance from models from lesser-known manufacturers. That is why we chose the most affordable devices that will never let the user down. |
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| Best external battery The best external battery today is the model. It is the 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 smaller than that of the Xiaomi model. |
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Modern people prefer to use smartphones instead of tablets and laptops because they are just as productive and at the same time more compact. But due to their small dimensions, their time is reduced. battery life: It is impossible to install a high-capacity battery in a small case.
To solve the problems that arise due to this, you can purchase an external battery for your phone. You will learn in the article how to choose, what characteristics to pay attention to and which models are the most popular today.
Top external batteries
| Name | Capacity | Number of USB ports | USB port current | Battery level indicator | Flashlight | Price |
|---|---|---|---|---|---|---|
| 16000 mAh | 2 | 1000/ 2 100 mA | There is | No | Check price |
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| 10400 mAh | 2 | 1000/ 2000 mA | There is | There is | Check price |
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| 15600 mAh | 2 | 1000/ 2000 mA | There is | There is | Check price | |
| 10000 mAh | 2 | 1000/ 2 100 mA | There is | No | Check price |
|
| 12500 mAh | 2 | 1000/ 2000 mA | There is | No | Check price |
Why is it needed?
An external battery (another name for 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.
Using a second battery to replace the main one is not always convenient. In addition, many modern flagship smartphones have a molded case in which the battery is non-removable. In this case, using a Power Bank is the best option.
Principle of operation
An external battery is a set of batteries interconnected and enclosed in a case that has a universal output (usually a USB port) for connecting an adapter. The case is made from plastic (cheap models) or aluminum.
After connecting the smartphone to the Power Bank, 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 your 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 milliamp hours (mAh). For a Power Bank to work effectively and not cause any problems, its volume must be at least 2 times the battery capacity of the device it charges. But the larger this parameter, the better.
The larger the capacity of the external battery, the longer its operating period. But this increases the recharging time.
In addition, it is worth considering that the larger the capacity of the selected device, the more expensive it will be. The golden mean is 6000 mAh models. A Power Bank with a capacity of 15,000 mAh or more is suitable for charging a smartphone or even a tablet.
Current strength
The strength of the outgoing current affects the charging time of the device. The higher it is, the faster the smartphone will charge. For a mobile phone, the standard indicator is 800-1200 mA, for tablets 1500-2000 mA.
Good to know! It is advisable that this parameter coincide with the recommendations of the smartphone or tablet manufacturer.
Dimensions
Please note that the greater the capacity of the external battery, the larger it is, because it contains large quantity batteries. But in this case, everyone chooses a model for themselves depending on the requirements that they place on it.
For fans of hiking, a Power Bank with large capacity and dimensions is suitable. And for users who recharge their smartphone in order to “sit” in in social networks A compact and less capacious option is suitable.
Don't buy models that offer large capacity in compact body. These are tricks that are used to increase sales.
Peculiarities
Different Power Bank models may have their own characteristics.
- Number of slots. Some models have several sockets for simultaneously connecting two or more gadgets. In most cases, they have different output current strengths: 1000 and 2000 mA for charging smartphones and tablets, respectively.
- Cable with adapter set. Such devices are suitable for new as well as old smartphones that do not use Micro-USB or USB Type-C, and other connectors.
- 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 body. Basically, they compensate for the effect of self-charging of batteries, but they are not suitable for fully charging the external battery itself. - 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 network 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 case 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 simultaneously charge several devices, but their close location will not allow you to connect two massive plugs at the same time. In general, this is where the disadvantages of the model end, so it is the best choice for purchase.
Advantages
- frame;
- battery;
- battery level indicator;
- 2 USB ports;
- price;
- output current 2000 mA.
Flaws
- location of USB ports.
TP-LINK TL-PB10400
Unfortunately, due to the large volume of batteries, the battery case had to be made square, which is not always convenient to use. In addition, it is made of plastic, although reliable. This made it possible to reduce both the weight and reliability of the Power Bank.
The current strength at the two outputs differs: 2000 and 1000 mA, so you can choose which device to connect where.
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.
Advantages
- battery;
- charge level indicator;
- 2 USB ports;
- flashlight;
Flaws
- frame;
- flashlight.
Yoobao YB665
Price: 3,000 rub.
Glossy plastic made the device stylish, but easily soiled, so it will need to be wiped constantly. Although the cost of Yoobao YB665 is quite high, its range of functions and reliability will allow it to be used for a long time. In addition, the Power Bank comes with a charger and adapters for iPhone.
Modern smartphones and tablets are equipped with increasingly capacious batteries. But power consumption is also growing, because devices are hidden under the body powerful processor, a lot of all kinds of sensors and modules, and the picture is displayed on a huge display. That's why you can easily buy an external battery for your smartphone in consumer electronics stores. This accessory will allow you to extend the battery life several times. But only if you make the right choice.
The best power banks with a capacity of no more than 10,000 mAh
Xiaomi Mi Power Bank 5000
- Capacity: 5,000 mAh
- Price: from 699 RUR
The Chinese company Xiaomi produces very good accessories for smartphones. Portable batteries are also very popular. Mi Power Bank 5000 does not have the largest capacity, but even 5000 mAh is enough to fully charge any smartphone. And the process will not take much time - the USB connector available here is supplied with a current of 2.1 A. The battery itself is recharged in 3.5 hours, and its minimal size and weight (156 g) allow you to throw the accessory into your trouser pocket.
Main features:
- High current.
- Metal body.
- Protection from all kinds of troubles.
- Minimum dimensions and weight.
Xiaomi Mi Power Bank 2 10000
- Capacity: 10,000 mAh
- Price: from 990 RUR
This is the powerbank that is most often ordered from Chinese online stores. Its capacity has been increased, and therefore the input current has also been increased - so you don’t need to assume that the battery will take a very long time to charge. The Chinese introduced a lot of protective equipment here, but left the body metal. The weight of the accessory is 228 g - this is slightly more than the mass of many modern smartphones.
Main features:
HIPER SP7500
- Capacity: 7,500 mAh
- Price: from 790 RUR
HIPER SP7500 has two USB connectors, which allows you to simultaneously charge a couple of devices at once. But these should not be tablets, since the capacity of this battery cannot be called huge. A maximum current of 2.1 A can be supplied to the second connector, while the first is limited to the standard value. This external battery has a plastic case and its weight does not exceed 168 g.
Main features:
- Two connectors for charging the device.
- One of the connectors produces increased current.
HIPER XPX6500
- Capacity: 6,500 mAh
- Price: from 750 rub
Typically, manufacturers of portable batteries skimp on the charge indicator. But not in the case of HIPER XPX6500. This model uses a full display as an indicator, which allows you to see accurate readings and is equipped with a flashlight. To charge devices, a USB connector is used, delivering a current of up to 2.4 A.
Main features:
- Relatively small in size.
- Excellent charge indicator.
- Very high output current.
Cactus CS-PBMS028-5000
- Capacity: 5,000 mAh
- Price: from RUB 1,190
An excellent choice for owners of only one smartphone that runs on a modest battery. This model It immediately attracts attention due to its metal body and unique design. The remaining characteristics of the accessory are quite standard - they include two color options and one USB connector with a current of 1 A.
Main features:
- Nice design.
- Modest sizes.
- Metal body.
- A curiously implemented charge indicator.
The best power banks with a capacity of up to 15,000 mAh
Huawei AP007
- Capacity: 13,000 mAh
- Price: from 1,850 rub.
The capacity of the battery installed here is enough for two or three full recharges of the smartphone. First of all, the accessory is designed for phones and tablets from Huawei. But it also does a great job of charging other devices. In extreme cases, protection will work here - it reacts to overheating, short circuit and overload. The only drawback of the portable battery is its heavy weight, reaching 325 g.
Main features:
- Two USB connectors for charging gadgets.
- Numerous protective technologies.
- Metal body.
- There is a charge indicator.
- Capacity: 13,000 mAh
- Price: from 1,160 rub.
The battery capacity is enough for two or three full recharges of the smartphone. First of all, the accessory is designed for phones and tablets, but it also charges other gadgets without any problems. There are several LEDs on the case to conveniently display the amount of charge. The downside of the portable battery is its heavy weight (380 g).
Main features:
- Nice price tag.
- There is a charge indicator.
- Capacity: 12,000 mAh
- Price: from RUB 1,790
This model easily copes with charging smartphones, tablets and other gadgets. And to make this process faster, there is technology here fast charging. Qualcomm Quick Charge 2.0. At the end there are several LEDs for convenient display of the amount of charge, in addition, this model weighs only 250 grams, which is not much for such a battery volume.
Main features:
- There are two USB connectors for charging gadgets.
- Compact size.
- Light weight.
- There is a charge indicator.
The best power banks with a capacity of 15,500 mAh and above
HIPER XP17000
- Capacity: 17,000 mAh
- Price: from RUB 2,590
Despite its impressive capacity, the accessory turned out to be very thin, and it cannot be called large. It has a pair of USB ports, which output a current of 1.3 and 2.3 A. And the battery itself can be charged at a current of 3 A, which makes this process unusually fast. You can also find various indicators on the accessory - they are located at the bottom of the front panel.
Main features:
- Relatively light weight for such a container.
- Elegant appearance.
- There are various indicators.
- High output current.
- The battery itself charges in a short time.
Xiaomi Mi Power Bank 2 20000
- Capacity: 20,000 mAh
- Price: from RUB 1,390
The product of the Chinese company Xiaomi features support for Qualcomm Quick Charge 3.0 fast charging technology. This allows you to charge devices that also have this technology in the shortest possible time. And the external battery itself charges very quickly, which is what allowed it to get into our top. As befits such an advanced accessory, Xiaomi Mi Power Bank 2 has received many protective technologies that turn off the process in case of overload, overheating or short circuit.
Main features:
- Built-in support for Qualcomm Quick Charge 3.0.
- There are two USB connectors.
- Lots of protective technologies.
- There is a charge indicator.
- Very high capacity.
Pineng PN-999
- Capacity: 20,000 mAh
- Price: from RUB 1,790
An excellent external battery designed for both phones and tablets. The charge level, as well as some other parameters, is displayed here on a digital display, complemented by a blue backlight. To recharge gadgets, two USB connectors with different current strengths are used. The battery itself can be recharged using network adapter, delivering a current of 2 A. Another advantage is the presence of a flashlight - it can come in handy at any time.
Main features:
- Short circuit and overheat protection.
- Detailed charge indicator.
- There are two USB connectors at the end.
- One of the connectors has a high current strength.
- There is a flashlight.
The best power bank for charging a laptop
Rombica NEO PRO280
- Capacity: 28,000 mAh
- Price: from 7,990 RUR
One of the most advanced external chargers. The built-in battery, made using lithium-polymer technology, has an unusually high capacity. This would be enough even for several recharges of the tablet! But first of all, this external battery is intended for connecting a laptop. This is evidenced at least by the package, which includes as many as 10 different adapters for laptops. It also contains two cables for charging the MacBook (the first and the second MagSafe). The kit also includes a charger for the battery itself, which produces a very high current and is connected using a round connector. Of course, you can also charge smartphones and tablets using the Rombica NEO PRO280 - there are two USB ports with different current strengths for this purpose.
Main features:
- There are two USB ports and a universal connector.
- You can even charge a laptop - the current is enough.
- The accessory itself charges quite quickly.
- Huge supply of energy.
- Very rich equipment.
The best secure power bank
- Capacity: 10,000 mAh
- Price: from 1,170 rub.
The protected portable battery Ritmix RM-3499DC received a compact protective case in camouflage color, a charging cable and a complete car charger. The manufacturer promises that this gadget can withstand 500 charging cycles.
Main features:
- Two USB ports.
- Protective housing.
- There is a complete car charger.
Conclusion
For some time now, external batteries have begun to be produced in huge quantities. Therefore, do not think that our list is complete - you can easily find other good accessories in stores that can show themselves quite worthy. We examined only the most popular options, which collect a lot of positive feedback. Buy yourself one of these accessories - we guarantee that you will definitely not be disappointed with your purchase!
Removed from selection
Rombica NEO AX120L
- Capacity: 12,000 mAh
- Price: from RUB 2,290
This portable battery for smartphones and tablets is reasonably priced and very thin. At its end there are two USB connectors at once, which allows you to connect a couple of gadgets. At the same time, both of these ports produce a maximum current of up to 2.4 A. The strength of the incoming current can also be high, thanks to which the battery itself is charged in a very reasonable time. The accessory comes with a case that makes transportation a little easier.
Main features:
- Metal body;
- Extremely thin thickness;
- Two connectors for charging gadgets;
- Both connectors carry high current.
HIPER SPS10500
- Capacity: 10,500 mAh
- Price: from 2,790 rub.
Almost every external phone battery suffers from one problem. You may forget to take a cable for it, which is used to charge gadgets. And only HIPER SPS10500 is designed in such a way that it is free from this drawback. The cable here pulls out from a special compartment - that is, it is always with you. At its end there is a special plug that combines micro-USB and Ligtning connectors. This allows you to use the accessory, including for charging your iPhone. The maximum current output is 2.1 A - this should help charge even a tablet in a short time.
Main features:
- There is a charge indicator;
- It is impossible to lose the cable;
- One cable allows you to charge two devices simultaneously.
Gmini GM-PB156L
- Capacity: 15,600 mAh
- Price: from 1,950 rub.
A relatively small external battery, included in our rating thanks to many positive reviews. Its end is home to two USB connectors and a bright LED that acts as a flashlight. The USB ports are supplied with currents of varying strengths - 1 A and 2.1 A. Unfortunately, the accessory itself charges slowly, since it does not support high input current.
Main features:
- There is a flashlight;
- You can charge a couple of devices at the same time;
- High current on one of the connectors;
- There is a charge indicator.
DEXP SLIM XXL
- Capacity: 20,000 mAh
- Price: from 1,899 rub.
Inexpensive product, manufactured to order from the Russian trading network DNS. It has quite tolerable dimensions, and the weight with a high capacity was even reduced - to 385 g. The digital display shows the current charge level. The number of USB ports has been increased to four - this is the number of devices that can be charged simultaneously. The current output to these connectors is 1.0 A and 2.1 A. The accessory comes with a cable, at the end of which there are two connectors - micro-USB and Lightning.
Main features:
- Very high capacity;
- Small size and weight for such a container;
- As many as four USB connectors;
- Clear charge indicator.
S-Freedom SF-10000w
- Capacity: 10,000 mAh
- Price: from 2,990 rub.
This battery is packaged in a kind of case containing rubber pads. All connectors are closed with plugs, and the main part of the structure can be pulled out of the case only after unscrewing the screws. All this should protect the protected external battery from problems that may arise in field conditions. With such protection, you can even say that this power bank is waterproof. It weighs 263 grams. To recharge gadgets, it uses two USB connectors with different current strengths. The device also boasts a built-in flashlight.
Main features:
- Two USB ports;
- One of the connectors produces high current;
- A waterproof and shockproof case is used;
- There is protection against overheating and other troubles;
- Built-in flashlight.
According to the unwritten law of meanness mobile phone always discharges at the most inopportune moment. As a rule, a smartphone loses all its charge when you urgently need to find something on the Internet, call someone, or receive an important message. It’s good if you have a power outlet or laptop at hand, from which you can recharge at least a little. But what if such a nuisance occurs far from stationary energy sources? Fortunately, developers of portable electronics have found a way out of the situation by releasing external batteries (also called Power Banks) onto the market. There are several types of such batteries, each of which is designed to recharge a specific device: smartphone, tablet, e-book. However, in this review we will talk about how to choose an external battery specifically for a smartphone, because it is these gadgets that most often “betray” their owner at inopportune moments.
What is an external battery and what types are there?
In my own way Power device Bank is a portable lithium-ion or lithium-polymer battery with a certain capacity. Such batteries transfer charge to the batteries mobile devices(in our case, smartphones). Their main feature is that they are able to store a charge over a long period of time. Another unifying factor is the compactness of such devices. You can easily carry them with you to work, take them on long trips and hikes. The modern market has the most different models external batteries, which may differ from each other:
- capacity;
- forms;
- interface;
- dimensions;
- color;
- material;
- the presence of additional design elements.
- Individual boxes- the most common design option. Such devices always have a nice design and compact dimensions. The main advantage of boxes of any shape is that they can have a solid capacity, which is enough to completely replenish the charge of several phones at once (their exact number depends on the battery capacity of the smartphones themselves).
- Wrist bracelets- a modern and truly unique design option. Such devices are easier to carry (no need to allocate a separate place for them in your bag or pocket). Moreover, such technical innovations look quite stylish. However, they have one significant flaw: low battery capacity. Thus, such models are designed to partially replenish energy reserves so that the user can perform several important operations on the phone. Such products will not be able to completely “feed” the battery of modern mobile devices (unless you are charging a rather old smartphone model).
- From a power outlet or laptop. Models charging using this method are the most common. The operating principle is as simple as possible. The user connects the Power Bank to the network or laptop computer via USB cable. Over a certain period of time, the battery draws energy from the connected source. When the energy reserve is completely restored, a special light comes on (although there may be other types of signal).
- From a built-in dynamo. Without exaggeration, this is a rather unusual way of charging. With this device, the user rotates a special handle, which produces electricity. The main disadvantage of such devices is noise: during rotation there will be a strong buzzing noise, distracting others. Among the advantages are a decent battery capacity, long charge retention and, of course, a positive effect on the small muscles of the arms (a Power Bank of this kind will replace a wrist expander).
- From the sun. This is probably the most modern option for replenishing energy reserves. Such batteries play the role of a miniature solar station equipped with special lenses. These lenses capture the rays and convert them into electricity. Such models are very popular in hot countries where the scorching sun is commonplace. Almost any Power Bank of this kind has a solid capacity that allows you to charge both smartphones and tablets from it. Moreover, the presence of such an external battery significantly saves household electricity. The only negative is that the catching lenses require close care, otherwise the device will stop working.
What to look for when buying a Power Bank?
There are many factors to consider when purchasing external battery for smartphone. We will look at 5 fundamental aspects that will help you make the right choice.
- Battery capacity- this is, without exaggeration, the most important indicator of the quality of such products, affecting their practicality and, accordingly, price. To measure capacity, a special unit is used - milliamp hours. The modern market is filled with batteries of various capacities: from several hundred to several tens of thousands of milliamp hours. Choice specific model directly depends on the battery of your mobile device. According to experts, a Power Bank is considered suitable if its energy reserve exceeds the phone's reserve by at least 20%. If you want to use a battery that is enough for several charges, then you should give preference to analogues whose capacity exceeds the volume of a telephone battery by at least 3 times.
- Current strength- a moment that directly affects the charging speed. To measure current, a unit such as ampere is used. In order for a smartphone to charge relatively quickly, the Power Bank must have a power equal to at least 1 ampere. If you do not meet this criterion, you risk getting a battery that will replenish its energy supply longer than a stationary power supply.
- Compliance of the declared capacity with the actual one. Unfortunately, not all market players are honest. In order to attract buyers, they use all sorts of tricks. One of the most common techniques is to artificially increase the performance characteristics of a product. For example, the packaging may state 10,000 mAh, but in practice it turns out that the battery has only a 7,000 charge. An additional concern is the fact that among all external batteries, more than 70% have incorrect characteristics. Of course, reduced capacity is not always the result of tricks. The battery may lose some of its capabilities if the rules of transportation and storage are violated. For this reason, it is recommended to always check whether the declared capacity corresponds to the actual capacity. For this you need to use special devices. It is clear that such a check can only be carried out in a regular store, where the product is in front of your eyes. If a purchase is made via the Internet, you need to consider whether a particular online store provides a service for returning and exchanging goods. This is the only way to save yourself from wasting money.
- External battery self-discharge rate. This is another extremely important point. As you know, any technical product wears out over time and its performance capabilities decrease. In this regard, Power Bank is no exception. With prolonged use, the battery capacity begins to decrease, as a result of which the number of charges that can be carried out suffers. Information regarding the self-discharge coefficient should always be clarified with consultants before purchasing. But there is one pitfall - not a single consultant will tell the whole truth on this issue. Here it is better to be guided by a simple pattern: over the course of a year, the volume of high-quality batteries drops by 10–15%; As for cheaper analogues, in 12 months they lose from 30 to 40% of their capabilities. In addition, it is worth remembering that in the absence of practical use, the accumulated charge is also consumed. Expensive batteries lose up to 10% of their energy reserves in 14 days. Cheap models can lose up to 30% of energy over a similar period of time.
- Number of ports for connection. If you live alone and want to use the “energy bank” personally, one USB port will be enough for you (even if you have two smartphones). If you have a family where everyone needs a working phone, it is better to buy models equipped with multiple sockets for connection. Also, 2 or more ports may be needed if you decide to go camping with a group of friends. Naturally, the volume of such portable chargers must be appropriate.
The most popular models of external batteries
Knowing the above information will come in very handy when purchasing a portable battery for your smartphone, but knowing the most best models similar devices will make your choice even easier. Let's consider best brands external batteries separately:
- iPower 6- This is enough compact device, which you can carry in your pocket. It has a cylindrical shape. The declared capacity of this device is 2600 mAh. It has 6 sockets of different standards, so iPower 6 is suitable for many types of portable gadgets.
- SC-A120- one of the most compact models available on the market. The charge capacity is quite small - only 1900 mAh, so this device is suitable for replenishing a small amount of energy (for example, to make a couple of important calls). The battery is equipped with several types of sockets so that you can connect different mobile devices. Its highlight is the presence of two conducting paths to replenish energy reserves. The first way uses solar energy, the second - electricity from an outlet.
- iPower13- an improved version of the first device. This model has a larger capacity - 8400 mAh. In addition, the case has rubberized inserts, which makes it shock-resistant.
- Gigabyte Power Bank OTG G66B1- a practical option for an external battery with a capacity of 6600 mAh. Mobile devices are connected via a standard USB input, as well as via a micro-USB socket.
- Metrans Power Bank- Very good model, the energy volume of which is 10400 mAh. The body of the device is made of aluminum, making the entire structure more durable. This Power Bank supports simultaneous charging of two smartphones at once. As for personal energy restoration, it takes about 6 hours.
- Xiaomi PowerBank is a battery that is rapidly gaining popularity. Several versions of this model have already been released, with a minimum battery capacity of 5400 mAh. This is an ideal option for smartphones of the same brand.
- Xiaomi PowerBank 16000- the best external battery of 2017 (at least for now). As the name suggests, this product has a 16,000 mAh charge. This volume is enough for both a phone and a tablet.
Actual number of external battery charges
Many inexperienced users incorrectly calculate the number of possible charges. In particular, they believe that if they have a 9000 mAh external battery and a 3000 mAh smartphone, they will be able to use the “energy bank” three times and raise the charge of their device from 0 to 100%. Actually this is not true. Let's find out what such people forget to take into account.
- Battery self-discharge- the point mentioned above. Even when the Power Bank is not in use, its energy is consumed. Of course, in high-quality models this happens slowly, but still, after disconnecting the external battery from the power source, it begins to lose its energy reserve.
- The difference between the output voltage of the smartphone and the battery during charging. As a rule, this indicator for phones exceeds the same value for “energy banks”. To replenish energy reserves quickly, each Power Bank is equipped with a special circuit that artificially increases its output voltage. The result of this increase is that part of the available energy is spent on maintaining the charging process, rather than on the charging itself. This means that the phone is missing about 30% of its potential charge.
Price of external batteries for smartphones
The price of external batteries for a smartphone in Russia starts from 600–700 rubles. These are the least spacious models. Batteries with a significant capacity cost 1500–1600 rubles.
So we have looked at the main aspects that will help you choose the right Power Bank. As you can see, there is nothing particularly complicated in this process. However, it is always worth checking the product characteristics and giving preference only to products from reliable manufacturers. This will save you from purchasing a low-quality technical product. The following video review is also devoted to the method of correctly purchasing “energy banks”:
By what criteria choose a portable “battery”, what to look for when ordering and purchasing? Short and succinct instructions for yourself, a friend, a friend, a grandfather and a neighbor. If they gave you a link here, it means they really want to help you;)
Why do you need an external battery?
How often have each of us encountered the battery on our favorite smartphone running out at the most crucial moment? With the development of technology, this question has become rhetorical. Just ten years ago, few people could be surprised weekly battery life of the device. You won't see this now.
As a rescue in a situation "Battery low" and the guests of my story today were invented - external batteries. What are these things and what do they eat them with?
*they are not eaten
How does an external battery work?
External battery- How is that internal battery, only external (your Captain Obvious). Several batteries are soldered to a small controller board, to which, in turn, connectors are attached for charging our gadgets and the battery itself. The reliability of the entire structure depends mainly on the use of high-quality components and compliance technological process in production.
From this follows the main rule - do not buy extremely cheap portable batteries. In the vast majority of cases, they will be assembled as crookedly as possible, from the lowest quality components. I’ll tell you a little later about the minimum price a high-quality external battery can have.
Main characteristics of a portable battery
Their three, these are the ones you should pay attention to when choosing (and only then look at the design).
1. Capacity
The most important characteristic, which determines how long the battery can supply energy to a particular device. To put it simply, this is the operating time of the battery without additional recharging. It is measured in ampere hours, in our case – in milliampere hours (mAh, mAh).
Basic rule: for comfortable use, the capacity of the external battery must be at least 2 times more than the battery capacity of the device being recharged.
For example, the iPhone 6 has a battery capacity of 1 810 mAh. In order not to be afraid of being left without communication for a day when constantly using a smartphone, you should choose a battery for it 3 500-4 000 mAh. This is guaranteed to be enough for one full battery charge.
Golden mean batteries with a capacity of about 6,000 mAh can be considered for comfortable use of a smartphone for several days. A capacity of more than 12,000 mAh is extremely versatile and is suitable for users of smartphones and tablets, including at the same time.
2. Current strength when discharging
The standard is a connector with a current of 1 A for charging smartphones and 1.5 - 2 A for charging tablets. If we talk in simple words, the current strength in the battery indirectly affects the charging speed of the connected device.
In this case advice already two. First, keep an eye on matching battery current and your smartphone manufacturer's specifications. The best indicator for this will be the included charger. For example, with Apple iPhones puts a charger with a current of 1A. With iPad – already 2A.
Accordingly, it is advisable to charge the iPhone from the 1A port in your battery, and the tablet from 2A.
The second tip concerns primarily tablet owners Apple: You need a 2A portable battery. Don't even look at 1A, it's simply not strong enough to power the huge battery in your iPad. To find out the amperage before purchasing a battery, simply look at the markings next to it. USB port. In 99% of cases everything is clearly written there.
3. Size and weight
Golden Rule: the higher the capacity and the more ports, the larger there will be a battery.
There are again two pieces of advice. First - choose a battery to suit your regime using a smartphone or tablet. It’s one thing to be a fragile girl who just wants to sit on social networks and chat with a guy for one or two hours. And it’s completely different when a stern bearded man – a lover of hiking and bard songs – wants to listen to these songs in the forest, also with clips on YouTube, for two or three days. A small and portable battery is enough for a girl, but a bearded man should immediately buy a “tank” with 15 thousand mAh, no less.
Second tip - don't be fooled by the huge capacity battery in a small or amazingly cheap device. This does not happen and will never happen. Stay realistic.
All the other “goodies”, such as the presence of a flashlight, solar battery, shock-resistant case, etc. – are not necessary for daily use (although sometimes useful), and only add an extra penny to the price of the product. The only really necessary option is a battery charge indicator, but almost all models have it, so we won’t focus on it.
So, which external battery would be ideal for a modern gadget? To play games, watch a movie, and not be left without communication for several days...
- Capacity: 6,000 mAh for a smartphone and from 12,000 mAh for a tablet;
- Current strength: one connector for 1A, or two connectors for 1A and 2A;
- Weight no more than 250 grams (but if you are a stern bearded man, then this is not so important);
- Necessary options: charge indicator and power button recessed into the body.
Everything else is up to you, there are a lot of different design solutions and interesting options.
Minimum price for a quality battery
Let's look at a high-quality battery from one well-known manufacturer. Capacity – 10 400 mAh. Many people consider this battery a reference, and it’s hard to argue with them. Its approximate price consists of:
- 4 Samsung ICR18650-26F batteries – $20.
- Electronics, assembly and packaging – $5-10.
- Logistics and seller’s interest – $5-10.
Total – $30-40 or about 1200-2000 rubles(at the current exchange rate). This figure may fluctuate, but the point is different...
A 10,000 mAh battery from eBay for 600 rubles is too much good to be true. Not to mention 20 thousand mAh for the same money - and other nonsense that Russian buyers willingly believe in, flaunting “savings” left and right. Don’t be fooled by cheap prices, trust products from well-known brands, read reviews and, above all, think. It's the most important.
An external battery is a portable charger that can be used to charge a smartphone, tablet or any other gadget. It doesn’t matter where you are or whether there is access to a power supply nearby - an external battery will allow you to always stay connected. Our article will help you choose a suitable model and understand the intricacies of this choice.
Types of external batteries
To recharge mobile devices that do not require a powerful power source, compact portable batteries are used, allowing you to recharge the gadget in a bag or pocket. Such devices are small in size and weight. Laptops consume more energy, so a different type of battery is used to recharge them - with increased capacity and special connectors.
Capacity
The most important characteristic of all external batteries is capacity. For mobile devices (smartphones, tablets, players) batteries with a capacity of 3000 – 16,000 mAh are suitable. To charge laptops, a capacity of 18,000 mAh or higher is required. IN general case It is recommended to select a battery with a capacity at least twice as large as the battery capacity of the mobile device. In order to estimate the approximate number of additional charges that an external battery can provide, you need to divide its capacity by the battery capacity of the device being charged.
