What amperage is needed to charge the phone. Chargers or devices for charging car batteries

Charger(CH) - transfers energy to gadget batteries from external sources and thereby ensures long-term and uninterrupted operation of phones, tablets, laptops, e-readers, mp3 players and other equipment.

All gadgets are usually equipped with “native” memory. However, during operation the need for additional memory arises. Another factor in favor of such devices is the fact that most modern devices do not require replacing one battery with another (with the exception of cameras).

Purpose

Devices for charging exclusively a phone or tablet have one USB output for connecting the corresponding equipment. The main difference between these chargers is the output current, which is measured in amperes (A).

For phone chargers, this parameter does not exceed 1 A, which is enough to recharge most small gadgets. A charger for tablets has an output current of 2.1 A. A more expensive universal charger usually has two USB outputs for different devices.

Important: The maximum current of 2.1 A is released only when one device is connected. If two devices are charging at the same time, the charger will “give” a current of 1 A. If you charge equipment rated for 2.1 A using a 1 A charger, it will take longer to charge.

By type, chargers are divided into stationary, universal, wireless, automotive, Power Bank (battery), Power Bank (solar battery), manual and battery (regular battery).

Stationary (network; SZU)

The SZU charges the gadget from the mains (220 V). It may be “native” for certain models or simply an adapter for connecting a USB connector to the mains. The SPS is relatively inexpensive and has no restrictions on energy resources, but depends on the availability of the network.

Automotive (ASU)

The ASU charges the gadget from the car's on-board network and connects to the cigarette lighter. It is made in the form of a cable or adapter, often cylindrical in shape with USB connectors for devices. This charger can only be used in a car. The ASU is perfect for people who constantly drive.

Universal

This charger is a USB cable, which at one end is connected (via a USB port) to a computer, laptop, car charger, and the other (via connectors) is connected to a tablet/phone. Such a device is inexpensive, but its functionality is limited by the presence or absence of these devices at hand.

When using a universal charger, it is necessary to take into account the input current parameter - the current in the devices from which the device is charged. This setting affects how quickly the connected device's battery charges. But not all power sources provide high current. For example, a PC USB port has an input current of 500 mA.

Wireless

This charger operates on the principle of magnetic induction and transfers energy directly to the phone/tablet without connecting a cable. It is made in the form of a platform on which the gadget is placed. The wireless charging pad itself is connected using a cable to the network or to another device (computer, laptop) via a USB port.

Wireless charger is easy to use, safe (no contact with electricity) and can be used in difficult conditions. However, long-term charging, during which the phone/tablet cannot be fully used, and a very high price call these advantages into question. In addition, such devices are not suitable for every phone.

Most wireless chargers are universal, that is, they fit models of different brands. There are also wireless car chargers.

Power Bank (battery)

This type of memory is most common. The battery does not depend on external conditions and has a higher capacity than a conventional battery, which means it ensures longer operation of the electronic device. The price of this charger is more than the battery charger. Like batteries, such devices contain electrolyte that is hazardous to human health.

There are two most common types of batteries:

• lithium-ion (Li-Ion) - the most common batteries that have an affordable price and acceptable quality;
• lithium polymer (Li-Pol) - heat up and self-discharge much less, have less weight and are more durable. Instead of electrolyte, these batteries use polymer metal. However, Li-Pol tolerates sub-zero temperatures less well (capacity is reduced), and their price is higher.

Power banks come with both built-in and replaceable batteries.

Capacity

This parameter indicates the amount of energy that the Power Bank supplies to the connected device before it is completely discharged.

The capacity of the external battery is measured in milliamp-hours (mAh) and ranges from 2000-50000 mAh. The capacity of a lithium-ion battery depends on the number of batteries it consists of: 1 cell - 1200-2400 mAh, 2 cells - 2500-4400 mAh, 3 cells - 3750-6600 mAh, 8 cells - 10400-14400 mAh.

To correctly select the battery capacity of the charger, you need to know the battery capacity of the device being charged. In this case, the storage capacity should be higher by 20-30% , since for a number of reasons not a single battery provides full energy output, and over time its capacity decreases by 15-20%.

For example, if your phone has a 2000 mAh battery, then a suitable charger must have a capacity of at least 2500 mAh. If there are several such devices, then the correct indicator will be the sum of their capacities plus the same 20-30% reserve.

Important: some manufacturers even indicate two parameters: declared and actual capacity, helping to navigate the choice of the right capacity.

The circumstances of using the memory must also be taken into account. For long-term stays without access to the power grid, you should purchase a charger with the highest possible capacity, despite its high price and weight (size).

If the task of the charger is to keep the phone/tablet battery charged until you get home, then in this case the optimal solution will be less capacious, but more affordable and compact devices. Interesting options - a charger in the form of a keychain or a phone case.

One of the types of rechargeable Power Banks is Power P e n, made in the shape of a handle. This is a compact charger with a capacity of 700 mAh. Such a device will come in handy in emergency situations. The Power Pen also doubles as a stylus.

Important: the price of a Power Bank directly depends on the capacity of its battery: the greater the capacity, the higher the cost of the device. Therefore, a cheap and at the same time quite capacious charger is unlikely to be of high quality and will most likely not last long. Battery chargers can store energy for 6-12 months.

Other Power Bank Parameters

Output current- this is the current directed from the charger to the connected device. Measured in amperes (A). This parameter affects the battery charging speed: the higher this parameter, the faster the charger will charge the battery of the device connected to it. It is worth remembering that too high a setting can lead to overheating of the phone and its breakdown.

output power Battery chargers are measured in watts (W). This indicator must be equal to or exceed the power of the gadget’s battery being charged, otherwise the charger will discharge it.

Important: To determine the charging time of the battery of the device being charged, it is necessary to divide the output power of the charger by the capacity of this battery.

Output voltage battery charger is measured in volts (V). This indicator must match the input voltage of the gadget being charged. For phones and tablets, this value is most often 5 V, for video cameras - 9 V, for laptops - 16/19 V. If the output voltage of the charger is higher than the input voltage of the receiver, this will lead to damage to the battery of the device being charged and even to its explosion.

• for phones, smartphones, PDAs, GPS navigators, you should choose a charger with a capacity of 2000-5000 mAh, a power of 0.5 W;
• for cameras, video cameras and tablets you need a charger with a capacity of 4000 mAh or more, with a power of 0.8 W;
• for laptops, netbooks and other powerful devices, it is better to purchase a charger with a capacity of 10,000 mAh or more, with a power of 1.5 W or more.

On hiking trips, it is better to take a charger with a capacity of 8000-20000 mAh or higher.

Power Bank (solar battery)

This Power Bank resembles the previous device, but is “powered” not from the network, but from the sun. The charger converts the received energy into electricity. The solar power bank is environmentally friendly, has a long service life, and is reliable.

The solar battery can be recharged both from the sun and from the network or laptop. The charger is sensitive to weather conditions: in cloudy weather it charges the equipment and charges itself much more slowly. The price of such a memory is the highest among portable devices.

Solar-powered devices are the best choice for long hikes, since the traveler will almost always be able to recharge his charger. In field conditions, a dynamo is also useful, but its efficiency is much lower.

There are two types of solar chargers.

• With battery(capacity ranging from 4000-25000 mAh) - consists of a solar panel, battery, converter and charge/charge controller. The body of the device is made of rubber or metal. This charger is charged from the mains, and then during operation it is recharged from the sun.
• Without battery(power is 3-300 W) - consists of the same elements, with the exception of the battery. The shell of the device is made of waterproof fabric. Such a charger, like a network charger, directly transfers energy from the power source (the sun) to the connected gadget. Chargers without a battery are cheaper.

Budget models have a 0.2-0.4 W battery and charge within 10-15 hours. More expensive chargers are equipped with a 1-3.5 W battery, due to which charging occurs faster - 4-5 hours. Solar chargers with panels up to 3 W are good for recharging a gadget’s battery; devices with a power of over 3 W can effectively charge directly from the sun.

Solar panels can be made from monocrystalline or polycrystalline silicon. A monocrystalline panel has an efficiency of 18-20%, a polycrystalline panel has an efficiency of 15-17%. In appearance, the monocrystalline panel is black, and the polycrystalline panel is blue.

Important: Efficiency refers to the efficiency of absorbing and converting solar rays into electrical energy.

It is preferable to use a solar-powered power bank in the spring-summer season, when sufficiently strong sunlight ensures its rapid charging. Solar chargers can withstand temperatures from -20 to +45 °C.

Other memories

In addition to the listed chargers, there are mechanical and battery chargers. These devices, like Power Banks, allow you to charge your gadget when there is no power supply.

Mechanical(manual, dynamo) - the simplest charger that works from human muscular strength - twisting the rotation handle generates current. Such a charger is not suitable for fully charging equipment, but is useful for briefly recharging it when the battery or accumulator has stopped working. Manual chargers are cheap.

Battery- cheap and compact, but not very effective, since the battery has a small capacity and requires periodic replacement or recharging (for rechargeable batteries). Therefore, it is necessary to always have a spare battery. Due to the presence of electrolyte in the battery, such a charger can hardly be called environmentally friendly.

Output connection

This parameter ensures compatibility of the memory with various gadgets. When choosing a charger, you should make sure that there is a micro-USB, mini-USB, or a connector for iPhone. The number of USB outputs can vary from 1 to 4. The optimal choice would be two USB ports

It is also worth paying attention to the proprietary connector - developed by a specific manufacturer exclusively for its products (Sony Ericsson, Apple, Samsung, Nokia). You cannot connect a gadget from another manufacturer to this connector.

Adapter

The delivery set includes a car adapter (for the cigarette lighter) and a network adapter (for a 220 V network). Using an adapter, the user actually changes the type of memory. This device can be useful for recharging the charger if it is discharged or in the absence of sun (for solar chargers).

Dynamo - plays the same role as adapters with the only difference being that in this case the current is generated manually.

Cable

The cable comes in several types:

• straight- cheap and simple option, but not very convenient;
• twisted- coiled into a spring, such a cable is more compact in the absence of tension;
• in the form of a roulette- takes up minimal space;
• built-in- attached to the charger body and located in a special niche. Although this cable is relatively small, it is more convenient than other analogues, since it will not get lost.

The cable length varies: less than 50 cm, 50-100 cm, 100-200 cm. It is determined by the distance from the power source to the charger. A cable that is too short or too long will create inconvenience when operating the charger. In most cases, a length of 50-100 cm will be sufficient. For ASU, a length of less than 50 cm is suitable.

Important: Pay attention to the quality of the cable, as it affects the charging speed of the gadget. A good cable should not allow any drop in output current or voltage. Also, the low charging speed can be explained by the long length or small cross-section of the cable.

Equipment and functions

Case- used for transporting and storing chargers and adapters.

Repeller mosquitoes- scares mosquitoes, usually through ultrasound.

Flashlight- plug-in or built-in charger, powered by battery. A useful accessory in the dark.

Charge indication- displays the charge level of the charger via the LCD screen or LEDs.

Waterproof housing- protects the charger battery from moisture.

Card reader for reading SD and microSD memory cards - allows you to transfer information from your phone’s memory card to a computer or laptop. Practice shows that this function is rarely used.

In addition, the chargers have protection against overheating, overcurrent, overcharge, overdischarge, voltage surges, short circuit, and polarity reversal.

• The price of a charger depends not only on the material, capacity, build quality, but also on the manufacturer. You should not purchase cheap chargers from unknown brands, as they can not only quickly fail, but also damage the battery of the device being charged.
• In cheap chargers, the case material is made of lightweight plastic, while more expensive devices have a durable metal case (most often aluminum).
• The memory must be intact and free of defects. Otherwise, it will simply be useless.
• After fully charging your phone/tablet or other equipment, it is recommended to disconnect the charger from the mains. This will save electricity and not harm the gadget’s battery (overcharging will reduce its service life).
• Rechargeable batteries lose their charge over time. That is why you should charge the charger the day before its intended use, for example, just before traveling.
• Do not allow the electronic device to completely discharge before charging it with a battery charger. The best result is achieved when the electronic device is not charged “from scratch”, but recharged.
• Each battery charger has its own service life, which is measured in charge-discharge cycles. It is recommended to choose devices designed for 500-1000 such cycles.

Edited: 09/16/2016

Stands in front of every user of a newfangled gadget. Only a good charger can provide this. It usually comes with the phone, but can become damaged over time and become unusable. In this case, the happy owner of the device faces the question: how to choose a phone charger. Not everyone will fit your smartphone and will be able to flawlessly perform its functions. It is important not to make a mistake and not to cheap out.

The main characteristics that you need to pay attention to when choosing a charger

Type


The memory can be original, a suitable analogue or universal. Of course, it is most convenient to give preference to the first option. In this case, there is no need to rack your brains about the compatibility of devices and be afraid of explosions or fires due to low-quality Chinese counterfeits. However, it is not always possible to get an original charger. Sometimes its cost is high and does not suit the buyer. In such a situation, it is best to choose a high-quality analogue.

A good charger should indicate which smartphones it is compatible with and the output current value.
There are also universal memory devices. They can be used to charge not only phones, but also other gadgets (for example, tablets, e-readers, etc.). This purchase is very profitable because it replaces several portable chargers at once. When traveling, you don’t have to carry a full “combat kit” with you.

Output current


Must be at least 2.1 amperes. This is enough to quickly charge your smartphone and tablet.

The charging speed depends on the output current. The lower the indicator, the slower the phone will charge.

For smartphones, you need a charger with a current of 0.7 A. A standard device usually has an indicator of 1 A. In order to charge a tablet, 2 A is required. If you want to be able to charge both gadgets, then make sure that the output current is no less 2.1 A. This technical characteristic is marked opposite the word “output”, which means “output”.

And finally, one piece of advice. If you want to charge your smartphone faster, put it in airplane mode or offline mode. Then all unnecessary applications will be turned off and the irreplaceable gadget will be ready for use 15-20 minutes earlier.

So, you choose a charger for your phone. The two most important factors that will help you make the right choice are the type of charger and the strength of its output current. Let's look at each factor in more detail.

Charger type

Which charger do you want to buy: an original one, a suitable analogue or a universal charger? Of course, many people choose the original. In this case, you don’t have to worry about the compatibility of the device with the phone, charging features, or fire risks (cheap chargers sold in bunches on the markets can lead to fatal overheating of the battery). But it happens that the original memory is too expensive or difficult to find in stores. A high-quality analogue of the original mains charger for iPhone will help out.

charger analogues for iPhone and iPad

The quality of an analogue cannot be judged by the country of origin. The inscription “Made in China” can also be seen on the original, because well-known brands produce their phones, as well as components and accessories, in China. A good analogue should contain a list of compatible phone models and technical characteristics that repeat the characteristics of the original.

Most modern tablets and smartphones adopt a single power connector standard - microUSB. Therefore, it is beneficial to choose universal chargers with microUSB that can be connected to all your gadgets. One of them is the Partner mains charger. Please note that the output current of such a station wagon should not be lower than 2.1 A.

Output current

Why not lower than 2.1A? What is this parameter and what does it affect? Briefly and generally speaking, while the gadget is charging. On the device, the output current may be marked as “output” or “output”; the numbers indicated next to it indicate how much current the charger is capable of transmitting. To charge a smartphone, a current of at least 0.7 A is usually required. For a high-capacity tablet battery - about 2 A.

If you connect a phone charger to your tablet, it will take a very, very long time to charge. Chargers for smartphones are designed for 1 A. If you connect a 2.1 A charger to a smartphone? Can your phone burn out from charging this way? No, smartphones are provided with a power controller that does not take more than the smartphone requires. But the gadget will charge faster.

In addition to network chargers, you can charge smartphones through the USB port of a laptop. However, there is a possibility that the gadget will remain on charge for a long time. The USB format was created at a time when phones were not supposed to be connected to a computer, so USB ports were not designed to power a third-party device. They will charge with a current of only 500 mA (0.5A).

To speed up your phone's charging time, put it in airplane mode/airplane mode/standalone mode. Under such conditions, all unnecessary applications and modules are disabled. The smartphone will charge at least 15% faster.

A bad charger can greatly harm not only your smartphone or tablet, but also put your life in danger! Therefore, it is important to know something about charging.

We already talked to you once about, but in that article we paid more attention specifically to the battery. However, the battery itself will not charge - it requires a special Charger, which has its own characteristics and characteristics that affect the charging process and the operation of the device being charged in general.

Therefore, today we will pay attention to all kinds of chargers for phones, tablets, etc. Let's look at the questions of whether it is possible to leave the charger in the outlet all the time, what will happen if you charge your smartphone with a non-original charger, and when the charger can burn out your favorite device...

Types of chargers

Let's start with the fact that there are a great variety of chargers for various devices. Therefore, you need to limit yourself in advance to the scope of their application. We will only consider chargers for small household appliances, starting with wearable gadgets (fitness bracelets, smart watches, etc.) and ending with tablets.

We could also include chargers for laptops in our review, however, in fact, most of them are not chargers, but external power supplies. The difference here is very relative, however, roughly speaking, power supplies usually produce more current. It is capable of not only effectively charging the battery, but also fully powering the laptop from the network.

A classic charger is usually an electrical device that is capable of delivering a direct current of low voltage and power sufficient to charge the battery, but not always for normal power supply. Conventional chargers are a small current converter that is inserted into a 220 V socket (or a 10-15 V car cigarette lighter) and powers the battery of the desired device via a wire:

Wired chargers They differ from each other in the parameters of the output current (more on them below), as well as the type of plug connected to the connector of the device being charged. Today, the most common standardized plugs are microUSB, miniUSB, USB type C and Lightning. However, just a few years ago there was a lot of confusion in the mobile technology market, since even within the same brand there could be several types of sockets for charging and data transfer:

With the beginning of standardization, the market for chargers began to develop. In particular, many types have appeared portable memory. These, first of all, include power banks (from the English “power bank” - literally “power storage”). In essence, they are portable batteries that allow you to charge any mobile equipment using a standard USB port. At the same time, they themselves are charged from standard wired chargers or from alternative sources, such as solar panels:

Portable chargers can also include various devices that convert kinetic energy into electrical energy. They are based Dynamo machine, which generates current from rotating a special handle or constantly pressing the lever with your hands or other devices (for example, a bicycle wheel). The advantage of such chargers is their complete independence from the mains. However, the disadvantages are the labor intensity of production and not always satisfactory quality of current.

Back in the early 2000s, they were popular on the market universal chargers crabs and crocodiles. The main disadvantage of both types of chargers is that they require removal of the battery. However, at one time they saved many owners of phones with specific charging connectors, since they connected directly to the terminals of any batteries and even allowed them to adjust the current parameters (though not all models):

Recently there have also appeared wireless chargers. They can be either already integrated into modern technology (mainly smartphones) or supplied in plug-in form (removable back covers, covers, etc.). Such devices consist of a base connected to the mains, which emits a current of the required value (in the form of an electromagnetic field), and a receiver inside the charging device, which picks up the radiation and charges the battery with it:

The advantage of wireless charging is that there is no need to constantly pull the power connector, which gradually wears out and eventually fails altogether. However, due to the fact that the technology is just beginning to be implemented, it also has a number of disadvantages:

• small radius and narrow focus of radiation (when charging, the smartphone must be placed on the base in a strictly certain place, otherwise even a slight displacement may cause it not to charge at all or to charge only slightly);
• increased heating of the device being charged;
• slower charging speed compared to wired;
• noise from the cooling cooler inside the base;
• high cost of a high-quality charger.

As you can see, the external charges differ quite greatly. But as for the internal structure and application, let’s figure it out now.

Charger Specifications

All important characteristics of the charger are usually indicated on a special label pasted on its case, or engraved or written directly on it. Let's see what it says there:

The most important characteristics are the parameters incoming(“In”, “Input” or “AC”) and coming out(“Out”, “Output”, “DC”) current. Most chargers intended for import into post-Soviet countries are designed for operation with our electrical networks, in which the nominal voltage is 220 Volts. However, in some countries the current in the network is lower than ours (from 100 to 150 V), so chargers from those countries can simply burn out when connected to our sockets. Therefore, the first thing you need to do is make sure that in the “Input” group the upper permissible value is indicated - 220 (or better 240) Volts.

Now let's look at the values ​​in the "Output" group. The most important here are the output indicators voltage and current strength. Despite the fact that modern charge controllers in smartphones and tablets are equipped with good protective mechanisms that reduce too much current to the required parameters, it is better not to overload these systems again and select charging in accordance with the nominal voltage of the battery of your device.

Now about current strength. The higher it is, the faster the battery will charge. However, each battery has a certain limit, which should not be exceeded. For example, a battery with a recommended current of 1 Ampere can be charged at 1A or lower, but when charging at, for example, 2A, there is a chance that the charge controller's protective circuit will fail and it will burn out (literally!).

Therefore, if for some reason you cannot charge your mobile device from a “native” charger, then it is better to use the USB output of a computer or laptop. It produces a rated current of 0.5 A and a voltage of 5 V, which is safe for most gadgets. True, this approach also has a downside. If your device is equipped with high current charging (fast charging technology), then at low current the battery will take charge either very slowly or not at all.

And one more nuance that is worth paying attention to is the charger cable. Nowadays, many chargers come with a replaceable cable that plugs into a regular USB socket. This approach is fully justified, because it is the cable that most often fails with frequent use. However, when it comes to replacing the cable, it is important to choose a good one.

Firstly, it must be flexible, but at the same time, durable. Many people advise taking fabric-braided cables: they look more presentable and have additional protection. Secondly, it is better to take a shielded cable, which is less susceptible to electromagnetic interference. And thirdly, the cable length should ideally be in the range of 50 - 100 cm, since longer cables will have greater current losses.

In order not to be unfounded, I will give a real example of charging my phone from one charger (nominal: 4.5V 0.7A) with different cables: the original half-meter and the cheap two-meter from Uncle Liao (measurements were carried out using the Ampere application). I think comments are unnecessary:

Features of operation

Well, now it’s time to dispel and confirm various rumors related to chargers.

- It’s better to charge your phone with low current (MYTH)

Many people advise using the principle “less is more” to charge mobile equipment only from USB ports or from low-power chargers. An increase in battery life and capacity is stated as an advantage. Alas, this is a myth! Of course, such charging will not make things worse, but the battery capacity will never increase above the specified rating. In addition, low current will very slowly charge modern smartphones with fast charging function...

- To speed up charging you need to take a short wire (TRUE)

The shorter the wire from the charger to the device being charged, the less current loss will occur in it. Accordingly, charging will be more efficient and faster. The only condition for this rule to work is a high-quality cable and wire plug, since in cheap Chinese USB cords, even with a short length, serious losses can be observed (see screenshot in the previous section).

- You can’t leave your device charging overnight (MYTH)

This myth is due to the fact that in older phones the battery charge controller did not stop charging after reaching 100%. As a result, the battery gradually warmed up and could catch fire! Modern mobile devices are reliably protected from this problem. Once fully charged, the controller simply cuts off the current and recharges your device to 100% when the charge drops.

However, it is worth considering that, like any automation, the controller’s protection may fail. In this case, the battery, when overcharged, actually begins to overheat and may explode or catch fire. Therefore, if you notice that after reaching 100% charge your device is suspiciously warm, it’s time to contact a service center to check and possibly replace the battery.

- You cannot completely discharge the battery (TRUE)

Modern mobile devices are usually equipped with lithium-ion or lithium-polymer batteries, which really cannot be discharged to zero. Due to such a discharge, the charge controller may fail and the battery will have to be replaced.

By the way, it is for this reason (and not so that the buyer can test) even switched off phones in stores are periodically recharged. Moreover, it is recommended to do this according to the instructions when the charge drops below 30 - 40%.

True, there is a nuance here too. Even in a discharged battery, a small supply of current still remains. This is a kind of emergency reserve that keeps the battery controller operational even after the user completely discharges his device and it turns off. That is why, even if you completely discharge your phone, but put it on charge in the evening, then most likely nothing will happen to it! But if it lies unloaded for a couple of days, then anything can happen...

- You cannot use the phone while charging (MYTH)

In fact, if you use the original charger, you can easily use your device while charging. The charge current in this case, as a rule, is greater than the discharge current, so the maximum that this threatens is a slightly longer process of charge accumulation.

At the same time, when using weak chargers or when charging from a poor-quality electrical network, the charge current may be less than the nominal one. If it turns out to be lower than the discharge current, then your device will continue to discharge, even when connected to the network, or the charge simply will not accumulate.

- It is better not to keep the charger in the outlet all the time (TRUE)

And there are two reasons for this. Even when the charger is not charging anything, but is simply plugged into a socket, it does its job. Consequently, firstly, it wears out slowly, and secondly, there is a small current consumption, which in a month can amount (depending on the power of the charger) to a couple of kilowatt-hours!

You can calculate the current consumption by multiplying the rated voltage by the current indicated on the charger body, and then multiplying the resulting value by the required amount of time in hours. For example, for a standard 5V 1A charger, the current consumption will be 5 Watts per hour. Hence, per day we have 24x5 = 120 Watts, and in a month it will accumulate 120x30 = 3600 Watts! That is, 3.6 kilowatt-hours.

- You cannot use non-original chargers (MYTH)

If the current ratings on the original and non-original chargers are the same, then it is quite possible to use any of them. The maximum that can result from using a non-original charger is a weaker current output, which will charge your device more slowly.

conclusions

Today there is quite a large selection of chargers for literally all occasions. However, if you know their main characteristics, which affect the quality of the charge, you can choose exactly what suits you without any problems. And at the same time, it is not so important whether it is an original charger or from a third-party manufacturer. It is only important that it is not some kind of consumer goods at all.

When choosing a charger, pay attention to the manufacturer (it’s better to take, after all, the original or chargers from well-known companies, like Belkin or AUKEY) and try to avoid Chinese counterfeits. The length of the charger cable should ideally be 50 - 100 cm. And, naturally, the rated current should correspond to that indicated on the battery of the device being charged. That's all the wisdom :)

P.S. Permission is granted to freely copy and quote this article, provided that an open active link to the source is indicated and the authorship of Ruslan Tertyshny is preserved.

Battery capacity is one of the most important criteria for choosing a phone. Everyone wants their device to serve for a long time and not fail at the most crucial moment. However, battery power is limited, and even on the most modern smartphones it will eventually run out, especially if you actively surf the Internet, use a GPS navigator, or play games. In some cases, it is critical that the phone remains turned on while charging it is not possible. For example, if you are on the road or find yourself in an unfamiliar city. In this case, a suddenly dead phone can cause a panic attack.

To prevent such annoying situations and always be in touch, you should purchase an external battery for your phone. This small, portable device will help you charge your battery whenever you need it. When choosing such devices, there are several important characteristics to keep in mind.

How to choose a portable charger?

When choosing a portable battery, you should consider the following indicators:

• Battery capacity
• Current strength
• Number of USB connectors
• Accessories
• Additional features

Battery capacity

One of the most important indicators is the capacity, which is expressed in milliamps per hour (mAh). When choosing a device, be guided by the fact that the external battery exceeds the capacity of the device being charged by approximately 2.5-3 times. As a rule, the actual capacity of the battery does not correspond to what is stated by the manufacturer. Therefore, they cannot boast of 100% efficiency. Therefore, a battery with a capacity of 5000 mAh will not be able to charge a device with a 2500 mAh battery 2 times. For small devices, a battery with a capacity of 5000-10,000 mAh will be suitable. Having studied the volume of the device, you will know how to choose a portable battery for your phone and not make a mistake.

Current strength

The efficiency of your portable battery depends on the amperage. For older phones, 0.5 A is enough, and for more modern smartphones and tablets - 1 A. It is worth choosing a battery that will suit your phone. But it is also advisable that before choosing a portable charger, you should make sure that it has a “fast charging” function.

Number of USB connectors

If the device has two connectors, then you can charge two devices at the same time - yours or a friend's. This is very convenient, for example, if two important devices are discharged.

Accessories

As a rule, the standard PowerBank package includes adapters for various types of connectors - microUSB, Lighting, old Apple connector, miniUSB. It will be useful to have a network adapter for PowerBank included.

Additional functions

As a rule, all modern external batteries have special indicators that allow you to visually assess the amount of charge remaining. There are also models with digital LCD indicators.

For safety reasons, batteries are equipped with automatic shutdown systems that protect devices from sudden power surges and short circuits. Some devices have automatic load shut-off features that help prevent wasted energy.

Many power banks have LED lights, which will help you get lost in the dark. Also, some devices are equipped with additional gadgets such as wi-fi, flash drives and even hand warmers. Before choosing a portable phone charger, be sure to evaluate their list of features and choose the ones you need most.

Rating of portable chargers

There are several leaders on the market whose characteristics are superior to models from other manufacturers. We’ll talk about them now, and try to find out which is the best external battery to buy for your device.

Canyon CNE-CPB44 - the best portable battery

Taken from the site: shark.sk

Compact, inexpensive and convenient PowerBank that will save you in difficult times. It is so small and light that you can hide it in your pants or shirt pocket without any hassle. A powerful current of 1A allows you to charge your phone with the same efficiency as from a wall outlet. The battery case is durable. Thanks to 4 indicators, you will always know how much charge is left in the device. The device is also equipped with a powerful LED flashlight. The battery capacity is 4400 mAh.

Samsung EB-PN915B

Portable battery from a well-known Korean company. The device boasts an impressive 11,400mAh capacity. The current power is 2A, which allows you to charge any phone in the shortest possible time. Separately, it is worth noting the ability to charge two devices simultaneously. The battery has a built-in cable 6 centimeters long. The charge level is indicated by corresponding indicators on the surface of the device.

Interesting!

The design for the PowerBank was created by the company Subgsil, which, wanting to draw attention to the problem of the survival of rare animal species, painted images of endangered fauna on the front side of the battery.

InterStep PB16800 - the best external battery for your phone

Taken from the site: reditstudio.ru

This compact battery has an impressive energy reserve of 16,800 mAh. This amount of charge is enough for the longest trip. The oblong design of the device makes it convenient to use. The battery has a powerful built-in flashlight, as well as two USB outputs for connecting to external devices. A current of 2 A allows you to charge the device as quickly as possible. In total, the battery lasts for 500 charges.

Hiper SLIM3500

Taken from the site: sidex.ru

This portable power bank features a stylish and elegant design. Thanks to the thin 4.5mm body, you can carry the device with you in your pocket without unnecessary inconvenience. The battery capacity is 3500 mAh. The current strength is 1 A. The LED indicator will always keep you informed about the current charge of the device. This PowerBank comes with a USB adapter.

ASUS ZenPower ABTU005

Taken from the site: stolica.ru

The battery of this portable battery is enclosed in an aluminum case that is no larger in size than a credit card. The output current is 2.4 A, which is comparable to charging from a regular outlet. Charging time will be approximately 2.5 hours. The battery itself has a capacity of 6600 mAh, so it will last for a long time. The device is also equipped with an emergency shutdown system, which will protect the device in case of a short circuit.

Xiaomi Mi Power Bank 16000 - the best portable charger

Taken from the site: krutmobile.com.ua

Xiaomi has taken a leading position in the electronics industry, offering the best price-quality ratio. Their portable batteries are no exception in this regard. The device has a capacity of 10200 mAh. The presence of two ports allows you to charge two devices at once. The current on both ports is 2.1 A. This is enough to charge the battery of a tablet or smartphone in a couple of hours. The amount of charge in the battery can be recognized by the indicator on the device.

Canyon CNE-CPB100

Taken from the site: petromap.ru

The Canyon company became famous for producing portable batteries. The CNE-CPB100 model boasts a capacity of 10,000 mAh and the presence of two USB connectors. This way, you can charge two devices at once. The output current power is 2 A. The compact dimensions of the device make it easy to carry in your pocket or purse. Separately, it is worth noting the affordable price of the device.

TP-LINK TL-PB10400

Taken from the site: compw.ru

TP-Link decided to experiment with the shape of the device and created an elongated rectangle instead of the usual flat battery. The design, unusual for powerbanks, looks very nice and is practical.

Interesting!

The device capacity is 10,400 mAh. This volume is enough to charge the currently popular iPhone 6S 4 times.

The device has as many as 6 degrees of protection against sudden energy surges or short circuits. The battery is equipped with two USB ports with a current capacity of 1 and 2 amperes. TP-Link engineers also equipped the gadget with a blue LED flashlight. Thus, the device will not only save your phone from sudden shutdown, but will also help you find your way in the dark.

Canyon CNE-CPB78

Taken from the site: kupi.tut.by

A worthy product from a well-known manufacturer of mobile peripherals - Canyon. CNE-CPB78 has a cute and compact design. Another plus is the presence of two USB ports and a built-in LED flashlight. The impressive 6800 mAh battery capacity allows you to charge the phone in a matter of hours, and the battery lasts for 3-4 full charging cycles. Also a significant plus is the affordable price.

Xiaomi Mi Power Bank 10000

Taken from chipmart.ru

Another product from a famous Chinese manufacturer. This is a fairly recent development from Xiaomi, which has become lighter and more compact than its predecessors. The battery was enclosed in an aluminum case, which should reliably protect your device from external influences. At the same time, the Powerbank weighs only 200 grams. The battery capacity is 10,000 mAh. This is enough to fully charge any modern smartphone three times. In this case, the battery itself is fully charged in 5.5 hours. The amount of available charge can be determined by the corresponding indicators on the device.

We hope this TOP will help you choose the best portable charger. In this rating of portable batteries, we included the most popular devices that have received the greatest recognition among consumers. But when choosing, you still need to focus on the performance of your device, so as not to make a mistake.