How to choose a charger for your phone? How to choose a charger so as not to burn your smartphone. Yes, even save What charger is best for android

A constantly discharged mobile phone or tablet has become a headache for the user of modern digital technology. Here the reason is clear: manufacturers are adding more and more functions to their devices, and their characteristics are becoming even more powerful. This, in turn, leads to faster battery drain, and we, with intensive use, need to charge our favorite assistants more often.

With a huge amount of portable electronic equipment, the question becomes relevant: “What kind of charger should I use? So that it does not charge for a very long time, and the battery serves properly? ". Let's figure out which charger is best suited for your gadget.

Cell phones. A mobile phone is the number one device in the life of a modern person. First of all, when choosing a charger (charger) for the phone, you need to pay attention to the type of connector for connection.

In most Android phones, this is MicroUSB, the MiniUSB connector is less popular, and in older models, the memory connectors may differ depending on the manufacturer. Apple went a separate way - it uses its own connectors: the iPhone from the first model to the iPhone 4S uses a wide 40-pin (40 Pin) connector, and, starting from the 5th model, a thin Lightning connector for 8 pins (8 Pin).

The quality of the charging process is affected by the technical characteristics of the charger, there are two of them: voltage (measured in Volts (V)) and current strength (measured in amperes (A)).

Almost all mobile phones require a five-volt (5V) charger, and the current may vary. Simple push-button phones use memory up to 1A, and smartphones need current from 1A to 2A. Most modern smartphones are charged from 1A, but some phones with capacious batteries may require a more powerful charger, for example, (2A), models with 4000 mA (2A) batteries, Z series (1.5A) and others. When choosing a memory, you can focus on the factory specifications (manufacturers always indicate this information on its case, albeit in very small text). And in another case, you can read it in the instructions for the mobile phone, as well as on the official website of the manufacturer.

But what happens if you use a charger that has different specifications from the factory? If you charge your phone with a weaker charger, then charging will take longer, especially if you are downloading something, even if it is 3D models that this site provides, and this will ruin the battery over time. And when using a strong memory, the built-in phone controller will take only the necessary part of the current and nothing bad will happen, although manufacturers do not recommend doing this. Note that USB outputs on computers only have 0.5A, so the phone takes a long time to charge this way.

To increase the battery life in your phone, you should know the following rule: if the charge is too low (less than 10%), charging for a lithium-ion battery is “stress” and negatively affects its performance. Therefore, we make sure that the battery charge does not fall below 10-15% and do not leave the phone to charge overnight. It is better to recharge the phone (for example, for 15-30 minutes), it does not damage the battery.

Tablets. Technically, most tablets differ little from mobile phones, only they have a larger battery, which is why they use a powerful charger. But when choosing a charger for a tablet, you need to take into account the nuance - some tablets are charged from a 12-volt charger, while others from a 5-volt one. Therefore, if you connect a tablet that needs 5V to a 12V charger, it may burn out. Otherwise, the tablet simply will not charge. All other selection rules are similar for mobile phones: you need to determine the correct amperage (for most tablets it is 2A), monitor the charge level but do not recharge.

Notebooks and netbooks. Manufacturers bundle their laptops with a variety of chargers, so their choice should be treated more carefully. Here you can purchase either the original memory (identical to what was included) or a universal one. The universal charger is suitable for several types of laptops, so before buying it, check if it fits your PC. Check if the connector is suitable for connection, and also if the parameters correspond to the laptop. If the universal charger has a voltage selection switch, it must be set to the correct position before connecting to a computer. Remember, when using a laptop for a long time from the mains, its battery should be removed (of course, if this is provided for by the design). This will prolong the life of the battery itself.

Electricity from the air. Nikola Tesla invented the ability to transfer current from one device to another inductively (contactless), and modern manufacturers began to use his ideas. Such technology, including mobile phones, is currently small, but this situation is gradually changing.

In order to charge the phone, it is enough to put it on the charger, without connecting the cable, but it is necessary that it has a built-in magnetic receiver. There are few such models: these are some Nokia models, Samsung's flagship Galaxy S6 and several other types of phones. By the way, the Finns were the first to use this know-how. If your phone does not support wireless charging as standard, do not be discouraged, there are covers and interchangeable phone panels with a built-in signal receiver. Such an accessory will increase the functionality of the phone, but also slightly increase its size.

Now we figured out how to choose the right charger for your phone, tablet and laptop. And remember, the better you take care of the equipment, the longer it will serve you.

Probably the trouble of almost everyone is their battery capacity. The capacity of the batteries that modern phones are equipped with allows us to hope for the best. So, a phone with excellent characteristics (multiple cores, large amount of RAM, the latest processor, high processor frequency) is most often equipped with a battery whose capacity barely exceeds 2500 mAh. If the smartphone has high performance, then this capacity is hardly enough for him for 12 hours.

You can, of course, pay attention to phones that have batteries with a large capacity. But if you already have a phone with an average battery, then you can go the other way. Agree that if your phone runs out of power pretty quickly, then I would like it to at least charge quickly. And for this you need to have the right charger. And by the way, chargers tend to break down very quickly, so if your charger is broken, then this article will be useful to you.

So, it is best to buy an original charger that is designed for your phone model. But not always such charging will be able to quickly charge your phone. If you want the device to charge relatively quickly, then pay attention to the label of the charger. There are various inscriptions, but we need to find the inscription: OutPut (input current value).

Here you can see different output current values. So, on some devices OutPut = 0.65 A, and on some OutPut = 1 A. But many will say that they do not need to know the output current value of their charger. But in vain. After all, the higher the value, the faster the phone charges.

If you are going to the store to buy a charger, then pay attention to this value. For a smartphone, the best option would be to purchase a charger that has an output current value of 2 amperes. You should not take more, as the phone will heat up when charging, and this affects its life.

By the way, when choosing a charger, you should also pay attention to the cable, which is not the last participant in the charging process. There is no need to save and give preference to thin cables. It is better to spend a little money and take a cable with a normal wire diameter. As you can see, in order to choose a good charger, it is not necessary to know a bunch of different information. It is enough to remember two rules: the size of the output current and the quality of the usb cable through which the current will flow.

Over the past couple of years, a large number of portable chargers have appeared on sale. How to decide on the most suitable option and what parameters you should pay attention to first of all, we will tell you in this article.

When choosing a power bank, be prepared to compromise between capacity - how powerful the device is - and portability. Increased capacity in 99% of cases is a sign of large, heavy devices. You can buy a battery that can fully charge your 10-inch tablet twice, but such a gadget will take up a lot of space in your pocket. It is worth remembering that when you charge your smartphone, you will most likely want to use it. See how these two devices fit in your hands while charging (or imagine if you can't feel it).

If you are often on the road or travel, and you need to fully replenish the charge of your device, then you can take a large-capacity charger in a travel bag. In case your goal is to keep your mobile up and running for a couple more hours, take a closer look at small, truly portable options.

Battery capacity

This value expresses the amount of energy that a fully charged battery can deliver before being completely discharged and is indicated in milliamps per hour, or mAh. Larger devices, like tablets or laptops, have bigger batteries inside because they use more power. For comparison, the third version of the iPad boasts a powerful 11666 mAh battery, and the fifth iPhone has a 1400 mAh battery.

This means that, under ideal conditions, such a battery can power a 1A load for about an hour and a half. However, such calculations are correct only when the nominal voltage of the battery is equal to the voltage in the load circuit.

Output voltage

Current portable power sources are equipped with lithium-ion or lithium-polymer batteries. Depending on the type and design, the battery output voltage rating may vary, while the standard USB power rail voltage is 5VDC. Obviously, in this case, a 2000 mAh battery with a nominal voltage of 3.7 V, even under ideal conditions, will not work even for an hour and a half when powered by an external load connected via the USB bus and consuming a current of 1 A. In addition, the amount of electricity that can be stored by batteries with the same capacity, but different voltage, will vary.

The choice of the optimal energy capacity of a portable battery is in most cases a compromise. On the one hand, it is clear that the capacity of a portable battery must be sufficient to maintain the operability of existing devices for a certain time. In addition, the desire of many users to have some reserve in case of unforeseen circumstances looks quite natural.

Maximum output current

Another important point is the current strength that the battery produces. To charge most smartphones, 500 mA is enough, this is the minimum current in such devices. Often, charging tablets and a number of smartphones requires a current of 1000 mA, this parameter should be paid close attention. If the battery has several outputs, then the connected load can vary in the range of 1000-3000 mA. In order to determine what charging current you need, look at the markings of the charger from your tablet or smartphone. The charging speed of your device depends on the correct choice of this parameter.

A more difficult task is choosing a portable power supply designed for use with a netbook or laptop. To get started, you need to look at the data sheet of your portable PC to find out the electrical characteristics of the power rail - in particular voltage and current. As a rule, in portable batteries of this type, it is possible to switch the voltage at the main output, choosing the desired one from several fixed values. In addition, it is useful to make sure that the selected power supply is capable of maintaining the required current in the load circuit at the selected voltage. Well, of course, you should check the availability of a cable or an adapter with a connector of the appropriate design in the package.

Number of adapters

In the simplest models of portable power sources, there is one USB port for connecting a device to be charged. As for more powerful modifications, many of them are equipped with a pair of outputs. This allows you to charge two devices at the same time if necessary.

When choosing a model with two USB outputs, you need to pay attention to an important nuance. Most devices provide maximum power only when one device is connected; if you use both outputs at the same time, then the maximum current limit will be lower.

The most common solution today is to connect the cable from the device being charged to a standard USB outlet mounted on the body of the portable power source. Some models of portable batteries are equipped with a built-in cable with a miniUSB or microUSB plug. To connect to the power connectors of portable PCs, the package usually includes a universal cable with a set of interchangeable adapter tips. The lack of charging from a regular network is a serious disadvantage, since in this case you will have to recharge the battery only from a computer and it will take much longer

Additional functions

Device Charging Indicators- usually there are three, sometimes four LEDs on the case that show the battery charge. Unfortunately, they give a very rough idea of ​​how long the battery will last. In the case of a battery that has been used for about a year, you can completely forget about the last division, as a rule, the indicator starts to lie and the charge is no longer enough. There are external batteries with digital indicators, they are much clearer and more visual, but you will have to pay 20-30 percent more for them than for similar batteries without such displays.

It is not uncommon for devices to be left connected to a portable battery overnight. In such a situation, the function will be useful automatic power off at the output after recharging. The fact is that the algorithm of the power management system of many modern devices provides for the use of electricity from an external source not only for recharging an autonomous power source, but also for operation. Thus, the device, even after recharging is completed, continues to consume electricity from an external source - in this case, from a portable battery.

To prevent unproductive consumption of electricity in such a situation, the function allows automatic load shutdown. Its work is based on the fact that in the process of recharging the device consumes much more current than during operation. As soon as the current in the load circuit drops to a certain value, the automation turns off the supply of electricity to the corresponding output.

On / off button - must be recessed into the case to avoid accidental pressing in pockets and subsequent battery discharge. In most models, this parameter is not given any importance, which is sad.

Some external batteries are equipped flashlight. Such a function can be very convenient in the car, on a trip or at a picnic in the evening.

It is also possible to supply this category of energy carriers WiFi router And solar battery. These options can be very useful for those who often travel to nature and want to be able to distribute 3G Internet or recharge their devices from solar energy.

Our most popular models:

The high-capacity plastic charger is quite light, its weight is 250 g. The device is able to charge almost any modern smartphone or tablet several times. Additionally, it has a solar battery, as well as a flashlight.

The battery case is made of aluminium. Not only is it durable and impact resistant, but it also looks nice. It is about the size of a phone, only a little thicker, and weighs a little - 300 g. The power bank itself is charged from a USB port or a regular outlet using a network cube. And the LED indicator will show you how much power is left, so you don't forget to charge the battery in time.

The body of the 23000 mAh charger is made of impact-resistant plastic with a pleasant soft touch coating and glossy inserts on the sides. The kit includes 10 adapters for various models of laptops and camcorders, an additional cable with a microUSB output and a set of adapters for Nokia phones, a wide connector for iPhone 4, iPad and iPod of the previous generation, and a Lightning connector for iPhone 5, iPad and iPod of the new generation.

Another "tourist's friend" - a power reserve of 20,000 mAh is enough to recharge a smartphone several times. The MP20000 weighs almost half a kilo (more precisely, exactly a pound, that is, 454 grams), and you won’t be able to carry it in your pocket. The battery is charged via the microUSB port. On the edge of the front panel there is a charge indicator, consisting of four segments, a diode indicating charging, and a single button. A short press of it allows you to see the remaining energy, and a long press turns on the flashlight.

The conditions of modern life are such that a person can no longer do without mobile devices - be it a phone, a laptop, a GPS navigator, a music player. All these devices need recharging, but it is not always possible to get to a regular outlet. It is in such cases that a portable charger that meets all the requirements of the user will come to the rescue.