Portable chargers for mobile phones. Portable phone chargers: what it is, how it works Phone charger without an outlet

With huge quad-HD screens and powerful 8-core processors, our smartphones and tablets are getting bigger, better and faster, but their battery life is also shrinking. That is why portable batteries and portable chargers are becoming increasingly popular.

Despite technical innovations such as turbocharging mode, battery life is still a problem. For those who find cases with a built-in battery too bulky, a portable charger is the way to go.

The essence of the portable charger is already revealed in its name. A small box, slightly larger than a modern smartphone in size, but in fact it is one large battery. They usually have a USB port for use with the cable that came with your phone, and some also have built-in cables for added convenience.

The best example of the need for such a device is a popular novelty. It has a beautiful Quad-HD display, a powerful 8-core processor, but only a 2550 mAh battery capacity, which, moreover, cannot be removed and replaced. As a result, many users deplete the battery before the end of the day, and do not always have access to a power outlet.

If you have a portable charger, then you simply connect your Galaxy S6, Moto X, LG G4, Galaxy Note 4 (underline as appropriate), or any other device with a micro-USB input to it and reanimate your battery. Some devices even have a high-speed 2.4A output, which allows you to charge your smartphone as quickly as from a conventional outlet and faster than from a car charger. All this makes them invaluable for smartphone owners.

Below is a list of the best portable chargers for smartphones and tablets that Android device owners will surely enjoy (however, iPhone users will not be offended either).

The TYLT charger is equipped with two built-in cables and a 5200 mAh battery, which is enough to fully charge almost any flagship smartphone at least one and a half times.

TYLT Energi 5k+ has a micro-USB cable for Android devices on one side, and a lightning cable for iPhone on the other.

After the charge is used up, the LED indicator lights up red and then the device can be recharged using any charging cable with a micro-USB connector. The device also has its own USB 2.0 port for those who prefer to use a longer cable.

The price of a new device is about $90.

Perhaps the best price/performance ratio is offered by Anker, with a 10,000 mAh battery and a cost in the region of $20. This device offers almost twice as much as TYLT, and for a much more reasonable price. Despite the abundance of inexpensive chargers, only a few really live up to the claimed battery capacity - and this is definitely one of them.

Moreover, Anker can be considered the best of them. Thanks to the long-lasting cells, the battery has a long service life and holds a charge well. The declared capacity of 10,000 mAh is justified even with practical use- Anker can fully charge the Nexus 9 twice and Samsung Galaxy S6 almost four times. The device has two ports for connecting multiple devices at the same time and is slightly smaller than the average Android smartphone.

MyCharge is a popular brand offering high quality, durable and long lasting portable chargers. They are slightly more expensive than competitors, but they have a waterproof design, built-in cables, an additional USB port and, importantly, they are recharged directly from a wall outlet.

That is, instead of having to charge the 9,000 mAh batteries with the usual micro-USB cable used to charge your phone, which can take up to 5 hours or more, you can simply plug myCharge into a wall outlet using a retractable plug. Thus, the user can recharge the battery much faster in order to take the device with them. The battery is enough to charge the LG G4 three times.

This device uses Qualcomm's latest Quick Charge 2.0 technology. It allows you to raise the battery level from zero to fifty percent 65% faster than conventional charging. In practice, we can say that Aukey gives a 50% charge in just half an hour. This is quite enough to last the rest of the evening or hold out until the end of the working day.

Unfortunately, this model has only one port, which is somewhat offset by the speed of charging. The price of a new device will be about $50.

Aukey also offers a more traditional model. The portable charger has a 20,000 mAh battery, but does not have a fast charging function (as, indeed, most devices on the market). Although this charger cannot be included in the list of leaders, the price-to-battery capacity ratio makes it a very profitable purchase.

IOGEAR is not a very well-known brand, but the portable chargers they offer are of excellent quality. The 12000 mAh charger from this company is a great example of the golden mean. Not too big, not too small, with enough power and two USB ports to charge more than one device. Like most of these devices, this one has an LED charge level indicator and a simple on / off button, and also slowly charges using a standard cable.

IOGEAR is somewhat larger than other devices in the 10,000mAh class, but still not enough to break the category of "portable" devices.

Although this device can hardly be called thin or light, it can charge three smartphones at once. The 10,400 mAh battery is enough to fully charge a couple of tablets and a phone. Or to charge the smartphone several times during the day while traveling, for example.

This charger from TYLT does not have the company's usual built-in cables, but comes with a 1.5 meter micro-USB cable and three USB ports that allow you to use any cables you have.

Limefuel Lite LP15ox carries a 15,000 mAh battery on board, can charge two devices at the same time, has a small LCD display showing the percentage of remaining charge, which is more accurate than LED indication, and a small built-in flashlight.

The device has high-quality "long-playing" battery cells, has two outputs (one for 2.4 A), and the flashlight is very convenient, for example, on a hike. Charging starts at the touch of a button and ends automatically when your device is fully charged. There is also a version with a larger 20,000 mAh battery, but it loses some in convenience due to size and weight.

While many buyers want a portable charger, some place a particular emphasis on "portability". Most of the devices mentioned above are still larger and heavier than an ordinary smartphone. Amazon Basics offers credit card-sized chargers, 2,000, 3,000, 5,600 mAh, and even a 10,000 mAh option, which is one of the thinnest on the market. These devices are lightweight, strong and durable and can charge two devices at the same time. They're also wallet-friendly, with prices ranging from $10 to $30.

The Anker Astro Mini is another great option for those who want a truly portable device. It has the dimensions of a lipstick tube and a 3,200 mAh battery.

This charger is really very small and handy. An essential device that can be recharged in a few hours and then slipped into your pocket or bag to quickly refresh your Galaxy S6 when needed. The battery is reportedly not enough to fully charge the S5 with its 2,800mAh battery. It is not clear whether the losses during charging are so high, or whether the manufacturer is lying a little. However, for those who want smaller and cheaper, an excellent choice.

Similar in size to the previous sample, this baby carries a cylindrical 3,000 mAh battery and an LED flashlight. You can fully charge your LG G4 or Galaxy S6 and light yourself up if you need to. A long press on the power button lights the flashlight, a short one, respectively, starts charging.

Closes our list with one of the largest and most powerful portable chargers. It's more difficult to call it portable, but this monster supports up to four devices at the same time, and even three of them can be tablets.

Two regular and two high-speed (2.4A) charging ports allow you to charge four devices at the same time with a 20,800 mAh battery. Equipped with a simple on/off switch, four LEDs showing remaining charge, and one of the longest battery life of any device on our list.

Even three weeks after charging, Lenmar Mutant holds more than 80% of the charge, allowing you to use it when you need it.

If you often need to charge on the go, need plenty of spare power for long business conferences, or just want to charge your tablet and smartphone at the same time, then this is your choice. This big guy won't let you down. Yes, it's big and expensive, but it's worth it. Well, or for the completely crazy: buy ZeroLemon 30,000 mAh Charger.

Solar Power Bank Charger

In the current age of high technology, each of us has many different gadgets. These are smartphones and, players and iPads, tablets and. All this electronics works from the energy accumulated by the battery during recharging from the mains or other power source. But, leaving to relax in nature or being, for example, on a long bus trip, it becomes problematic to charge the equipment.

Of course, there is a way out of this situation, and not even one. You can purchase an additional battery for your mobile phone instead of a charger - this will save you a lot of time. If the phone runs out of power, you should insert a second battery and you can continue to communicate. But in this case, you will have to buy separate batteries for each gadget and carry them with you, and this will result in unnecessary and unjustified expenses.

Benefits of a portable phone charger

Another alternative is to buy a charger that does not need an electrical outlet. Just connect it to your mobile phone with a cable. Often such a device is called a pocket device, because it has a very small size and weight, and the charging process itself can take place in your suitcase, bag, or just in your pocket. This device (by the way, they are also called external batteries) is becoming increasingly popular for one simple reason - it is very convenient! Let's talk about the benefits of a portable charger for your smartphone or regular mobile phone:

1. The main advantage is the versatility of such a device, because with the help of a single device you can charge almost any of your gadgets.
2. The external battery is universal, and therefore it is convenient to use it on a family trip, charging the mobile phones of all family members in turn.
3. Some types of portable devices (we will talk about them a little later) do not need an electrical outlet at all, but are charged from alternative energy sources.
4. Universal portable charger will be a great gift for anyone. modern man who uses the phone.

Types of pocket phone chargers

There are several types of such chargers. The most important difference is the power of the charger, designed for a phone or, say, a netbook. We will consider the types of so-called low-power chargers designed specifically for mobile phones and other portable devices.

Almost everyone has a mobile phone, so the issue of battery charging is logically common. A spare charger will help partially solve the problem if you are at work or away, but it will not be able to help outside. What devices do you need to stock up on to protect yourself from a suddenly discharged battery?

Via USB

The USB cable will allow you to quickly recharge your phone from any tablet, TV, laptop. Modern devices have a special USB port through which you can connect your smartphone. This is the easiest way to charge the battery, because in any team you can find at least one person with a tablet or laptop. By the way, TVs are now even in clinics and hairdressers, which greatly simplifies the situation.

Additionally, you can use the PowerBank device. It is small and will fit even in a lady's handbag. This is a special battery with which you can charge your phone via a USB cable.

Car charger

A car is a great helper in recharging your phone battery. You can replenish the energy reserve through the cigarette lighter or car radio equipped with a USB connector. To do this, just buy a USB adapter.

"Frog"

Charging-"frog" - a small power supply, powered by an outlet. To charge your smartphone from it, you must first remove the battery. This is not possible in all gadgets, which is undoubtedly a disadvantage of this device.

The process of connecting the battery to the "frog" is simple. The battery is simply inserted into the device in the correct polarity. Where exactly to connect "+" and "-" - depends on the model of the "frog". The tongues of the "frog" contacts should be adjacent to the extreme contacts on the battery. After connecting the battery, press it with a clamp and connect the prepared device to the socket.

On the "charging" there is always a green indicator. If everything is connected correctly, it will light up. If the indicator is not active, you need to remove the "frog" from the socket and double-check whether the contacts are connected correctly, whether the polarity is correct.

Directly with bare wires from an old charger

In a critical situation, in the absence of special cables and adapters, you can replenish the battery through the bare wires of the old "charge". Usually in devices, the "+" wire is colored red, and the "-" wire is blue. Sometimes the polarity is indicated directly on the case at the exit of the wires. In some Chinese devices, they are colored incorrectly, which makes it difficult to connect, but trial and error can still be achieved.

The "positive" and "negative" wires must be connected to the battery. You can fix them with adhesive tape or a regular clothespin. You should not get carried away with such charging - there is a possibility that the phone battery will fail. The method is suitable to save some energy for a couple of calls.

Important! The batteries of many modern smartphones cannot be charged in this way! Fire hazard!

In the field from potatoes

You can charge your phone from raw potatoes, and this has long been proven by experimenters. The only problem is that it will take more than one kilogram of tuber to get enough current to charge. You need to take about 50 kg of potatoes, and in addition - 10 meters of metal wire.

To obtain the desired electric current, two metal plates will need to be inserted into each potato. Next, each of the tubers must be connected to the next by contact of the inserted plates. So the energy of the potatoes is “summed up” and you get a current comparable to 1 AA battery, somewhere around 1.5 V.

This method of charging the phone's battery is possible, although not suitable for emergency situations, and generally irrational.

When going on a visit, a long trip or a picnic, you need to think carefully about the way to recharge your phone. Buying a USB cable or "auto-charging" is not a problem. You can also take a fully charged PowerBank, laptop or tablet with you in order to replenish the energy of your smartphone through an adapter far from civilization and calmly make the necessary call.

In our age of modern technology, various gadgets have become familiar and convenient items, they are used by people of different professions and age categories. It often happens that charging a smartphone is not enough for a whole day for various reasons. Outside the home, for example, on a train or at a picnic, charging equipment becomes problematic.

Mobile phones are the most commonly used and it happens that charging in them ends at the most inopportune moment. How to find a way out of this situation, what kind of portable device to buy so that it operates reliably and smoothly?

The portable battery is a good alternative to conventional chargers that work only from the mains. Portable fixture does not need the mains during contact with a mobile phone. It only needs to be connected to the phone, and it will immediately begin the charging process.

Such devices are often called external batteries, for many they have already become indispensable helpers. The popularity of this portable item is explained quite simply - it is very convenient. There are several types of pocket chargers that are designed not only for smartphones, but also for laptops. Many of the readers will be interested to know about the types of chargers that can be used for mobile phones, as a rule, these are low power chargers.

• Solar charger - latest technology modernity, solar panels are used. It is enough to hold it in the sun or in the light during the daytime, and it is gaining charge, very convenient when traveling to hot countries.
• Devices that can be charged from the cigarette lighter in the car or from the USB port.
• There are portable chargers that run on conventional replaceable or rechargeable batteries.
• Contactless is a new revolutionary direction that is on the way of development. For charging, induction is used, so the technique is called inductive.

Modern wireless chargers include USB power bank. It is designed to extend the life of a mobile phone in conditions where it is not possible to use a conventional charger from the mains. We will look at this portable battery in more detail and find out how it works and what are its advantages.

Its appearance is distinguished by a stylish design, and its compact dimensions allow it to fit even in a jacket pocket or a small handbag. The portable charger looks very simple and stylish without frills - a case with two connectors.

Principle of operation

A small portable battery Power Bank, in addition to a stylish appearance, has a simple device. In order for it to be able to charge the phone, it must be connected for charging to any power source. This Can be done with a USB cable, which connects to a computer or a socket, in case of using a 220V adapter.

The charger has 2 interfaces, one of them is Micro USB, for supplying power to a portable device, as well as a USB output for charging gadgets. It is best to leave the portable battery on the network overnight, and it will receive the necessary power to charge the mobile phone at any time when it sits down. You can also connect other devices to it for charging, and an unlimited number of times, until the pocket charger not fully discharged.

Main advantages of Power Bank

Many of us have tried other portable chargers that did not work reliably and well. Unlike many other wireless devices, Power Bank is guaranteed to charge at least one of the most modern phones in a day. If you take a device powered by solar panels, then it is much more expensive and less efficient. It is best to buy a Power Bank, it will work more reliably, as it has already been tested by many consumers who were able to evaluate it and leave their positive feedback.

In 2014, studies were conducted among wireless chargers and they showed that Power Bank is the most efficient according to certain indicators.

• Stability of work and charging of the device
• Low percentage of energy loss
• Optimum battery capacity
• Charger price.

Those who have already purchased this charger and use it, according to statistics, are the least likely to return this device. In a compact case with a capacity of 2600 mah, the practicality and durability of use are perfectly combined with the low price of the device. After purchasing such a battery, you can forever forget about the problem of charging if you have it on hand outside the home.

Having such a device, you can charge your tablet or smartphone just on the street or in the subway, in public transport. It is ideal for active people who have to communicate a lot on the phone, as it will always come to the rescue in case of phone discharge. They can charge phones of any model, including the iPhone. tablets and navigators, cameras and photo cameras and many other types of digital technology.

Characteristics of Power Bank

Where to buy such a portable device?

Most often, a pocket battery can be buy in online stores, there is always a quality and reliable portable Power Bank in stock. On the websites of stores there are often interesting promotions and offers, the color and design of products may differ from those shown in the photo. This mobile charger will become an indispensable item for many people who make the most of their smartphones.

Of course, you can leave the charger in the outlet. This has been tested by millions of people. But so many myths have been created around this practice that it is very difficult to distinguish the right advice from the wrong ones. Let's look into the issue and find out the opinion of experts - after all, there is a risk in any case, even if in most cases it is not very big.

Electricity consumption

The charger really consumes electricity all the time, even without a phone. But don't try to reduce your energy bills by turning off charging. In passive mode, the device consumes a meager amount of energy; in a month it will wind up a few cents. If you do not turn off the charger from the outlet for a whole year, the consumption will be 1/3 kilowatt. With such savings, the family budget cannot be improved. But if you fundamentally do not want to pay for an overrun, even such an insignificant one, pull the charger out of the socket. This is not a question of money, but of desire.

Reduced service life

Another popular myth claims that the "lifetime" of the charger is limited. The longer the charger is connected to the outlet, the faster it will deteriorate.

There is some truth in this. The resource of the device is an average of 50,000 hours. This is about 2000 days, that is, almost 6 years. Therefore, the power supply can be connected to the network for as long as 6 years, and it will not be damaged.

Let's say you will constantly turn off the device. Then the service life will increase by several years. But does it make sense? For 5 years, the power supply will probably have to be replaced - it will be scratched, the connectors will loosen, maybe even break. Many people even change their smartphones after 3-4 years, because the models become obsolete.

But if you want the charger to work for 10-15 years, and you are sure that it will not break for other reasons, be sure to unplug it.

Fire hazard

There are sockets with USB ports. In appearance, this is an ordinary outlet with the usual round connectors, below which are rectangular ports - the same as on the chargers. And the “stuffing” of the outlet is the same as that of the charger. Not only wires are hidden under the cover, but also circuits. So, this is the same power supply, only stationary - mounted directly into the wall. And it is connected to the network - constantly. Nothing lights up. So you can not be afraid of a fire - the power supply will not flare up and set fire to the house.

But be careful if there are common risk factors in the house:

• old or faulty wiring;
• lack of automatic protection against short circuits and overloads.

In this case, anything can happen. But the problem is not in charging - a short circuit can occur anywhere in the circuit. To reduce the risk, do not leave connected appliances unattended - even the TV and refrigerator. And better - replace the wiring and install a reliable machine and do not worry about anything.

Another good reason to unplug your charger is a thunderstorm. But again, the problem is not in the power supply. Turn off all appliances from outlets, these are standard fire safety rules.

And of course, you can not leave a faulty power supply in the outlet. You don’t need to use it at all - you can lose your phone that way.

Children in the house

This is the only compelling reason to turn off the charger and put it away. You can put a plug on a regular outlet, but you can’t do this with a charger.

The power supply is dangerous even in a passive state. The baby is unlikely to stick a finger into the port - the connector is too narrow. But the child may well use some kind of metal object - a knitting needle, a nail, a narrow spoon handle. In addition, the cord is easy to break or bite through, even strong insulation is not designed for children's games.

The charger has an output current of up to 2 A, and a voltage of up to 5 volts. Such an injury is very painful, so do not take risks. Hide chargers in places where kids can't climb.

If there is a dog or cat in the house, the power supply should also be removed. Animals love to chew on wires. Maybe a short circuit will not happen, but you will definitely lose the charger.

But let's look at the problem from the other side. What happens if we turn off the device as soon as the phone is charged? We're just wasting a couple of seconds of our lives. If you can turn off charging, do so. It's safer that way.