Quick tooth. Thing of the day: external battery with wireless charging function. Type of connection to the power supply

How to choose it and what you need to know?

When choosing a charger, first of all, you need to know the type of battery installed in the car, because some of them require personal attention and approach.

For example, this applies to lead batteries - they require the use of special chargers.

For most batteries - almost any universal device is suitable.

Although modern devices allow you to simultaneously charge almost any battery using several values ​​​​of output power and charging current.

Features of the choice of charging for the battery

Having decided on the type of battery that requires charging, the choice of the best model continues according to other characteristics.

It is advisable to give preference to compact portable models, which are more convenient and easier to handle.

And, when choosing between equipment powered by a cigarette lighter and a single-phase network, you should pay attention to the second option - chargers that require standard 220V.

And, as a rule, they provide at first half of the battery capacity, gradually reducing the power until the final charge.

To protect the batteries from overcharging, each device is equipped with a special protection that automatically turns it off when the battery is 100% charged.

Among other parameters that need to be considered when choosing a charger, it should be noted:

• the capacity of the batteries to be charged. For passenger cars, it is, on average, from 40 to 62 Ah, for motorcycles - up to 20 Ah, for minibuses - up to 120–160 Ah;
• charging current. 6 A suitable for batteries up to 60-70 Ah. 12 and 18 A - the best option for minibuses and SUVs;
• price category. The cost of most models is at the level of 2000-3 thousand rubles. More functional equipment will cost 5 thousand or more.

The brand of the charger also matters. German-made chargers are considered the most reliable and efficient devices. While Korean models are distinguished by an affordable price with fairly good performance.

Read also:

Popular charger models

Almost any modern charger can restore the battery of cars and small commercial vehicles within 6-10 hours.

The same devices allow you to restore the performance of a fully discharged battery. At the same time, the recovery time of the battery capacity with a zero charge is calculated taking into account 10–15% of the reserve.

For example, a device with a current of 6 A will charge a 60 Ah battery not in 10, but in 11-12 hours.

If the battery is charged by a third (it is from this moment it is recommended to start charging) - respectively, in 7-8 hours.

If you want to reduce this time, you should buy a more powerful device. At the same time, choosing a device with automatic floating adjustment of parameters will increase the service life of the batteries. Setting the charging current to a lower value will increase the charging time, but also improve recovery. If the charger does not have an automatic adjustment function, the user will have to monitor the battery on their own.

Bosch C3 - a simple model for passenger cars

Car charger Bosch C3, manufactured by a well-known German concern, is the best option for most batteries - from lead-acid to gel.

It has 4 fully automated charging modes, which make it possible to restore batteries of various capacities (up to 140 Ah) at positive and negative temperatures.

And high power guarantee correct and fast charging.

And security systems can warn the user if the battery is connected incorrectly, preventing a short circuit.

Equipment characteristics:

• operating voltage: 220V (50 Hz);
• output voltage: 6V (for charging batteries up to 14 Ah) and 12V (up to 120 Ah);
• charging current: 0.8 A and 3.8 A;
• type of rechargeable batteries: gel (WET, AGM, GEL, VRLA) and lead-acid;
• model cost: from 2300 rubles.

Rice. 1. Bosch C3 is a compact and inexpensive, but not very powerful device.

Bosch C7 - maximum functionality

Thanks to the use of the Bosch C7 charger, it is possible to restore the capacity of various types of car batteries - from gel to lead-acid.

In this case, not 4 modes are used, as in the less functional C7 model, but six:

1. To charge one conventional battery with a starting current of 7A;
2. To increase the capacity of gel-type batteries or any batteries in winter (current 7 A);
3. Battery recovery after complete discharge (current 1.5 A);
4. Maintaining battery power during battery replacement;
5. Charging batteries for light trucks;
6. Increasing the capacity of truck batteries in conditions of negative temperatures.

Technical specifications:

• voltage: working - 220V, output - 12V and 24V;
• current strength: 3.5A and 7 A;
• battery charging: up to 230 Ah;
• battery compatibility: gel and lead;
• cost: from 6500 rubles.

Rice. 2. Bosch C7 is a universal device for any battery.

Tesla ZU-40080 - an inexpensive device for truck batteries

Charging ZU-40080 of the Tesla brand has relatively large dimensions and provides the restoration of lead-acid batteries of various equipment - from conventional vehicles to boats, motorcycles and even lawn mowers.

The capacity of the rechargeable battery can be in the range of 20-180 Ah, and the charging current reaches 8 A, which allows the device to work with batteries, minibuses and trucks.

For ease of use, the device is equipped with protection systems against incorrect connection, overheating and short circuits, charging wires 1.4 and 1.7 meters long.

For wall mounting, the device has special mounts on a shock-resistant and waterproof case.

And the main advantages of the equipment include its minimum price among similar devices.

Main parameters:

• voltage value: input - 220-240V (50 Hz), output - 6/12V;
• charging current: 5.6 A (nominal) and 8 A (maximum);
• maximum capacity of rechargeable batteries: 180 Ah;
• battery type: lead-acid;
• device price: from 1500 rubles.

Rice. 3. Tesla brand device is versatile, powerful and affordable.

Deca SM 1270 - compact and versatile

A small device from the Italian brand Deca will restore the batteries of an ordinary car within only 8-10 hours, depending on the capacity.

And the ability to charge the battery up to 225 Ah allows you to use the device also for working with trucks.

Functionality, expressed in the presence of three operating modes, and the safety of charging is combined with versatility (the ability to charge batteries of any type).

And the only negative can be called only a high price, although it is quite consistent with the possibilities.

Model characteristics:

• operating voltage: 220–240V;
• parameters of connected equipment: 12V, 15–225 Ah;
• charging current: 7 A;
• accumulators: AGM, lead and gel;
• cost: from 4500 rubles.

Rice. 4. Model SM 1270 - low price and size combined with high functionality.

Lavita LA 192309 - a compact set for charging conventional cars

Another charger, LAVITA LA 192309, has a low price and is a whole set of equipment for the recovery of any lead-acid batteries.

The disadvantages of the device include the need to manually switch the charge power, a weak charging current and the inability to work with batteries with a capacity of more than 80 Ah.

The pluses are a shock-resistant, fire-resistant and at the same time lightweight plastic case, low price and full protection against all unforeseen situations - from incorrect connections, short circuits, overheating and overcharging.

Device parameters:

• voltage: 220V;
• device output voltage: 6V and 12V;
• charge strength: 3.52 A;
• battery specifications: 12-80 Ah, lead-acid;
• price: from 1500 rubles.

Rice. 5. Easy to use and carry device LAVITA LA 192309.

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Pulso BC-40100 - a device for charging batteries in the cold

The battery charger is the best option for use in low temperatures.

The charger, made of high quality metal and plastic, is distinguished by its affordable cost, relatively small size, protection against overheating, overcharging and improper connection of batteries.

A high charging current of 10A and compatibility with batteries with a capacity of 20-200Ah make it possible to charge the batteries of cars, trucks, lawn mowers, SUVs and motorcycles.

Characteristics of Pulso BC-40100:

• network voltage: 220V;
• output voltage: 6 and 12V;
• charging current: 10 A;
• parameters of rechargeable batteries: lead-acid, capacity 20–200 Ah;
• charger cost: from 2300 rubles.

Rice. 6. Pulso BC-40100 is a good option for charging any battery at any temperature.

AIDA 8 super - lightweight universal device

Aida 8 Super automatic charger is suitable for restoring the capacity and performance of batteries of any type installed on trucks and cars, motorcycles and buses.

The device charges the batteries in 3 modes (including battery storage during the inter-operational period) and works even with equipment that is discharged to zero.

This provides full protection against overcharging and overheating. The model weighs no more than 600 grams and is placed in a small carrying bag.

Hades parameters - 8:

• mains voltage: 150–240V (50 Hz);
• charge current: 4 and 8 A;
• supply voltage: up to 13V;
• batteries: 40–160 Ah, AGM, lead, gel;
• prices: from 2 thousand rubles.

Rice. 7. Aida 8 Super - a combination of small size and serious features.

AIDA 10s - charging and storing powerful batteries

Using the AIDAm-10S model charger, you can restore the batteries of any vehicle, regardless of their charge level and ambient temperature.

To start the batteries, a special pre-start mode with a current of 10 Amperes is used.

The device is also used to store batteries when they are not in use, which allows them to be stored for a certain period.

The advantages of the model are its low price and small size, protection against incorrect connection and the ability to be used as a power supply.

Charger parameters:

• permissible mains voltage: 150–240V;
• charging currents: 1, 5 and 10 A;
• output voltage: 12V;
• battery type: gel, lead, AGM, 4–180 Ah;
• cost: from 2300 rubles.

Rice. 8. Aida 10C is the best option for storing batteries for cars and trucks.

AIDA 11 - average price and decent parameters

Charging Aida 11 works in manual and automatic mode, and also allows desulfation - restoration of battery performance.

The model can be used to charge batteries with a capacity of up to 180 Ah, that is, devices installed on ordinary cars, SUVs, buses and trucks.

The equipment has 4 degrees of protection, average cost and small dimensions.

And among its advantages, one can name the high value of the charging current, thanks to which even a completely discharged 60 Ah car battery is charged in just 7 hours.

Main parameters:

• allowable voltage: output - from 160V to 240V, output - 12V;
• network frequency: 50–60 Hz;
• charging current - from 0 to 10 A;
• type of rechargeable batteries: lead, gel and AGM;
• the cost of the device: from 2500 rubles.

Rice. 9. Domestic model with good parameters.

Simple and convenient charging AUTO WELLE AW05-1208

Charging brand AUTO WELLE, as well as all other models in the review, has full protection against any errors and malfunctions.

And an additional advantage is also moisture protection level IP 65.

Automation of the device operation is ensured by a built-in processor, and versatility is ensured by the presence of several operating modes and the ability to charge batteries of any type with a capacity of up to 160 Ah.

Charging features:

• charging current: 2 and 8 A;
• rechargeable batteries: lead-acid, AGM and gel, 4-160 Ah;
• voltage: 220V, output - 6V and 12V;
• price: from 2 thousand rubles.

Rice. 10. Model AW05-1208 - user-friendly interface and small size.

Today, worldwide, lithium-ion batteries are the most widely used than any other: in smartphones and laptops, in cameras and camcorders, in portable players and in electric cars, batteries based on lithium compounds can be found everywhere. And such a wide popularity fell on lithium batteries is by no means accidental.

Lithium-ion batteries are more compact, and by weight they are 4 times lighter than lead counterparts of a similar capacity, while they easily take the form of the device for which they are made. Many hobbyists even assemble high capacity lithium-ion battery packs for their own needs from small standard 18650 cells readily available on the market. And the question regarding the quality of operation of such batteries, of course, is by no means the last.

In particular, the consumer always needs to find a charger for his battery. This can be a ready-made device with all the necessary options that a person simply buys, or, if desired, a charger can be completely developed and made by oneself.

One way or another, it is necessary to determine the parameters of such a charger from the very beginning, it is not enough just to know that the nominal voltage for one element is 3.7 volts, something else must be provided for. Just what you should pay attention to, and how to calculate the parameters of a charger for a lithium-ion battery, will be discussed in our article.

Voltage control, the need for cell balancing

Initially, it is necessary to understand that lithium batteries, both during charging and during discharging, cannot be overloaded, because due to overheating, such a battery will not only quickly lose its original capacity, but may even ignite. To protect against this trouble, charge-discharge controller boards are built into the cases of lithium batteries even at the stage of their production, designed to protect the batteries from exceeding the maximum allowable voltage during charging.

These controllers can optionally control the temperature of the battery, opening the charge or discharge circuit in case of overheating or short circuit, as well as limiting the depth of discharge and the current consumption of the load fed by the battery. Meanwhile, not all manufacturers of lithium batteries build such protection into their products, some, seeking to save money, do not put it on at all, exposing users to danger.

In addition, there is a feature of sequential charging of lithium batteries: it is necessary to use auxiliary balancing circuits so that if one of the batteries of the battery (collected from series-connected cells) slightly differs in capacity so that it is fully charged first in the battery, then it must be from the circuit being charged (batteries ) temporarily exclude and continue charging the remaining cells already without it. This prevents overcharging of some and undercharging of other cells of the "serial" battery.

Charger options

So, if the safety aspects are understood, if the balancing circuits (if necessary) are installed on the batteries, then it remains only to determine the current parameters of the charger. To charge a lithium battery with a nominal voltage of 3.7 volts, it is necessary to apply a voltage of 4.2 volts to its terminals so as not to wait indefinitely for the end of the charging process.

As for the charging current, manufacturers recommend charging a lithium battery with an average current numerically equal to no more than 0.1 of the battery capacity, this mode will be exactly safe, the battery will not overheat when charging, and will retain its life for a long time if it is always handled with the same care .

For example, one battery with a capacity of 2600 mAh is recommended to be charged with an average current of 260 mA. If the battery contains several such cells in parallel, then the current is multiplied by the number of cells.

For example: you need to charge 4 18650 lithium batteries in parallel, bring their voltage from 3.0 volts to 3.7 volts, while each of them says that the capacity is 2600 mAh. So the charger should be able to provide an average current of 4 * 260mA = 1040 mA at a voltage of 4.2 volts.

What does average current mean? This means that the maximum current should be about twice as much - 520 mA per cell, or a total of 2080 mA for four cells. During charging, the current will gradually decrease to almost zero as the battery voltage rises from 3.0 to 3.7 volts, and its average value will be about 260 mA per cell. These are almost ideal conditions. The maximum current that our charger should be able to give is 2.08 A.

Some more advanced chargers are able to control the charging process, initially supplying much more current, but at the same time preventing overheating of the cells. So the charging process will turn out to be faster, but at the same time it remains basically safe.

Consider, however, how long the batteries in our example will take to fully charge with an average current of 260 mA per cell. We have 4 lithium cells of 2600 mAh each, which means their total capacity is 10400 mAh.

If we assume that they are discharged to an acceptable minimum (about 3 volts), and they need to be fully charged (up to about 3.7 volts), then with an average total current of 1.04 A (4 by 260 mA) they will be charged for hours, and at first the current will be 2.08 A, and will slowly decrease as it charges to almost zero (in fact, to the self-discharge current of the batteries).

In what situations can you safely charge your gadget through a non-original charger, and when is it better not to risk it?

Now almost every house has several chargers: for a smartphone, tablet, player and other gadgets. In this regard, many users have a question: is it possible to use non-native charging? What happens if you use charging from a tablet for a smartphone? Why are Chinese analogues dangerous?

Our review article will try to answer all questions and dispel popular myths.

Types of chargers and connectors

First you need to figure out what types of chargers for smartphones and tablets we most often encounter in everyday life:

• microUSB. Perhaps the most common connector used to power mobile devices. It is used by various manufacturers on smartphones and tablets running Android and Windows Phone software platforms.
• Lightning. A special 8-pin connector used by Apple on the iPhone, iPad Pro, iPad Mini, iPod Nano, and iPod Touch lines.
• USB Type-C. The symmetrical connector allows you not to think about which side of the plug or cable you need to insert the cord into the connector, and makes our life a little easier. In addition, USB Type-C provides higher data transfer and the ability to transfer power up to 100W, which makes it convenient not only for smartphones and tablets, but also for larger devices such as laptops or monitors. USB Type-C is already starting to “come into fashion”, and more and more mobile manufacturers are equipping gadgets with a new connector instead of microUSB. Details.
• Notebooks. There is no single standard for a laptop charger yet (perhaps in the future it will be the universal USB Type-C), so different models use different connectors depending on the manufacturer.

Most mobile gadgets use the same connectors, most often they are MicroUSB and USB Type-C when it comes to Android smartphones and tablets. Sometimes situations arise when the necessary charger is simply not at hand, but using a non-native power supply is not always safe.

Charger Specifications

First you need to determine the main characteristics of any charging for a smartphone - we are talking about a power supply unit (adapter) that is plugged into a power outlet. Depending on the capacity of the battery, the type of device and other factors, charging blocks differ in their characteristics, which we should have studied in physics lessons.

Samsung tablet charger 2.0A

Each normal power adapter has a specific marking indicating the technical characteristics. It will come in handy if you have to constantly power your smartphone from a non-native / non-original charger.

Once again, we will make a reservation: if we are talking about isolated cases of the use of non-original devices, then nothing terrible will happen. If you are going to use them constantly, be sure to study the article.

On power supplies, manufacturers must leave their logo, put various markers, certification and GOST badges, and also indicate really useful information:

• Electric current voltage range: typically 100-240V (volts).
• Frequency: on all our units 50-60Hz.
• Output (output) - the main characteristic of the power adapter, usually looks like this (5.0V - 1.0A) or like this (5.0V - 2.0A).

Let's dwell on the last characteristic in more detail. 5.0V is a standard indicator, but the value of the current strength varies depending on the adapter and the gadget that is being charged by it. As a rule, the current strength of the power supplies is 1.0A (for smartphones) or 2.0A (for tablets). There are cases when the current strength is, for example, 0.85A, 2.1A, 1.5A.

Charger for Sony smartphone at 0.85A (850mA)

Non-original chargers

Charger with more current. If the current strength exceeds the figure consumed by your gadget, nothing bad should happen. The fact is that the lithium-ion battery is equipped with a special protective board that prevents overcharging / overdischarging, and sometimes even a short circuit. Moreover, modern smartphones are equipped with power controllers that do not allow them to accept more current than a given battery needs.

Huawei smartphone charger 1.0A

Despite this protection, charging the gadget from a power supply with a higher current strength (A) is undesirable, since experience and forums say that the phone gets very hot and the battery fails faster.

Charger with less current. Experts do not recommend using a weaker charge. In this case, the battery will require more power, which the charger cannot provide. This can lead to overheating of both the unit and the gadget, and sometimes even to a short circuit and fire.

ASUS Nexus 7 tablet charger 2.0A

Charging from another manufacturer. Many users complain that when using a Chinese charger with similar current and voltage, the process takes longer than it takes when using the original charger.

Charger for iPhone 5/5S at 1.0A

The problem is that different mobile manufacturers do not have a generally accepted standard for coding the load capacity of the power supply. Because of this, the gadget of one brand does not always “understand” the charging made at the factory of another company. In this case, the charging process is carried out in a safe mode of 500 mA (0.5A) and much slower, which can also lead to overheating. There are situations when the device does not recognize the cable connected to it as charging at all.

Conclusion. We recommend using a native charger or one officially compatible with it from a well-known manufacturer (you can choose on Yandex.Market). Of course, in unforeseen situations, you can make an exception, but you should not do it regularly. Also read and take note

Power banks and wireless chargers are incredibly convenient things. The first ones can power your phone when the battery is low and there is no outlet at hand. And the latter eliminate the need to connect any cables. After all, just putting the phone on a flat surface is much faster than looking for a USB port.

BricksPower is a simple but very useful device that can charge your smartphone on the go without the need for wires. You can safely use your phone during the process.

BricksPower attaches to the back of your smartphone with a magnetic grip. It can be used with all phones that support wireless power transmission. If your gadget is not one of them, then it is always possible to connect the device through a regular cord.

The BricksPower battery detaches easily when not needed. After that, the device turns into a regular wireless charger. You can keep it on the table when you are not going anywhere and charge your gadgets. And when you're ready to hit the road, simply attach BricksPower to your smartphone for an extra 2,400 mAh. This is not very much, but BricksPower is much more compact and portable than large and bulky

In this article, we will talk about a fairly new technology - "Fast Smartphone Charging". All the advantages and disadvantages will be described, we will also try to figure out whether this development is necessary for the convenience of consumers.

Today is very difficult to imagine without a smartphone and other modern gadgets. Every day the market is replenished with new models that are much more modern and more powerful than their predecessors. Smartphone screens are getting bigger and brighter, processors are more productive and efficient, and RAM is growing. All this consumes a large amount of energy, and the more intense the use of the smartphone, the faster the battery is discharged. Now, only lithium batteries with a small capacity, but very reliable and durable, are mainly used. Manufacturers are fighting for their place in the market, so they are striving to reduce the charging time of the phone, to make their devices more autonomous.

What is fast charging?

Let's take a closer look at how the fast charging process itself takes place. If we take a regular charger and look at the marking numbers on the case, we will see 5V / 1A. The inscription means that this charger produces a maximum voltage of 5 volts and a current of 1 ampere. Fast charging is capable of delivering 5V/2A. This means that a smartphone with this function can be charged faster by about 40%.

A smart controller that provides processing of the incoming current is not only built into the memory, but also into the smartphone's processor itself. Fast charging often requires a cable with better bandwidth.

Is fast charging safe for a phone?

But consumers are not particularly concerned about how this technology is arranged there, one question is important to them - “Is fast charging harmful for themselves and for a smartphone”? No one can give a definite answer, but many studies have been conducted, the results of which indicate 100% safety.

Lithium-ion and lithium polymer batteries, in principle, there is no difference with what current strength and what voltage the process will take place. The most dangerous for integrity and service life is temperature. Conventional smartphone batteries are designed for 2000-3000 full discharge and charge cycles. If you allow the device to overheat, then this adversely affects the battery and significantly reduces its capacity, which means it reduces its operation time. The main thing that experts do not recommend doing is to purchase low-quality cheap memory.

Perhaps the most basic rules for the safe use of fast charging are:

• Do not leave an infected smartphone unattended for a long time;
• Do not cover your mobile device with pillows, blankets, or other fabrics;
• Do not overload the processor and RAM while charging;
• Do not use fast charging if there are cracks or other defects on the smartphone case or battery;
• Use only original charger and high quality cable.

A variety of smartphone fast charging technologies

1. Quick Charge from Qualcomm;
2. Pump Express from Mediatek;
3. VOOC Flash Charge.

The most unfamiliar for us was VOOC Flash Charge. It is less common on the market, but, according to world experts, it provides the most gentle smartphone charging. And it is also the fastest, but you can only use it with OPPO devices. It can fill a battery with a capacity of 2500-3000 amperes in twenty minutes. OPPO releases its own development called VOOK FLACH CHARGING, which surpasses many others. It has 5V/4.5v specifications. But regular batteries can't handle that much current, so OPPO introduced a branded battery that has 8 pins instead of 3.

Qualcomm is the industry leader

In general, the first fast charging was introduced by Qualcomm, called Quick Charge 1.0. It was first introduced in smartphones Samsung, Nexus, Nokia. Qualcomm's Quick Charge has taken over most of the storage market. It has been almost perfected in a few years. More than half of smartphone manufacturers cooperate with this company and actively use the technology in almost all their gadgets. Even Samsung, which has long been a leader in the smartphone market, with its own developments, often uses technologies from Qualcomm.

The first fast charger appeared in 2013 and with each release of subsequent versions, it has become smarter, faster and more reliable. The introduction of this technology into a smartphone occurs together with a chip, or through a separate microcircuit. A year later, the company introduced a more powerful and improved Quick charge 2.0, which is capable of charging a battery with a current of 3 amperes. This suggests reducing the time to full charge by 70%.

More recently, Qualcomm is releasing a new charger with Quick charge 3.0. No, it does not charge a smartphone with a current of 3 amperes, it selects the optimal current for faster charging of absolutely any phone. The 3rd generation technology from Qualcomm has been phenomenal as the developers have not tried to speed up charging, but have tried to reduce the amount of energy consumed, thereby preventing excess heat from being generated.

Then iKnow technology appeared. It unmistakably adjusted to any battery and any device. The smartphone “communicates” with the charger through it and finds the most optimal voltage. Now the company is preparing to release the smartest and fastest charging version 4.0. There are already several levels of security. Even a system will be implemented that will check the cable for damage.

The future of device charging

In conclusion, I would like to talk about the future of our gadgets and their nutrition. Of course, time does not stand still and technology is moving forward much faster than a person. In the near future, they are going to introduce graphene batteries, which will take a few minutes to fully charge. It is also quite likely that batteries will appear on radioactive elements. They do not need to be recharged at all, just after a couple of years it will be necessary to replace the old battery with a new one. How safe and effective technologies will be, we will figure it out only after they enter the market.