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Any car owner has to deal with a battery malfunction sooner or later. Often the reason for the failure is the discharge of the battery. To restore the battery voltage, there are special devices, and they are called chargers and start-chargers. Every car owner definitely needs such a useful electrical appliance.

There is now a huge selection different devices to recharge the battery. To choose the most optimal model for yourself, you need to know how to choose the right one. Charger for car battery.

Charging and starting-charging devices are necessary for charging batteries of various capacities. What is the difference between these two devices? Starting and charging devices can not only recharge a dead battery, but also start the engine if necessary, for example, in the cold season. Battery chargers are for recharging purposes only and cannot assist in starting the engine. They differ from each other in current strength and voltage.

Why you need a charger

A standard problem that any car owner has encountered at least once in a cold, long, gloomy dark snowy winter is a dead battery in a car. Most often, this situation appears if the battery power for some reason is not enough to turn the starter.

Often this circumstance is caused by the fact that the generator does not fully charge car battery due to the fact that more often you need to heat the interior of the car, turn on the parking lights, headlights and lighting. In addition, at temperatures below zero, the oil thickens, the return decreases. car battery, so the risk of discharging the battery at the most unnecessary moment becomes quite large. When the battery is more than 3 years old, the most reliable option to protect yourself from this is to purchase a battery charger.

Varieties of chargers

Let's warn the logical question of a motorist - why charge a car battery if the generator is working. Right. The generator is running. But, by applying an additional load to the onboard system, we forget that the generator cannot cope with all devices, and in this case, electricity starts to be taken from the battery. This leads to a gradual discharge of the battery.

It also happens that some people forget to turn off for the night, or even for the weekend, car acoustics or dimensions. And the next day the car won't start. This has happened to many. In this case, you will need a battery charger.

Knowing the information about the batteries that exist today will enable you to navigate the question of which device to choose for charging a car battery.

Alkaline batteries are lithium-ion (LiOn), nickel-metal hydride (NiMh) and nickel-cadmium (NiCd). The most unfortunate of these are the last batteries, because it requires a complete discharge of the battery before charging. The so-called “memory” effect makes it quite uncomfortable. Purchased alkaline battery needs three discharge/charge cycles.
Lead batteries are also called acid batteries. These batteries are pretty good at systematic recharging. They are advised to charge more often.

A single rule for any type of battery - battery must be fully charged, that is, to the "stop".

The main qualities of the charger

All battery chargers have single principle work: they must reduce the voltage in the network to the nominal value of the battery, then rectify the current and ensure the automation of battery charging. That is, ideally: the driver must secure the charging terminals, plug in the plug and go to sleep in good faith.

Battery charging methods:

Constant pressure. The disadvantages of this method include a very rapid charging process at first, and weak current at the end.
D.C. Charging is pretty fast, which is an advantage. The disadvantage is that this method, due to the specifics of the charger, leads to a rapid “aging” of the battery.
Combined. It is the most optimal, and by and large, all modern chargers work in this way.

The first thing to do before you go shopping for a battery charger is to carefully read the owner's manual for the onboard power supply and battery. After, already in the store, study the instructions for the tactical and technical parameters of the selected device.

Advice: with the rapid development of counterfeit products, especially from China, still pay attention to the domestic manufacturer. Here you will definitely win.

Make the choice of car charging with a certain current margin upwards so that the device does not work at maximum. Or the situation may change and you will need to recharge the battery with a higher capacity.

The choice of charging for the battery is best left on the automatic, which provides a combined charge. The choice of display method is up to you personally. Discrete (LEDs) is cheaper, but not as accurate, but sufficient for an ordinary motorist. Instrument indication more accurate and therefore more expensive. Surprisingly, the domestic manufacturer of car chargers produces very high-quality models, and they successfully compete with European counterparts.

The issue of choosing a charger must be approached thoroughly and scrupulously, that is, from studying the instruction manual and its characteristics. The device must be assembled at the factory, have instructions and clearly defined characteristics. In addition, the charger must necessarily comply with all fire and electrical safety regulations.

We advise you to purchase automatic car chargers, they provide the best combined charging effect. As such, there are no controls for the device, except for the potentiometer, which sets the initial current.

Selection and operation

The battery charger is not a toy. In urban driving conditions, as well as frequent traffic jams when car alternator does not give even half of the required current strength, the battery is often undercharged. To start a car, he starts it, but this is only in the summer or is still new, after a while the undercharging will progress. Therefore, periodically it will be useful to recharge the battery.

Which charger to buy? We will answer immediately, all Chinese car chargers, in which there are only light bulbs and no regulators are present, it is advisable not to buy! It is better in this case to buy the simplest one, but with an ammeter, 5 amperes is enough.

Charging a car battery

When is a car battery considered dead? For starters, if the voltage is 11 volts or less. The density is also low, or the "peephole" on the battery has turned white, the car has difficulty starting the engine, or headlights that run on battery power cause the voltage to drop almost instantly. These are the first urges to recharge.

Let's say that you have purchased a charger, at least with an ammeter. What current to set? Everyone advises 0.10 of capacity. But we would advise 0.05. For instance:

We have a 77 Ah battery;
77A / hx0.05 \u003d 3.85 Amperes.

That is, a battery with a capacity of 77 A. / h. recharge with a current of no more than four amperes. We set the voltage to no more than 15 V. As the battery is charged, the voltage will increase and the current will decrease. Charging with low currents is better than high currents, and if you are not in a hurry, then 2 A will be enough.

When is the battery fully charged? The battery is fully charged when the voltage at the terminals is 14-15 V., and the current from charging has decreased to 0.1-0.3 A. At the same time, the density of the electrolyte will show a value of 1.25 or greater.

It is also useful to periodically discharge the battery. As a load, you can choose a regular light bulb. When the voltage drops to 10 V., you can set it to charge.

How to choose starter chargers

For car owners in which it is not desirable to disconnect the battery from the mains, chargers are made. The specificity of these devices is the ability to recharge the battery without removing the battery from the car. But this device does not make it possible to start the engine immediately when it is only connected to the car network. Those who need a device that makes it possible not only to charge the battery, but also to start the car's engine immediately after connecting it to the car's network, can be advised to choose a start-charger.

Varieties of starting and charging devices

Conventionally, starting-charging devices for the battery are divided into three types, taking into account their capabilities:

Professional;
household;
Combined.

Household starting devices imply their use only in garage conditions. As a rule, these devices are designed to work with a 12-volt car network. There are also devices that work in the voltage range 6-12 Volts. Using these devices, you can charge the battery, as well as start not only the car engine, but also motorcycles, where the voltage of the on-board network is 6 volts.

Professional charge and start devices are designed for the operation of batteries, where the mains voltage has an indicator of both 12 and 24 Volts.

These devices are designed to start not only passenger cars, but also commercial ones, where the rated voltage of the network is 24 Volts. Sometimes you can find devices where the output voltage range is 6-24 Volts or even 6-36 Volts.

The original solution would be the purchase of combined start-up devices. If you look closely, this device is, by and large, an inverter welding unit, with the ability to adjust the switching of the output current, which is suitable for working with the on-board network and car battery. This multifunction device, but quite difficult in everyday use.

To begin with, what needs to be considered is the location of the machine at the time when it is not in operation. For those motorists who have a garage with electricity supplied to it, stationary devices are suitable. Modern starters are small, they won't take up much space in your garage, and they're always at hand if you need them.

If the car remains to "spend the night" somewhere in the parking lot, then it is advisable to choose an autonomous starting device. These devices equipped with a built-in battery, and this makes it possible to charge or start the engine without connecting it to the mains. But this device will require special care, due to the same installed battery.

Then you need to decide which type of launcher is best suited. If the device will be used only with cars, then household devices are quite suitable.

The owners of commercial vehicles should already pay attention to professional devices. For owners of cars who often work in the garage, and at the same time use a welding machine, it is better to pay attention to combined devices.

Selection by technical criteria

There are a number of factors to consider when choosing a battery charger. First of all, with what kind of battery this device will need to work. There are several types of batteries, and each type has features in charging.

Therefore, before you go shopping, you need to clarify exactly which battery is on the car. If this acid battery, then the starting device must be designed to work with this type of battery.

Further, it is necessary to take into account what output voltage the starting device must have. If for operation only with a passenger car, then 12 volts is quite enough. But there is one interesting nuance here, starting devices can be kept operational for quite a long time. And it is likely that the car will change over time and a starting device with a nominal output of 24 Volts will be needed. That is, the best option there will be a purchase of a device that can be operated in the range of 6-24 volts, this will not be superfluous.

The next step, which affects the choice of starting device, is the current strength that the device will give out to start the engine.

To determine this indicator, you need to look technical specifications car, namely the amperage required to start the car.

If for some reason this is not possible, the approximate value of this indicator can be seen on the battery that is on the car.

For example, if the battery indicates that its capacity is 60 A / h, then the starting device must be selected with the same output current. But again, you need to take into account the fact that the car can change and this value on the car will be greater and the starting device with a nominal value of 60 A. / h. can no longer start the engine.

Therefore, it is recommended that when buying a starting-charging device, this factor should also be taken into account, since the purchased device, which always works at the maximum value, will fail much faster due to this operation. Therefore, the current strength of the selected device during startup must be higher than necessary.

In addition to the current strength for starting, you need to consider and device current needed to charge the battery. If the output current in charging mode is less than what is needed for the battery, then this can lead to rapid battery shedding due to constant undercharging.

Choosing a starting device for charging current is quite simple. Since the optimal current strength for recharging the battery is 10% of the total battery power. That is, when the battery capacity is 60 A / h, then the current required at the output must be 6.0 Amperes. And again, it must be borne in mind that the device should not work at maximum limits, it needs a certain margin.

Selection by equipment

Then, when the question technical specifications mentioned above, it was decided that attention should be paid to the equipment of the ZPU.

First of all, you need carry out a visual inspection of the device. The case of the starting device must be securely fixed, the operation of the switches and toggle switches should not cause any doubts, everything must be carefully fixed.

You can ask a consultant for a quality certificate, find out the warranty periods for this device. Since there is a high probability of buying a product of poor quality.

Then, choosing a starting device, you need to get acquainted with the technical equipment. The more additional functions the device has and various means of protection, the better, of course. Since no one is immune from the fact that they accidentally mix up the terminals while connecting the device to the car, which will certainly lead to a breakdown of the car's on-board network.

Spend visual inspection of clamps and cables, they are also popularly called "crocodiles", is also an indispensable condition. The cross section of the wires must be of high quality. This is important, because during the start of the motor, the wires transmit a large rated current. And if the cross section of the wires is of poor quality, then they will simply melt and they will need to be replaced.

The clamps on the wires must be made of copper with a thickness of 3 millimeters or more. If the thickness of the clamps is less, then there is a high probability of their burning in the areas of contact with the terminals.

You also need to check the pressure of the springs that are on the "crocodiles". They must have sufficient force to otherwise contact with the terminals will be weakened, this will lead to burning of the clamps and loss of current.

It should also be noted that the more the starting device for the machine is equipped with additional features to regulate voltage and current, the better.

The same applies to to operating mode indicators and to additional equipment with sensors that show the rated current, output voltage.

Summing up, we can summarize that both battery chargers have the right to exist, they can be used without problems to recharge batteries, both domestic and foreign, there is only one small nuance - the charger-starter must be used with terminals disconnected from the on-board network. In addition, a battery charger must be of high quality, no matter what type of device it belongs to.

And finally… Before using the battery charger, read the user manual, make sure the charger matches your battery. The correct and high-quality selected charger will save you from many problems, significantly extend the battery life, saving your money.

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 needs to be charged, the choice best model continue with other features.

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 completely 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 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, you can restore the capacity of car batteries various types- from gel to acid-lead.

In this case, more than 4 modes are used, as in less functional model C7, and six:

To charge one conventional battery with a starting current of 7A;
To increase the capacity of gel-type batteries or any batteries in winter (current 7 A);
Battery recovery after complete discharge (current 1.5 A);
Maintaining battery power during battery replacement;
Charging batteries for light trucks;
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 - 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 settings:

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.

Read also:

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 incorrect 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 settings:

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.

Watch the video how to choose the best power bank:

How to choose a power bank? Main criteria

So what characteristics should this device fulfill in order to satisfy the user's desire and charge devices quickly, and most importantly, several times? Indeed, the market is simply crammed with this product. Almost every electronics manufacturer boasts a large assortment of such a position as a power bank.

Here are the main criteria by which you need to choose a portable battery.

Battery capacity

The most important thing when choosing is the battery capacity. All manufacturers try to encourage the user to buy goods from them. Therefore, in the description they put 5000 mAh, 10000 mAh, 20000 mAh ...

But not all of them mention that the entire charge well, no way will not be able to be transmitted to the gadget. As a rule, only 50% -60% will go to recharging the device being charged. Everything else is a waste:

from the power bank battery itself
per USB cable transfer
for transmission to the device itself
plus everything, losses on the own power supply of microcircuits

It's all physics, I'm not strong in it, but a fact is a fact. First of all, when buying, pay attention to the capacity. From it we calculate 60% and get the exact number of charge without loss, which will go into the device itself.

Do not be fooled when buying low price and a large number of milliamp hours. Such gadgets are quite mediocre. Remember, a good power bank with 20000 mAh should not cost less than 2000-2500 thousand rubles.

Current strength

It depends on the strength of the current how long the wireless charger will charge your gadget. Typically, smartphones need 1 amp to charge, and tablets 2.

Weight and size

Why is this an important selection criterion? It's simple portable charger must be:

compact
not too heavy
and have a comfortable design (the thinner the better)

After all, why are you buying it? To take with you on a hike, on a trip, on a picnic, to the country house and so on. In general, in the place where there is no way to charge from the outlet.

Of course, the power bank should be small. Who wants to carry a stone weighing several hundred grams in their bag? But there are two sides of the coin here. The smaller the device you purchase, the less capacity it has.

We need to look for the golden mean. Moreover, manufacturers take into account such parameters and do everything possible to combine high performance and compactness in one device.

Number of USB connectors

Imagine that you went on a camping trip with your friend. So you sat down to eat, relax, go to the social. network or watch a video clip ... But bad luck, as luck would have it, the batteries on your smartphones are empty. And then you remember that you have a portable battery!

You take it out of your bag with a satisfied look and put your gadget on recharging. Your friend certainly feels left out. Well, right, you had to think in advance and buy yourself such a device ...

Of course, you are a kind person and don’t do that, but just share a second usb port with a friend. Not for nothing that many models are equipped with them. By the way, two manufacturers are not limited. You can often find more.

Battery type

The battery itself in the device may be ( click to open description):

Removable battery

Some devices have a removable battery feature. That is, batteries that change as needed. Thus, you get yourself a case of a portable device, and you can always replace the battery yourself.

The advantage of such models is that they will last much longer. Over time, any power bank wears out and its charge becomes less and less. In the case of this version of the device, you can always replace the battery with a new one and, voila, you have a brand new device.

But there are also disadvantages. Such a power bank operates on a small current strength, and this increases the charge time.

Availability of the indicator

In addition, you can find a light indicator on the device. Which indicates how much charge is left. You can also find a device that has a display.

Buyers note that it is much more convenient to see the percentage charge on the display than the indicator lights. But there is also a minus. The screen also consumes some of the energy that could go into the gadget.

Automatic shutdown

One of the important functions of the power bank is automatic shutdown. It protects against short circuits as well as power surges that can damage devices being charged.

In addition, this feature prevents wasted energy. For example, you can charge your gadgets overnight and not worry about waking up after a while and disconnecting the battery.

Additional features and accessories

For example, for hiking, you can purchase a power bank with a flashlight and a hand warmer. Some models are even equipped with a Wi-Fi connection and an input for a flash drive. In short, what they just don’t come up with and as soon as manufacturers don’t decorate the device.

You can also pick up an adapter for charging it and a protective case for your external battery. Mostly silicone cases, they will protect the device from dirt, dust and possible water ingress. The adapter will help you charge the power bank 2 times faster.

Which brand to choose an external battery?

There are a LOT of companies producing these devices. Among them there are both popular brands and unknown ones. Basically, all devices are made in China. For this reason, I see the point in ordering the device there.

Firstly, you do not overpay extra money
Secondly, delivery to Russia and the CIS is mostly free

At the exit, we get a device from the same China, but much cheaper than in a city store. Of course, there is also a minus, since you will have to wait for a parcel for about a month. But, for example, it does not scare me at all. In any case, in terms of money, you remain in the black. And if, then the purchase will become even more profitable.

I picked up several power bank models from Chinese marketplaces such as GearBest and Aliexpress. I will also single out a couple of well-known companies whose devices are most popular around the world. Here are the brands that we will cover in this article:

Samsung- Korean company known all over the world
Xiaomi- popular Chinese brand
Canyon is a Dutch electronics company.
Baseus is a young Chinese company
USAMS- another Chinese brand that produces electronics and accessories
Yoobao– high-tech electronics from China

Canyon CNE-CPB130DG one of the best portable chargers

Please note that the model is equipped with a light indicator and two USB ports, which allows you to charge two devices at the same time.

VIEW FEATURES

Capacity: 13000 mAh
Current: 2.0 A
Voltage: 5V
Battery type: lithium-ion
Weight: 259g
Size (mm): 62 x 142 x 23
Equipment: device, usb cable, user guide
Additional features: LED indicator, 2 USB ports
Country of origin: China

Samsung EB-P3000C external compact battery

A fairly compact and lightweight power bank, but at the same time it is not inferior in its power to charge a smartphone or tablet. Has one USB port. The warranty when buying in the original store will be 6 months.

SHOW FEATURES

Capacity: 10000mAh
Current: 2.0 A
Voltage: 5V
Battery type: lithium-ion
Weight: 240 g
Size (mm): 71 x 147.5 x 15
Package contents: device, usb cable (with microUSB/Type-C), user manual
Additional functions: mode fast charging

Original Xiaomi PLM06ZM with good power

The original of the well-known and quite popular Chinese by XIAOMI. The power bank has two USB output ports and one micro USB input for charging the device itself. As well as indicator lights on the battery power status. Real power guaranteed at 14000mAh.

SHOW FEATURES

Capacity: 20000 mAh
Current: 2.4 A, 2 A, 1.5 A
Voltage: 5.1V, 9V, 12V
Battery type: lithium polymer
Weight: 328 g
Size (cm): 13.55 x 6.76 x 2.39
Package contents: device, usb cable
Additional functions: fast charging, supports small current, so it is easy to charge bluetooth headset, earphones, smart bracelet and other small things

USAMS mini compact portable battery

Small and compact, yet powerful. Able to charge two gadgets at the same time. For lovers of the classics, the device is available in both white and black. There is also a model with or without a display to choose from.

Specifications

A type: Emergency / portable
Brand: USAMS
output interface: 2xUSB
USAMS Model: US-CD01
Output voltage : 5V/2A
Fast charge support: Missing
Battery capacity (mAh): 9001-10000mAh
Quality certification: European Certificate of Conformity (CE), RoHS, FCC
Battery type: Lithium polymer battery
Supports solar power: Not
input interface: Micro USB
Is a LED backlight: Not
The size: 93.5*64.2*23.5
Weight: 190g
net weight: 190G
color: Black, White
Capacity: 10000 mAh
Feature 1: Fast Charging
Feature 2: Universal for Samsung, Huawei, LG, Oneplus and so on
Feature 3: Portable for xiaomi mi power, for android mobile power bank
Features 4: Generally for iphone X 5 6 7 8 &Plus power bank
Features 5: Lithium Batteries
Feature 6: LED power indicator
output/input: 5V/2A
material: ABS fireproof
type 1: US-CD66, PB9
type 2: US-CD70, PB10

baseus super slim power bank

The thickness of the device is only 15 mm, which immediately indicates that the type of battery is polymer. This means that the performance of such a device is much greater, but the charging time is also increased. Black or white design to choose from. The actual charge capacity is approximately 7000-9000 mAh.

Any person at least once in their life has encountered an untimely discharged battery of an urgently needed electronic device, and for many of us such a nuisance catches up regularly.

The way to solve the problem is simple - you just have to get a compact external battery, recharge it in a timely manner and do not forget at home when going on business. We offer you a rating of the best external batteries in 2018, based on reviews from experts and ordinary buyers. Just do not forget - to choose the best external battery, you need to realistically assess your needs and choose a device of optimal capacity. As a first approximation, its value should be twice as high as the corresponding battery indicator of the gadget, which is supposed to be charged most often.

External battery capacity - what does it mean

Indicating the nameplate capacity for their external batteries, manufacturers write the truth, but not all. For example, those 13,000 mAh claimed for the last participant in our review (Canyon CNE-CPB130), its built-in battery really has. Only now it will be possible to fully charge a smartphone with a 4,000 mAh battery with such a power bank only twice. The fact is that the nominal capacity here means the energy reserve accumulated by the battery of the device at its operating voltage. In this case, it is approximately equal to 3.7 volts, which is significantly lower than the value determined by the USB specification. And insofar as it is necessary to charge mobile equipment through this particular interface, the internal voltage is converted to the standard 5 V with a proportional decrease in the available capacity. In addition, part of the energy is spent on the operation of the corresponding electronic circuit. For reference: at present, external batteries use lithium-ion (3.6-3.7 V) or lithium-polymer (3.85 V) batteries, and the efficiency of the converters ranges from 0.9 to 0.95.

Thus, knowing the “capacity” of the batteries of a power bank and a smartphone, it is easy to calculate how many times you can charge the first device with the second. For this, the passport value of the capacitance external battery you need to multiply by the operating voltage of his own battery (if the type is unknown, we take 3.6 V), divide by 5 volts USB interface, and the result is multiplied by the efficiency (laid by 0.9). As a result, we get the useful capacity of the device, which can be used when charging.

To complete our example, we have (13000 * 3.7 / 5) * 0.9 = 8658 mAh, which is enough for two full charges, say Xiaomi Redmi 4X with its 4,100 mAh battery. And a little more will remain "in reserve".