So you choose charger for phone. Two very important factorshelping to make right choice, This is a type of memory and the strength of its output current. Consider every factor in more detail.
Type of charger
What charger do you want to buy: Original, suitable analog or universal charger? Of course, many choose the original. In this case, you can not worry about the compatibility of the device with the phone, the characteristics of charging, the risks of the fire (cheap charging, bunches sold in the markets can lead to fatal overheating of the battery). But it happens that the original memory is too expensive or difficult to find in stores. Wire a high-quality analogue of the original network charger for the iPhone.
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analogs of the Charger for iPhone and Apad
The quality of the analog cannot be judged by the manufacturer. The inscription "Made in China" can be seen on both the original, because well-known brands in the PRC produce their phones, as well as components and accessories. A list of compatible phone models and specifications that repeat the characteristics of the original should be specified on a good analogue.
Most modern tablets and smartphones adopted a single standard of power connector - MicroUSB. Therefore, it is advantageous to choose universal chargers with microUSB, which can be connected to all your gadgets. One of them is a PARTNER network charger. Note that the output current of such a universal should not be below 2.1 A.
Output current
Why not below 2.1a? What is this parameter and what does it affect? If briefly and generalized, at the time of charging the gadget. On the output current device can be labeled as "output" or "output", the numbers indicated next to mean, which current is capable of transmitting the memory. To charge the smartphone, the current of at least 0.7 A. is usually necessary for the receptacle of the tablet battery - about 2 A.
If you connect the charger for the phone to the tablet, it will be very and very long charged. The memory for smartphones is designed for 1 A. If you connect the charger to 2.1 and to the smartphone? Phone from such charging can burn? No, smartphones are provided with a power controller, which does not take more than the smartphone is required. But the gadget will be charged faster.
In addition to network chargers, you can charge smartphones and via a USB port of a laptop. However, there is a chance that the gadget will break for a long time on charging. USB format is created at that time when the phones were not supposed to be connected to the computer, so USB ports are not designed for feeding third-party device. Through them will be charged with a current of only 500 mA (0.5a).
What to speed up the phone charging time, transfer it to the "Flight Mode" / "Airplane mode" / offline mode. In such conditions, all unnecessary applications and modules are disconnected. Smartphone charges at least 15% faster.
Modern car battery, subject to timely service, can live without any problems for 5-7 years. But no one is insured against situations in which the battery, having lost their abilities, simply refuses to work in normal mode. The reasons here can be as much as you like, ranging from long idle in the cold and, ending with malfunctions in the auto power system.
One of the ways to "revive" the battery is its charging, to carry out better after establishing and eliminating the cause of its discharge. To charge the battery, you can use the services of special services, and you can cope with this task and yourself. For this, of course, you must have a charger (memory).
Types of charger
If there is no memory for the battery in your arsenal, but there is a desire to purchase it, you should know which charging devices are, and which one is best for your needs.
Two main types of memory are available on sale:
- charging and Prepass;
- charging and launchers.
Charging and Preheaval Devices (ZPU)
This type of memory is designed exclusively for recharging the battery. Charging occurs by transmitting voltage and current of the desired value from the terminals of the device on the battery terminals. It can be carried out in three ways:
- direct current;
- constant voltage;
- combined (first by constant current, then by constant voltage).
The last way of charging is the most efficient, but for such a procedure requires a memory with the device. automatic switching modes.
Separately, the charging and premises are classified on:
- transformer;
- pulse.
The basis of the transformer RCP is a powerful and overall transformer. Such devices are distinguished by high reliability, but due to significant size and weight, are not very convenient to operate.
Pulse ZPUs are more compact. The principle of their work is to convert the current obtained from the consumer network, and increase its frequency at the output. A transformer is also used here, but its dimensions are very compact. In addition, pulsed zooms charge the battery much faster, operate in automatic mode, and may also have a number of additional functions. Most of them have a built-in logical controller controlling the charging process. The cost of such devices is much higher than the cost of transformer memory.
Charging and starting devices (CPU)
When the battery was discharged so that it is not able to provide a starter rotation to start the engine, will help the charging and starting device. Of course, if there is a socket. It is enough to connect the charging and starting device to the network, connect its terminals to the battery terminals, set the required current value, and the engine can be started. The charging and starting devices switched to the starting mode are carried out long-pulse flow of current on the aircraft chain of the car, thereby providing conditions for the successful start of the engine. The only condition is the battery of the car must be disconnected.
Additionally, the CPU can also be used as a conventional charger. Charging and starting devices can also be both transformer and pulse.
Based on practice, it is possible to say with confidence that it is preferable to have a charging and starting device at hand (in the garage), rather than just charger, and fully automated.
Basic criteria for selecting a charger
Deciding with the type of charger, it is time to move to the definition of its main operating parameters required for high-quality battery charging. There are only two criteria here:
- maximum current;
- maximum voltage.
Selection of the maximum current (nominal capacity of AKB)
Knowing the value of the nominal capacity of the battery, you can determine the amount of charge current required for it. For acid batteriesThe charging current is determined according to the following formula: I max ≥ 0.1 * C Mr., where C n is the rated power indicator of the battery. In other words, if the battery is installed in your car with a capacity of 55 Ah, then the selected memory must produce, at least 5.5 A. for alkaline batteries, the charging current must be somewhat higher. It is possible to determine it according to the following formula I MAX ≥ 0.25 * C.
To be able to most accurately select the desired value of the charge, it is necessary that a discrete or smooth adjustment is provided in the charger with a maximum step of 0.5 A.
Selection of memory for maximum voltage (Nominal voltage of AKB)
For most acid batteries (12-volt) The maximum voltage at the end of the charging should be 14.4-15 V (2.4-2.5 V per can). For a normal charging of such AKB, given the drop in voltage on terminals and conductors, the optimal charging voltage is considered to be 15.5 V.
To accurately determine the maximum charge voltage for lead-acid batteries, use the formula: U max ≥ U el * n, where U el is the final voltage on one element (bank), and N is the number of elements (cans).
For example, if in the passport data of the battery it is indicated that the maximum voltage of one charged element is 2.4 V, and the number of elements in the battery is 6, then the maximum charge voltage for the battery is 14.4 V.
For alkaline models, the maximum charging voltage is determined using the following formula: u max ≥ (2.1 * n) + UD, where n is the number of elements, and the UD is the so-called voltdobank - an additional increase in the voltage value of approximately 5 V for each 15 elements.
In order for the charger to meet the operational requirements of the AKB, it is necessary that it provides for the ability to adjust the output voltage in a step of no more than 0.1 V. For greater convenience and the exact setting is better to use the memory with a digital indicator (voltmeter).
Having determined the maximum charging current and voltage indicators for your battery, do not hurry to acquire the memory with such parameters. The fact is that the battery is only a separate element that over time can be replaced by a similar one, however with other characteristics. In addition, it is unlikely that someone all his life goes on the same car. It will be better if you buy a charger with current and voltage parameters exceeding the nominal, i.e. "With a stock." This solution will allow you to use it for an existing battery, and for its possible "successor" with higher operating performance.
1. Selects between the charging and charging and starting device, prefer the latter. So you will always be confident that having a socket in the garage, you can always run the engine without waiting until the memory charges the battery to the necessary state.
2. It should be purchased by a charger under a certain battery (car). Make a choice in favor of the device whose characteristics are 10% superior at the moment.
3. If you are too familiar with the electrical engineering, get better fully automatic memory with a combined charging type. It will cost you a little more expensive, but will save from unnecessary trouble.
4. Do not buy a charger of dubious origin. This is still an electrical device representing a certain danger, especially if it is made not clear where, and it is not clear to whom.
5. In any case, start exploiting the memory only after studying the instructions for operation.
Soon, a large number of motorists will encounter the need to charge the battery. Charger for a car battery - must be necessarily every driver and the presence of it is always necessary, regardless of the time of year and operation vehicle. In this article, we will tell you how to choose a charger for car battery.
The content of the article:
How to choose a charger for a car battery
Each car owner must have their own charger, as surely there are periods when your car can not be operated for a long time, which means that the battery will be discharged. Especially the battery needs to be charged in winter, despite the fact that the car is operated or not, the presence of a charger in this case Just needed. If you have become a happy owner of the car, then you will have any questions about the selection of the charger, we will try to answer them.Types of charger
Chargers are divided into two types:
- Chargers;
- Start-charging.
Simple chargers are carried out solely charging the battery and it is possible to maintain charging, without any additional functions.
Punchers
Starting devices can perform two functions: charging the battery and start the engine of the car. If everything is clear with the charging function, then the starting function, probably, new questions will cause several questions. As you know, in order to start a car, you need a large battery charge, respectively, if the battery is discharged, you cannot start the machine until you charge your battery to a certain level. The starting device will help you to start a car with a fully discharged battery, due to the fact that such devices can give a current several times more than a simple charger. But such devices have large dimensions and much harder than ordinary charging devices, and they are more expensive.
Charging Tok
The first thing you need to pay attention is the voltage that gives the charger, it must match the battery operating voltage. Charger charging current must be no more than 10% of the battery capacity, or be able to adjust it. Since most accumulators in cars have a capacity of 65A / h, then the battery must be supplied to the charging current of not more than 6,5 amper. Battery charging is best produced by a current of 5% of the battery capacity, that is, again, if the battery capacity is 65a / h, then it is recommended to let the current in the 3.2 sap. With such a current you will get the most deep and complete charge of the battery.
Chargers have both adjustable flow supply and constant. When the charging current is adjustable, you can adjust the current strength, and if there is no such possibility, the charger is charging the battery on the optimal modes, which is actually very useful for the battery.
The output voltage of the charger for the automotive battery should be 12 volts.
Additional functions
Despite the fact that most modern chargers are protected from overheating and protection against incorrect connection of the CLEM, specify the availability of these functions in the selectable charger.
Pulse battery chargers allow you to charge the battery with a deep discharge, this is a good and useful possibility, the presence of which will be very useful.
If you are well versed in electronics, you will be interested to look at the charger diagram for the car battery. Most chargers have the following scheme:
Those who "live a car" likes to control the charging process and have a functional charger, we will recommend to stop your choice on a commissioning device, which will have a built-in ammeter, the ability to adjust the charging current and other functions.
Drivers who are not often, but, nevertheless, face the need to charge and recharging the battery, but at the same time like simplicity and functionality, we will recommend electronic automatic chargers, without "unnecessary" indicators, switches and other "Soviet" functions.
What battery charger to choose
Tesla Zu-15860One of the most budget models of batteries charger. If you are constantly driving on your car and the charger you need to say so to the safety net, then this model is the perfect option for you.
Specifications:
TESLA PSU-15860 is an automatic output voltage charger: 6 / 12V. Rated charging current: 3.52 A, maximum: 6 A. Protection functions from overheating, incorrect connection and recharging.
Device price: 500 rubles.
Telwin Leader 150 Start
Popular model of commissioning device. A good option For those motorists who like to control the charging process and have a large list of opportunities. This device has several modes of operation, and most importantly - it will help to start the engine with a complete battery discharge.
Specifications:
Operating voltage: 12V. Maximum charging current: 20a. There is a built-in ammeter. Additional modes: normal and accelerated charging mode, fast start mode, protection against overload and incorrect polarity.
Device price: 4 000 rubles.
Bosch C3.
The most optimal and simple charger, which will allow you to "not bother" over the charge of the battery. The charger has a very compact size, and this is a big plus. To charge the battery, you need, just all over all, select the desired mode (of the 3rd) and the device itself charging the battery. Moreover, when the device charges the battery fully, it will switch to the charge mode. This charger is recommended for 12V: Varta, Bosch batteries and other popular batteries manufacturers.
Specifications:
Output voltage: 6 / 12V. Charging Current Power: 3,8A. It is possible to charge the battery with a pulse current, when it is full of discharge. The battery charge function when it is complete, charging the battery charging in a cold state. The presence of protection against improper connection of the terminal and overheating.
Device price: 2 500 rubles.
In any case, when choosing specific model Charger Read reviews and feel free to clarify your questions from the seller-consultant.
Charger Operation Rules
Probably, the principle of charging a car battery is familiar to everyone, but in this procedure there are several nuances that we will tell you below.Charge the battery is best in the garage or on the covered area. In extreme cases, the battery is charged on the street, in warm and dry weather.
When you need to charge the battery charger
So, the car battery is necessary only under specific conditions and situations, just do not need to do it. There is a generator in the car, which when operating the engine converts mechanical energy into electrical. Thanks to the electrical energy obtained by the generator, the entire electrical equipment of the car occurs, including the battery is charging. Therefore, if you often travel by car and travel rather last time, then your battery will be fully charged.
The battery must be charged in the following cases:
- If the indicator is on dashboard indicates that the battery is in a discharged state;
- The machine will not start, and there is no sound of the starter;
- The car was in a simple time;
- With prolonged and unsuccessful attempts to start a car.
In the first case, when the dashboard indicator informs you that the battery is in a discharged state, in principle, you can do without charging it - if the car will decide on my own, how it was mentioned above, he will be charged the generator. If you have to often join the engine or go to a country trip, then, of course, the battery must be recharged.
If the machine does not start, and the starter sound is not heard, most likely, the battery power is not enough to start the starter. In this case, you need a battery to charge a bit or if you have a commissioning device, then use it, so that the conversion of the car and after a while (giving a little charge a battery) go to the path.
If you did not go for a long time by car, especially if you have not been exploited a car in winter time years, then the battery must be recharged at least 1 time per month. If the battery is old, was in a cold garage or at all the car in a simple is in frosty weather on the street, then check the level of its charging and charge - you need several times a month.
Well, the last, if you tried to start a car several times - and unsuccessfully, with the reason that the engine does not start, is not a battery, it will need to be charged. Since it takes a large amount of battery power to start the engine, and if you tried the engine several times, the battery will probably be in a discharged state.
Connect the charger to the battery
Before connecting the charger to the car battery, be sure to drain the car engine if it was running. Most modern chargers do not require the automotive power terminals from the battery. That is, you only need to drown out the engine, remove the right terminals are unnecessary. Inspect the battery: there is no electrolyte hernel, as well as there is no moisture on the battery.
Now proceed to connect the charger to the battery. If you did not remove the car terminals, then the terminals of the charger must wear over the automotive. Metal "tongs" of the charger terminals should cover the metal part of the automotive terminals and well be fixed on them. If automotive terminals were removed from the battery, then the charger terminals are put on directly on the battery terminals.
Connect the charger to the battery is necessary as follows: first it is necessary to connect "+" the red terminal of the charger to the "+" battery, then connect the "-" black terminal of the charger to the "-" battery. After that, check whether the terminals are firmly. Next, insert the charger's plug into the socket when the charger turns on, select the necessary mode of its operation in accordance with the instructions for it.
Turning off the charger occurs in the reverse sequence of connection, that is, you first translate the charger to standby mode, then turn it off from the power supply network, then remove the "-" (black terminal) and follows "+" (red).
Charging car battery charger
Now let's talk in more detail about charging the battery. After the charger is connected to the battery, you must select the charging mode - in the automatic charger, or configure the charging parameters in the usual charger. If everything is clear with the modes, then to charge the battery with a regular charger, you will probably need to install the battery charging current.
Do not charge the battery with high current (or the "Boost" mode), despite the fact that you can quickly charge the battery, it will very negatively affect the battery itself. Try not to use this feature of the charger, or at least use it in the most extreme case.
Do not allow frequent and deep battery discharges. If the car is in a long simple - charging the battery.
The generator supplying energy to the car battery is not 100% coping with its work and its power is usually lacking to fully restore the charge of batteries. Because of this problem, usually several times a year have to visit the station maintenancethat is not always convenient. To be autonomous in solving this problem, you can purchase chargers for AKB. We bring to your attention the rating of the ten best chargers in the opinion of users who bought this useful accessory For your car.
Top 10 rating of the best charger for car batteries
1. "CTEK MXS 7.0"
The best device for recharging automotive batteries for quality quality, price and accessible functionality. Before starting recharging, it is possible to diagnose and determine which charge capacity will be able to hold the battery. The device is able to operate at low temperatures, and an additional feature that allows you to cope with the bundle of electrolyte inside the battery, will help regenerate energy even in the case of complete and deep discharge.
⚙ Specifications:
- The maximum allowable capacity of the battery: up to 120 Ah;
- Thoughtful functionality;
- Automated eight step charging procedure;
- Works in adverse climatic conditions;
- The warranty from the manufacturer is 5 years.
❌ Minuses:
- Not detected.
Typical user feedback: Cold winter. Akb in the car at the neighbor "Dead". Connected "my charm." Attempt, talked. I started without any questions.
Video overview of CTEK charger
2. "CTEK M300"
The professional class device is characteristic of its versatility: it will be able to recharge the battery and sea transport. It does not generate a galvanic type current, so completely safe for metal parts of the machine design. It works very quiet, there is a special mode for work at night, which further reduces noise. The recharge program is multi-stage and fully automated, which will allow you to regenerate energy even in fully discharged batteries.
⚙ Specifications:
- Compatibility with AKB: for 12V lead-acid batteries;
- The maximum allowable capacity of the battery: up to 500 Ah;
- Maximum permissible current: 25 amp
- Protection Level: IP 44 (for Outdoor Application).
Pluses and features of the charger:
- Minimum noise;
- Durability and quality of work performed;
- Manufacturer's warranty - 5 years;
- Universal aggregate;
- Low noise.
❌ Minuses:
- High price.
3. "CTEK MXS 5.0 Polar"
Another version of the Swedish charger, the main feature of which is the possibility of working under conditions of low temperatures: the device is capable of functioning with thirty-perdus frost. Aggregate is suitable for charging passenger cars, snowmobiles and quad bikes. To work with adverse weather conditions, a well-dilated long cable is provided. Like other charging of the battery from the company "CTEK", the device is charging in an automatic eight cycle mode and reanimates batteries after a long downtime.
⚙ Specifications:
- Compatibility with AKB: for 12V lead-acid batteries;
- Protection level: IP 65 (protection against moisture, spray and dust).
Pluses and features of the charger:
- Works at a very low temperature;
- Durable;
- High-quality assembly;
- Five-year warranty.
❌ Minuses:
- Poorly copes with charging high capacitive batteries.
4. "Bosch C7"
Good German charger, with fairly good opportunities for recharging and not bad functionality. When connected automatically recognizes the type of device, selects the process of recharging. Protection against accidental closure can operate at sufficiently low temperatures.
⚙ Specifications:
- The maximum allowable capacity of the battery: 12B - up to 230 Ah, 24V - 120 Ah;
- Maximum allowable current: 7 amps;
- Protection level: IP 65 (protection against moisture, spray and dust).
Pluses and features of the charger:
- Suitable for two types of batter with different voltages: 12 and 24V;
- Protected against short circuit;
- There are special attachments on the housing to place the device on vertical surfaces, for example, on the wall.
❌ Minuses:
- In the basic set there is no adapter to connect to the car cigarette lighter.
5. "CTEK CT5 TIME TO GO"
Compact tool for charging passenger cars, with convenient control indicators: With their help, it is much easier to control the process of recharging. After switching on, it works in automatic mode, upon completion of the work, it will inform about it with the help of the audio signal. The fifth place occupied due to the slow charge rate compared to its competitors.
⚙ Specifications:
- Compatibility with AKB: for 12V lead-acid batteries;
- Maximum allowable current: 5 amps;
- Protection level: IP 65 (protection against moisture, spray and dust).
Pluses and features of the charger:
- Reliability of work;
- Able to reanimate long-term batteries;
- Wear resistance;
- Compactness;
- Manufacturer's guarantee - 5 years.
❌ Minuses:
- Slow charging speed.
6. "CTEK MXS 5.0"
As can be seen from customer reviews, products swedish company It is very popular and therefore half of the rating of the best chargers occupy the models of this company. The version of "CTEK MXS 5.0" has absorbed the best features of their more powerful fellows from the line and is located on the fifth place only because of lower technical characteristics: For example, charging cannot work at such low temperatures as an aggregate from the Polar series and charges the battery it is somewhat slow. But it costs cheaper.
⚙ Specifications:
- Compatibility with AKB: for 12V lead-acid batteries;
- Maximum permissible capacity of the battery: up to 110 Ah;
- Maximum allowable current: 5 amps;
- Protection level: IP 65 (protection against moisture, spray and dust).
Pluses and features of the charger:
- Durable;
- Reliable in work;
- Warranty from the manufacturer - 5 years;
- Reanimates the battery after long-term discharge;
- Acceptable price.
❌ Minuses:
- Low power.
7. "Ring Automotive RecB206"
The best start-up charger intended for batteries with a voltage 6/12 V. After switching on, it works automatically, to control the charge level on the case there is a diode indication. Ergonomic housing, cables with clips can be hidden inside it. At low temperatures, it may malfunction, and slowly charges, but these shortcomings are more than compensated for by the cost of the device.
⚙ Specifications:
- Compatibility with AKB: for 6 / 12V lead-acid batteries;
- The maximum allowable capacity of the battery: up to 70 Ah;
- Maximum permissible current: 6 amp;
- Level of security: not provided.
Pluses and features of the charger:
- Suitable for charging 6B battery;
- Ergonomic design;
- The ability to control the level of charge is provided.
❌ Minuses:
- Does not work well at low temperatures;
- Little power.
8. "SMART POWER PROFESSIONAL SP-25N"
Powerful commissioning unit for acb machines of any class: from small cars to heavyweight construction equipment. Works in two modes and is suitable for electricity regeneration in batteries with 12 or 24V voltage.
⚙ Specifications:
- Compatibility with AKB: for 12/24V lead and helium batteries;
- The maximum allowable capacity of the AKB: 12B - up to 500 Ah, 24V - 250 Ah;
- Maximum permissible current: 25 amps;
Pluses and features of the charger:
- Very powerful;
- Fast charging;
- Works in two ranges.
❌ Minuses:
- Hard, uncomfortable cable;
- There are complaints about fast, come out after purchase;
- Low level of security.
9. "Auto Electrical T-1050"
Domestic apparatus for charging batteries of passenger cars with simple design, functional, but delicious price. Its retail price is 2100-2300 rubles. The body is all-metal, but on the side there are holes for ventilation, so the level of security is minimal. On the case there are mounts for grounding the device. Compared to other competitors, it charges quite slowly and can get closer at low temperatures.
⚙ Specifications:
- Compatibility with AKB: for 12V lead-acid batteries;
- The maximum allowable capacity of the battery: up to 90 Ah;
- Maximum allowable current: 5 amps;
- Level of Protection: IP 20 (Use only in buildings).
Pluses and features of the charger:
- Minimum price;
- Simple design.
❌ Minuses:
- Low charging speed;
- It does not work well at minus temperatures;
- Poor functionality.
10. "Orion PW 415"
Also, the model of the domestic company, providing charging the battery with a voltage of 12 or 24V. Weighs a little less than a kilogram and compact enough. Can be applied as an anti-an aggregate. Powerful, ensures fast charging batteries. It is inexpensive, but there is a large number of complaints on the quality of the assembly.
⚙ Specifications:
- Compatibility with AKB: for 12/24V lead-acid batteries;
- The maximum allowable capacity of the battery: up to 160 Ah;
- The maximum allowable current: 15 amp;
- Level of security: from overheating.
Pluses and features of the charger:
- Inexpensive;
- Works in two ranges.
❌ Minuses:
- Poor build quality.
Automotive on-board network As long as the power plant does not start nifting the battery. But she herself does not produce electrical energy. The battery is simply a coolant electricity that is stored in it and is given to consumers. After the spent energy is restored due to the operation of the generator, which produces it.
But even the permanent recharging of the AKB from the generator is not able to completely restore the spent energy. For this, periodically need charging from an external source, not a generator.
Design and principle of the charger
To produce chargers are used. These instruments work from the network 220 V. In fact, the charger is a conventional electrical energy converter.
He takes an alternating current of the 220 V network, lowers it and converts to d.C. voltage up to 14 V, that is, up to voltage, which gives the AKB himself.
Now a large number of all sorts of charging devices are produced - from primitive and simplest to instruments with a large number of all kinds of additional features.
Chargers are for sale, which in addition to possible recharging of the ACB installed on the car can also be launched power plant. Such devices are called charging and starting.
There are and autonomous charging and starting devices that can recharge the battery or run the motor without connecting the device itself to the 220 V. network inside the same device, in addition to the equipment that converts electrical energy is also available, which makes such a device autonomous, although the battery of the device is also After each electricity recoil requires charging.
Video: how to make the simplest charger
As for conventional charging devices, the simplest of them consists of all of several elements. The main element of such a device is a lowering transformer. It reduces voltage from 220 V to 13.8 V, which are the most optimal for charging the battery. However, the transformer only lowers the voltage, but the transformation of it from AC to the constant is performed by another element of the device - a diode bridge that produces a rectification of the current and separating it to a positive and negative pole.
Behind the diode bridge, an ammeter is usually included in the diagram, which shows the current strength. The simplest device uses the armerter. In more expensive devices, it can be digital, also in addition to the ammeter can be built and a voltmeter. In some chargers, there is a possibility of selecting voltage, for example, they can be charged both 12-volt batteries and 6-volt.
From the diode bridge, there are wires with a "positive" and "minus" terminals, which the device is connected to the battery.
All this is concluded in the housing, from which the wire comes out with a fork for connecting to the network, and wires with terminals. To secure the entire scheme from possible damage, the fuse is turned on into it.
In general, this is the whole scheme of a simple charger. Perform the battery charging relatively simply. Terminals of the device are connected to the discharged battery, while it is important not to confuse the poles. The device is then connected to the network.
At the very beginning of charging, the device will supply voltage with a current of 6-8 amps, but as charging, the current will decrease. All this will be displayed on the ammeter. If the battery is fully charged, the ammeter arrow drops to zero. This is the entire battery charging process.
The simplicity of the charger scheme provides the possibility of its independent manufacture.
Independent manufacture of a car charger
Now consider the simplest chargers that can be made by yourself. The first will be a device that concept Very similar to the described.
The scheme indicates:
S1 - power switch (toggle switch);
FU1 - fuse on 1a;
T1 - TN44 transformer;
D1-D4 - d242 diodes;
C1 - Capacitor 4000 μF, 25 V;
A - ammeter on 10a.
So, for the manufacture of a homemade charger, you will need a lowering transformer TS-180-2. Such transformers were used on old tube TVs. Its feature is the presence of two primary and secondary windings. At the same time, each of their secondary windings at the exit has 6.4 V and 4.7 A. It is therefore to achieve necessary to charge AKB 12.8 V, which is capable of this transformer, you need to produce serial connection These windings. For this, a short wire with a cross section of at least 2.5 mm is used. sq. The jumper connects not only the secondary windings, but also primary.
Video: The simplest battery charger
Next will need a diode bridge. To create it, 4 diodes are taken, calculated for the strength of at least 10 A. These diodes can be fixed on the textolite plate, and then make their correct connection. The wires that the device will connect to the acb are connected to the output diodes. On this assembly of the device can be considered completed.
Now about the correctness of the charging process. When the device is connected to the battery, it is impossible to clarify the polarity, otherwise it is possible to disable and the battery and the device.
When connected to the battery, the device must be completely de-energized. Include it in the network only after connecting to the battery. It should also be disconnected from the battery after disconnecting from the network.
A highly discharged battery cannot be connected to the device without a means lowering voltage and current strength, otherwise the device on the battery will be supplied to the high force current that can harm the battery. As a lowering agent, an ordinary 12-volt lamp can act, which is connected to the derivative terminals before the battery. The lamp during the operation of the device will burn, thereby partially taking over the voltage and current. Over time, after partial charging of the battery, the chain lamp can be excluded.
When charging, it is possible to check the degree of charging of the battery periodically, for which you can use a multimeter, voltmeter or load fork.
A fully charged battery when checking on it voltage should show at least 12.8 V if the value is below - further charging is required to bring this indicator to the desired level.
Video: Charger for car battery do it yourself
Since this scheme does not have a protective housing, you should not leave the device unattended during operation.
And let this device do not provide the optimal 13.8 V at the output, but to recharge the battery are quite suitable, although after about two years of use of the battery, still need to charge it by the factory device, providing all optimal parameters for charging the battery.
Bestracial Formator Charger
Interesting design is a scheme homemade devicewhich has no transformer. His role B. this device Performs a set of capacitors designed for voltage in 250 V such capacitors must be at least 4. The capacitors themselves are connected in parallel.
A resistor designed to clean the residual voltage after disconnecting the device from the network parallel to the set of capacitors.
Next, the diode bridge will be required to work with a permissible current of at least 6 A. It is connected to the circuit after a set of capacitors. And then the wires that the device will connect to the battery will be connected to it.
