Modern chargers are small in size and weight, and also have increased efficiency and safety margin. ZU Kedr Auto 10a belongs to the category of just such products. Due to the fact that this model is produced in our country, it is maximally adapted for operation in conditions of variable characteristics of the electric current in the network.
Maintenance
The Kedr Auto 10a charger consists of a rectangular plastic case, on the front panel of which there are indication and control elements. To control the level of charging current, the device is equipped with a mechanical ammeter.
Also, an LED is built into the front panel of the device, which allows you to visually determine in which mode the memory is operating. To the right of the LED is a button with which you can easily select the battery charge option.
On the opposite side, an electric cable with a plug and output wires to the battery are connected to the charger, at the ends of which there are spring clips.
In order to ensure maximum efficiency when using the Kedr Auto 10a charger, you need to know the main technical characteristics of such devices. In the instructions for this device, the manufacturer specifies the following parameters:
| Characteristic | Meaning |
|---|---|
| Voltage | 170-240 Volts |
| Prestart charge mode | 10 Amp |
| Max charging current | 10 Amp |
| Rated charging current | 5 Amp |
| Charge voltage | 15 volt |
| Charge algorithm | Smooth decrease in current |
| Power consumption | up to 250 watts |
| Rated battery voltage | 12 Volt |
| Suitable for battery charging | Lead acid |
| Rechargeable battery capacity | from 14 to 190 Ah |
| Ammeter | Strelochny |
| Dimensions | 185x130x90mm |
| Weight | 600 grams |
The territory of Russia is divided into 4 climatic zones, therefore, in addition to the main technical characteristics, it is important to know under what environmental conditions the operation of the Kedr Auto charger is allowed.
If the car is charged in an open area in winter, then the minimum temperature below which the operation of the charger is prohibited is minus 10 degrees Celsius. The maximum positive operating temperature of Kedr Auto 10a is +40º C.
Using the Kedr Auto 10a charger, you can charge a car battery with a voltage of 12 volts. A feature of this model is the impossibility of setting the exact value of the current strength. The vehicle's main charge cycle is an automatic process that is activated when the charger is connected to the battery and ends when the battery is fully charged. The maximum value of the current strength at the battery terminals throughout the entire charging cycle is 5 A.
Given such features of the device, it can be assumed that it will take too long to charge large-capacity batteries. To fully restore the battery charge, it will be necessary to supply 10% to its terminals for 10 hours, so a battery with a capacity of 150 A / h cannot be charged even during the day.
You can charge the battery using Kedr Auto 10a in three modes: automatic, pre-start and cyclic. Each charge recovery option has its own characteristics, therefore, in order to properly connect the device, several steps must be performed in sequence.
In automatic mode, the algorithm of the device operation completely eliminates the possibility of overcharging, which cannot but have a positive effect on the “health” of the battery. To properly activate this mode, it is enough:
Thus, 2 steps are enough for the device to start working in automatic mode. After the end of the charging cycle, the charger will reduce the supply of electric current to the minimum possible value, and for additional information about the completion of the process, the LED will start flashing.
In a situation where the battery is not completely discharged, but it is not possible to crank the crankshaft to a sufficient number of revolutions to start the engine, you can perform express recharging using this device. In order to activate the pre-launch mode of the Kedr Auto 10a charger, you must:
After activation of the pre-start mode, the red indicator on the front panel will glow continuously for 5 minutes, while the current at the battery terminals will increase to 10 A. This is usually enough to significantly restore the capacity of the car battery. At the end of the pre-start mode, the device will automatically be switched to automatic operation.
The Kedr Auto 10a charger has a cyclic charging mode that allows you to restore batteries that have been subjected to deep discharges. As a rule, in this case, sulfates form on the surface of the plates, which prevent the normal course of a chemical reaction during standard battery charging.
To activate the cyclic mode, it is also necessary to connect the battery to the charger, as described above, but after turning on the automatic mode, immediately press the button located to the right of the ammeter. The activation of the intermittent operation of the device can be judged by the red LED flashing on and off alternately.
PDF Operating instructions for the Kedr Auto 10 charger can be downloaded.
Do you have a charger Cedar Auto 10a? Then tell us in the comments which one and about your impressions about it, this will help other motorists a lot and make the material more complete and accurate.
Any car owner should have a charger for a 12 V car battery in their arsenal. It is simply impossible to do without it when operating a car. If you are a beginner car enthusiast and have not yet bought a charger for a battery, then you will definitely come to this. This is especially important in winter, when you need to charge the battery more often than usual. Otherwise, you may end up in a car with a “dead” battery and have to “light up”. You can, of course, charge the battery at the service station. But these are extra costs and wasted time. It is easier to charge the battery in the garage or at home. You just need to choose the right charger. In this article we will talk about chargers for the Cedar car battery. Consider different models and read what people say in the reviews.
This charger (charger) is designed to charge car batteries. And also the device is designed to restore the performance of batteries, which they have lost as a result of oxidation and sulfation of the electrodes. In addition, the charger can be used for charge-discharge training to increase the service life.
The main features of the device:
The network cable, as well as cords with clips, are located in a special compartment on the back of the device.
Note! ZU "Kedr-M" voltage, which is life-threatening. Always switch off the machine before repair work and changing the fuse. It is strictly forbidden to use self-made fuses and block the openings in the housing provided for ventilation. In addition, it is forbidden to charge the battery closer than one meter to heaters, stoves, etc.
The table below shows the main parameters of the Kedr-M device.
| Characteristics | Meaning |
|---|---|
| Characteristics | Meaning |
| Voltage in the power supply network, V | 220 |
| Chargeable battery rating, V | 12 |
| Charge current, A | up to 4 |
| Power consumption, watt | up to 85 |
| Duration of impulse charge current in cyclic mode, sec | from 15 to 75 |
| Duration of pulsed discharge current in cyclic mode, sec | from 5 to 25 |
| Permissible ambient temperature, C | from 10 to 40 |
| Permissible air humidity, % | 98 (at 25 C) |
| Permissible atmospheric, | 84 kPa |
In order to prepare Kedr-M for work, open the rear compartment and remove the cords with terminals. Set the first toggle switch to charge mode, and the second select continuous or cyclic mode. Continuous is recommended when you need to charge the battery. The cyclic mode is used when desulfating or forming electrodes. At the same time, a 12 volt light bulb with a power of 6 watts must be connected to the terminals. Then, observing the polarity, connect the terminals to the current leads.
It is worth noting here that the Kedr-M charger has protection against short circuit and incorrect connection. The device will only work if a battery with a voltage of 10 volts or more is connected to the terminals. That is, it will not charge a deeply discharged battery, going into protection.
During the operation of the charger, you can switch modes without disconnecting the device from the 220 volt network. If the battery is discharged, then at first the charging current will be 4 amps, and then it will constantly decrease. After the battery is fully charged, the charger will turn off and the LED will flash, indicating the end of the process. After that, you can set Kedr-M to recharge mode.
In cyclic mode, the battery is charged for approximately 45 seconds and then discharged by means of a connected light bulb. In this mode, there is no automatic shutdown and the process must be controlled independently.
Below you can see two options for the schematic diagram of the Kedr-M car battery charger.
In the table below, you can see the designation of the elements in the circuit diagram.
This model of charger is designed for charging, restoring 12 volt lead-acid batteries and conducting charge-charge training cycles.
The power and battery cords exit from the back of the device. Unlike the Kedr-M model, there is no compartment for laying wires. The procedure for using the Kedr-Auto 4A charger will be shown below in the "How to use?" section. The table below shows the main characteristics of these models.
Below is a schematic diagram of "Kedr-Auto 4A" and "Kedr-Auto 12V".
In the table you can see a list of elements indicated on the circuit diagram.
The photo below shows a printed circuit board for the manufacture of "Kedr-Auto 4A" and "Kedr-Auto 12V".
This is an improved version of the Kedr-Auto 4A charger, which was released in 2008. The manufacturer reports that the charger is designed to charge 12-volt lead-acid batteries.
What is the difference between the improved model?
The main characteristics of "Kedr-Auto-10" can be seen below:
Charging time depends on the degree of rarefaction of the battery and its capacity. ZU "Kedr-Auto-10" has a microprocessor that controls charging. Including pre-launch mode. All this is done when the device is switched to automatic mode. First, an increased charge current is applied, which is then reduced to nominal. This speeds up the charging process.
In the arsenal of every motorist there should be a car. Operation of a vehicle without this device can become much more complicated. The most useful car charger can be in the winter season, when the battery has to be charged much more often. When the battery is completely discharged, you will have to “light up” the car, which is not always convenient, and in some cases may require additional expenses due to contacting the service station. It is much easier to charge the battery at home. One of the most popular brands of car chargers is Kedr - devices of this brand are bought by many vehicle owners.
Charging "Kedr-Auto" is intended for recharging car batteries. Such equipment is mainly used to restore the performance of batteries that have lost it due to sulfation and oxidation reactions of the electrodes. In addition, it is also possible to increase the service life with the help of the Kedr-Avto Mini charger by training the charge-discharge cycle.
On the reverse side of the charger is a special compartment in which cords with clips and a network cable are hidden.
The voltage of the charger "Kedr-Auto 4A" can harm human health or cause death. The device must be turned off before starting restoration and repair work and changing the fuse. It is strictly forbidden to install homemade fuses and block the ventilation openings of the case. In addition, the battery must not be charged near heaters.
Before starting work, cords with terminals are removed from the rear compartment of the device. The first lever of the device is switched to the charge mode, the second - to the cyclic or continuous mode.
Continuous mode is used when a full charge of the battery is required.
The cyclic mode is used when forming or desulfating electrodes. In this mode, a light bulb with a power of 6 watts at 12 volts is connected to the terminals.
Then, the terminals are connected to the current outputs with respect to the polarity.
The Kedr charger has a protection mode against incorrect connection and short circuits. The instructions for the Kedr-Auto 4A charger indicate that its operation is possible only if a battery with a minimum voltage of 10 volts is connected to the terminals. When you try to restore the charge of a completely discharged battery, the device will turn on the protective mode of operation.
Switching between operating modes can be carried out without disconnecting the charger from the mains. According to reviews on Kedr-Auto, the current strength at the beginning of the charging process is 4 A, followed by a gradual decrease. The charger automatically turns off after the battery is fully charged, which is indicated by a special LED. After that, you can put the charger into recharge mode.
Charging the battery in cyclic mode lasts 45 seconds, after which a special light bulb turns on. This mode does not have an automatic shutdown, so it is desirable to control the entire process.
Both models are used for battery recovery, charging and charge-discharge training cycles.
On the rear wall of the devices are the power and connection wires to the battery. There is no special compartment for placing wires in these models. The instructions for the chargers "Kedr-Auto 4A" and "Kedr-Auto 12V" describe in detail the rules of operation and the procedure for use.
Charger "Kedr-Auto 12V" has the following technical characteristics:
This model is an improved version of the previous memory - "Kedr-Avto 4A", which was created in 2008. The device is used to charge a battery with a nominal value of 12 volts.
The charging time of the battery varies depending on its capacity and the degree of discharge. The microprocessor built into the memory controls charging and pre-start mode. The inclusion of all modes and the activation of the device are carried out after the device is switched to automatic mode. First, an increased charge current is applied, after which its strength is reduced to the nominal value, which can significantly speed up the process of charging the battery.
The instructions for the Kedr-Auto 4A charger describe in detail the process of using the device and charging the battery. It is impossible to disable the charger, since the protection system protects it from damage even if the terminals were initially connected incorrectly.
Restoring a full battery charge is carried out as follows:
In a cycle, the battery is charged to full capacity as follows:
Before the direct process of charging the battery, plugs are unscrewed from the cans. The terminals after the end of charging or recovery are disconnected only after the charger is disconnected from the 220 V network.
Most of the reviews left on Kedr chargers are positive. The most popular model of the device is Kedr-Auto 4A. Somewhat less often you can find reviews on the Kedr-Auto 10 model.
Among the advantages of memory, motorists include simplicity and ease of operation, a low price for Kedr-Auto (about 1500-2500 rubles) and a long service life. Users often note that the charger can last ten or more years without any complaints. For many users, one of the main benefits is cycling, as it allows for desulfation and revitalization of old batteries. Motorists often note that with the help of this mode it was possible to restore the performance of the batteries, which for a long time were completely discharged. Of course, it is impossible to completely restore the battery capacity, but a positive effect can be achieved.
However, you can also encounter negative reviews. Some owners of Kedr-Auto chargers note that the battery does not charge in automatic mode. If the battery capacity exceeds 60 Ah, then it takes a very long time to charge it due to the 4 amp limit. The same rechargeable batteries, the capacity of which exceeds 70 Ah, are not fully charged. Users also noted that Kedr-Auto chargers do not charge those batteries whose charge fell below 10 volts.
Despite all the negative reviews and shortcomings, Kedr-Auto chargers are one of the best and most popular in the automotive market. The devices allow you to quickly charge batteries, are distinguished by a long service life and wide functionality, and are significantly ahead of their competitors from other brands.
The service life of the battery - the source of life of the car - is from 5 to 7 years. It all depends on the operating conditions. However, you can increase the battery life if you periodically recharge it and conduct special training. For these purposes, the Kedr charger was developed - one of the best in the entire Russian automotive market.
The operation of any rechargeable battery is based on anodic-cathodic reactions that occur between lead cells and a sulfuric acid solution. As a result of the reduction of lead dioxide on the cathode, we obtain an electric current. However, over time, the course of reactions weakens. It is then that it is necessary to connect "rectifiers" that restore the original elements.
The main purpose of a series of domestic devices "Kedr" is to charge the battery and restore its performance, lost due to the formation of lead sulfates and oxidation of the electrodes. In addition, the Kedr charger can be used to "train" the battery in order to improve its technical characteristics and extend its service life.
Externally, the devices of the series are a black plastic parallelepiped of a rather large mass. The control panel is located on the front side. The device has a cable for connection to the AC mains, two clamps that are connected directly to the battery terminals. Setting up the device for recharging occurs automatically.
The series of devices includes pre-start devices that are used to start a car engine with a heavily discharged battery (“Kedr-mini”). Also in the assortment there are universal units that perform both functions (charger "Kedr-auto-10").
Before starting the device, you must familiarize yourself with the rules of its operation. Neglect of this simple rule can cause electric shock or even death.
The most important thing is to study the control panel of the device before connecting it to the battery. In the vast majority of cases, it includes:
In the back wall of the device there is a small compartment in which there are cords necessary to connect the Kedr charger to the mains and battery.
The family of devices "Kedr" fell in love with domestic motorists for ease of use.
The device recharges or restores the battery thanks to the automatic functions built into its control board:
Also, the device is equipped with automatic short circuit protection as a result of accidental contact of the output terminals or incorrect connection of the battery. When triggered, the protection system simply stops supplying electric current, thereby protecting both the Kedr charger itself and the battery.
Before you start charging, you need to make sure that your battery needs to be recharged and that it is working. To do this, measure the voltage at the terminals. In winter, the maximum allowable discharge level is no more than 25% of the nominal value, and in summer - no more than 50%. If the voltmeter reads lower, then the battery needs to be charged.
Standard car batteries have a nominal voltage of 12 volts. Only in this case, "Cedar" - a charger (instructions below) - can charge the battery. Also read the data sheet of the battery to make sure that this is indeed the case. Remember that the voltage in the charger must be higher than the battery voltage in order to charge. Otherwise, nothing will work.
The instruction says that to charge the battery, you must do the following:
After that, the battery will start charging. As soon as the electric capacity is fully restored, the Kedr charger will notify you of this with a red indicator “Charging complete”. After that, the battery is ready for work.
The decrease in battery capacity occurs as a result of partial sulfation of the plates - the formation of sulfates on the electrodes. In this case, it is possible to increase the efficiency and increase the durability of the battery. For this you need:
The restoration of working capacity occurs according to the following scheme: the Kedr charger charges the battery for 45 seconds, and then turns off, and the lamp comes into operation, which discharges the battery within 15 seconds. Such cyclic charging / discharging increases the resource and performance of the battery.
Everyone who has a car knows very well where the colored box is, pasted over with colored stickers, why it is needed, but few people think that the battery is not eternal, and you need to at least take care of it. Only then will she be able to last the 5-7 years allotted to her. And if necessary, it needs to be recharged. And to charge correctly, and now there are all conditions for this.
Environment hundreds of thousands of models of chargers (chargers), many motorists prefer domestic charging. Either the genetic force of habit, or commendable patriotism, but the Kedr Auto 4a charger enjoys a certain popularity. Many have difficulty repairing this device due to the fact that the circuit is lost, and it is not always possible to find the original one. We rummaged through our archives, and dug up a device diagram, which we offer for study.
It has a simple architecture, and it’s quite easy to figure it out if you can distinguish a resistor from a canister. And if you can’t, we will try to explain what it is, why it is needed and how to use it.
Chemistry is a delicate thing, and the battery consists of chemical processes through and through. We will not dive into the intricacies of chemistry, but we will find out what concerns the average motorist, his battery, and the Kedr Auto 4a charger.
The battery should be ok. Winter and summer. But it has an acceptable degree of discharge, which is checked quite simply - using a hydrometer, if the battery design allows, or by measuring the minimum voltage at the terminals. In the first case, we measure the density, in the second, directly the voltage. The allowable value of battery discharge in winter is 25% of the nominal value, and in summer - 50%. If the bank can hold a voltage of 1.6 V for five seconds, then it is fully charged. If the voltage is 1.4 V, then the battery is 50% dead. all arithmetic.
You need to recharge the battery, and if you chose Cedar Auto 4a, then it will do its job well if it is working properly. And the consequences of improper charging can be sad for the battery, so no matter how smart the device is, it needs to be controlled.
Any rechargeable battery is charged from a source that exceeds the battery voltage, and this must be a DC source. Therefore, the charger must convert the alternating current to direct current, and at the output give us the voltage necessary for charging. The device does this excellently. Here are its technical data:
Designed for both charging and restoring batteries that have lost their charge due to a number of reasons. A lot of factors can cause a voltage drop on the battery, but the most basic is the sulfation of the plates and their oxidation. Cedar is also intended for training charge-discharge cycles that restore the battery's ability to hold a charge.
Charging takes a certain amount of time, which depends on the capacity of the battery, on the degree of wear of the plates, as well as on the degree of discharge of the battery. Equipped with the simplest microprocessor that controls all possible modes of charging and operation of the device.
When the charger is connected with the correct polarity, the device starts charging the battery in automatic mode, which is indicated by the LED. In this mode, a standard battery is charged with a current of not more than 4 A with voltage control at the terminals. When the maximum value of the charging voltage is reached, the device itself is disconnected from the battery. This is indicated by a flashing LED.
To remove sulfation, you must use the "cycle" mode. In this mode, it is desirable to connect a parallel load to the battery, which consumes about 1 A of current. A 6 watt car bulb is suitable for this. If this is not done, then the process will also be successful, but it will take a little longer. To completely eliminate sulfation, it is necessary to leave the battery connected to the device for 3-5 days.
The device also has a pre-start battery charging mode. In this case, charging is faster due to the fact that a high current is applied - up to 10 A. The process lasts about five minutes. After that, the device automatically switches to the "automatic" mode, and already limits the current to 4 A.
This is how Kedr Auto 4a works. Thanks to a simple scheme, any of its malfunctions can be identified and eliminated, and the device serves for a long time. Keep an eye on the ammeter, and good luck on the road!
