How to correctly discharge the battery of an electric screwdriver. The process of discharge of the battery of an electric screwdriver

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How to disperse the battery of an electric screwdriver

The battery electric screwdriver is very useful and convenient, but at the same time a picky construction tool. The device needs special care and a special approach to operation. Especially when it comes to adaptation with a pre-installed nickel-cadmium battery. New lithium-ion batteries allow you to freely relate to charging and discharge cycles. Old devices require a strict attitude to these processes. Thus, the need to discharge the battery may occur already on the first day of use. It seems strange, but this issue must be treated as seriously as possible, and first disassemble how to discharge the battery of an electric screwdriver correctly and without the risk of damage to the device. Otherwise, you can well spoil the device on the first day.

Why do you need a complete discharge of the battery of an electric screwdriver

First, nickel-cadmium batteries have a certain memory effect. Batteries remember the level of charge, which you have reached when eating, and next time it perceives it as a complete. That is, you charged the battery by 70%, removed the electric screwdriver from charging and began to use. Now these 70% of the charge are perceived by an electric screwdriver as 100%. And so every time, until the electrolytes completely boil.

Secondly, the need for complete discharge can occur when resuscitation of the battery. If you want to restore the battery, you will have to first discharge it completely to find out which of the cans failed. Here, too, you need the right approach and special methods.

What the wrong discharge can lead to

Immediately discard the thought that you can just take and twist the head of the device until the battery completely sits down. Thus, you will harm not only the battery, but also other important elements of an electric screwdriver, to restore or repair which, perhaps, it may not be possible. Use only proven methods, how to completely discharge the battery of an electric screwdriver.

Please note that nickel-cadmium devices, unlike lithium-ion, do not discharge independent. If the second.Type battery can simply be pulled out of the case and leave it for a while so that it is discharged yourself, in the case of the first device it will not work out, because such a battery retains its charge.

How to discharge the battery of an electric screwdriver with a light bulb

The easiest and, not strange, is a popular way to completely discharge the battery cans. You will have to disassemble the case. If there are screws on the handle, excellent. Just twist them with a screwdriver. In the case of the glued body, you will have to slightly disrupt the structure. Take a hammer and easily walk along the seam of the handle. Do not worry, soon you will correct everything with the help of new glue.

When the handle is open, you have access to the battery itself. Disconnect it from the system of electric screwdriver and connect a light bulb with the corresponding voltage to the terminalines of the battery. As a rule, this indicator is 12-13 in. You can find the voltage of your device either on it or in the instructions of the device.

The lamp heats up and gradually “draws” the energy from the battery. The process will not take much time. If the light is fucked up, then the battery is completely discharged.

Recently, 14-volt nickel-cadmium batteries are increasingly found. Here you will have to use bulbs with such power. Or other ways. Look more details in

The choice of screwdrivers offered in the modern market is impressive. You can without any difficulties choose the best option for any specific tasks.

By the type of power, all the variety of screwdrivers can be divided into 2 categories: network, receiving power from a conventional power grid, and batteries component by batteries. The latter attract their autonomy. To work with them you will not have to pull carrying, think where to connect them, etc.D. In addition, in recent years, the battery technology has significantly stepped forward, so such a productivity tool today is practically not inferior to ordinary network models. However, the battery is still potentially weak-improper use and especially charging can significantly reduce the service life of the battery. And the price of a new nutrition element may turn out to be a little below the new tool. Therefore, you should understand in advance how to use the battery of an electric screwdriver so that it retains its performance and initial performance as long as possible. It will also not be superfluous to know how to check the condition of the battery and, if necessary, reanimate it with improvised means.

How to disassemble the battery

If the battery malfunction is revealed, it is necessary to proceed to the detection of faulty cans. All cells rarely fail at the same time, and one or more lagging cans are enough to create problems. Therefore, repair of batteries for an electric screwdriver must be started with the analysis of the battery and extracting cells. You do not need to disconnect them yet.

The disassembly procedure depends on the construction of the case. Somewhere it will be necessary to squeeze the latches, somewhere to unscrew screws or screws. After removing the lid, it is necessary to pull out the battery elements.

Banks of the battery extracted from the corps.

Before sorting through the battery, it is necessary to exercise visual control of each cell. If among them there are swollen, mechanically damaged, with traces of drones of electrolyte or corrosion, such banks without hesitation must be marked as failed. Do not restore them.

The rest of the elements should measure the voltage. If it does not correspond to the face value (or even below the lower limit), the bank should try to charge. To disconnect the battery and in this case it is not necessary.

Charging a separate cell.

To do this, a voltage source with an adjustable output will be needed. If it was not possible to charge, the bank is rejected. The elements that managed to bring to the face value must be separately checked for the container and current delivery according to the method specified above. If the bank does not hold charging or does not give out sufficient current, it is married.

Important! Put the charge of the ion-ion cans with a disabled balancing board. It can interpret the deep discharge, like a malfunction, and block the element.

Testing a single element for a container and current.

Artificial respiration for batteries of electric screwdriver.

Everyone knows from the advantages of a battery tool.Fortunately, the manufacturer now does everything almost everything Soon, the batteries will appear.But with all the pink and fluffy of the battery tool, their shortcomings were not passed by.Well, all there are effects of memory and a different attitude to cold, these are all flowers.Berries are the aging of the components of the battery.And it doesn’t matter what platform the battery has Nica, Nimh or Li Each of the systems suffers from failure of the cans.The reasons for each system has its own and if the archaic cadmium is born to die, and no matter how carefully you relate to the battery, it will die).The same lithium dies from the wrong charge and from the failure of the controller.There are not so many LI tools boast of dwelling batteries and charging, where the charge goes well but not the essence.You will protect the battery or not, it is aging.Alas, since the battery cannot consist of one single element, then the reliability of the battery will decrease with an increase in the number of elements.As it is difficult to find two by 100% of the same things, and among the cans are the same.The battery consists of, for example, of 10 cans, then there will certainly be banks of the best and worst quality, which will affect the life of the battery during operation.

If you go down to specifics, there are NIMH batteries well, specifically Bosch 12V 2.6ah.

Each such animal is worth 70 And at some stage you realize that it is not profitable to buy new batteries every 3 years And the carcass of electric screwdriver categorically refuses to die)

It’s no secret to anyone that batteries can be restored.You charge a whole battery, disassemble, measure the voltage of each can Those banks that do not correspond to the desired voltage, new ones are put in their place.

Previously, when without any problems you could order and buy at the place of the jar, then he did so.Alas now.It is very difficult to buy banks And all the more good banks.For example, Panasonic jars in retail FIG buy.And sold all sorts of minomoto with declared 3.0AH 4 per bank, but in fact not even 1.5AH I somehow do not want to put not only do not correspond to the container, but other banks in the battery also kill during operation.And in any case, the diagnosis of the battery by voltage, this is only half.Hearted diagnostics.It does not give an idea of ​​the capacity.

Of course, you can hand over batteries to the company, they will be cut.It is also not for nothing that is not for nothing 50 for a similar battery with a guarantee of 1-3 months.Place Panasonic banks.

Well, I don’t know It seems to me better than 70 for a new one than 50 for Rebild.

In general, once again I rested on the fact that it was time to engage in batteries.

And I want to offer my poverty option.Of course, no miracle will happen, in the sense that there was a killed battery They waved a wand, without spending a ruble, received a new battery.Of course not.Just a way to rejuvenate batteries, where only time from costs.Of the minuses, this is that the battery will need to be torn off Carefully and then boil, or solder.But what is there, peasants.You will need charging, smart single.Channel like aimax or four.Channel (in my case).Since SC sizes can not be applied to exercise, and the charging procedure of 24 cans will be delayed far from one day, adapters did.Turned the woodcocks, cut off the caps from ordinary batteries.

To what voltage can the battery be discharged

There is a concept of a fully discharged battery with the aim of conducting further operations and discharged to zero, which requires resuscitation. To how much volt to discharge the battery, depends on the type of model and the number of cans in the battery. The connection of the cells is consistent, the voltage on the output terminals is summarized. Therefore, the limit of discharge is different for acidic, alkaline, lithium battery.

Do I need to completely discharge a new battery? Yes, if it is nickel-ion or nickel-metallogid type. Such batteries have a memory effect. Before starting work, they need to be completely discharged 3-5 times, then charge. Subsequently, any charging batteries of this type should be carried out after complete discharge. Only completely discharged storage is removed for storage. How much can be discharged nickel batteries? An element for training is brought to c. Knowing the number of cells, you can calculate yourself, to how many volts to discharge the battery.

They often ask if it is necessary to discharge a new lithium-ion battery. There is no memory effect in this type of galvanic elements. The device works stable at an average charge level. Therefore, you can charge the battery at any convenient moment with a special charger. Is it possible to discharge a lithium-ion battery completely? It is possible, but after discharge below 3.2 V, special charging techniques will be used, at 2.0 to the element cannot be restored. Usually 2.5 V for a cell is considered a deep discharge.

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To how many volts can be discharged cans of a lead-acid battery? With a decrease in voltage at the outputs of a cell of 1.70 V, a total voltage on a battery of 6 elements will be 10.3 V. A minimum reserve of survivability will remain on a fully discharged battery. Is it necessary to completely discharge an acid battery? Undered calcium car battery can deteriorate even after one deep discharge. All acid batteries after a deep discharge certainly lose part of the container as a result of the sulfation of the plates.

Different types of batteries require a variable approach to maintenance. Therefore, whether it is necessary to completely discharge the battery, new or in the process of calibration and testing, is written in the instructions for the operation of the device.

Electric screwdriver batteries are rapidly discharged

Hello! Shurik Makita 6281DWPE (14.4 Volta), bought in January 12 g. I do not use it very often, but not too rare. You take to work after a short break. And the batteries are discharged! You put it on charging, charges very quickly and is just as quickly discharged during operation! I thought out with red indication on the charge (charged the battery) to remove the AKK and immediately put it in the charge again. Device. Charging begins again; so several times, and then you work with this account longer (is it possible to do so?). What is the reason? The previous Bosch GSR-12V did not have such problems: for three years he plowed properly, and then a couple of years according to the descending capacity of the batteries. And the charge after each charge of the batteries kept at least a month. Makita shit or only I was unlucky?

How to Repair Electric Screwdriver

Bondmich wrote: only I was unlucky?

Bondmich wrote: Makita shit or only I was unlucky

I have this Shurik since 2010 no complaints. Two friends have the same model, I did not hear complaints from them. You were unlucky.

Bondmich wrote: take out Akk and immediately put it in the charge again. Device. Charging begins again; so several times, and then you work with this account longer (is it possible to do so?).

For NI-CD batteries, in no case can you interrupt the charge process. It is necessary to wait until complete charging (green light). You stepped on the rake “Memory Effect”. Some attacked them, including me, but I showed a different extreme. Discharged in 0. We will pay for new batteries for experience. A lot has been written about the use of batteries of different types. It happens. Do not part. Good luck!

I would start by measuring the voltage of the end of the charge, at what voltage of the gag is turned off, maybe it simply does not fail the batteries. Since I bought home a radiotelephone for replacement, there was another situation, but the meaning is clear. I charge the phone, but it is very quickly discharged, the voltage is normal, the batteries are new, I measured the voltage of the tube, about 2.6-2.7 Volta (2 cadmium batteries), temporarily drank the old phone, and threw it on the shelf, took out three years later (in the old, the battery died again), disassembled it, changed the referens of the battery voltage measurement, exhibited 0.95 volts to the bank, for a year now I have been using the batteries that have come to it (before that 3 years were in the table).

In addition, if this happens only with one battery, then you most likely came across a dead bank in the battery, it quickly goes into the reinforcement and an electric screwdriver stops twisting.

Bondmich wrote: the previous Bosch GSR-12V did not have such problems: he plowed for three years regularly, and then a couple of years according to the descending capacity of the batteries.

By the way, I still use the old Metabo Rolmax 4.8 Volta. A year ago I replaced batteries, put the best that is on the market. It feels ambiguously, the old ones were already quickly sitting down, but so far they worked, they kept it well, the new ones work longer, but they pull worse, apparently more internal resistance than their relatives. A friend in the market said that the batteries in the kit are better than we can buy a battery in the kit.

In general, we begin everything with stress measurements, and ideally attribute to the market to those who are engaged in replacing batteries, they sometimes have devices for measuring the container, everything will become clear with it.

How to quickly discharge the battery

How much to discharge the battery with ordinary loads is known-for about 7-10 hours if the battery is fully charged. But how can you quickly discharge the battery of a car or electronic equipment?

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The battery in a laptop or tablet can be quickly discharged by a natural load using games, watching musical and video programs. The more applications work, the more actively the battery loses energy. You can use the program “Fast category”. The essence of her work is that she herself will launch energy.Intensive applications, devastating the battery.

You can connect a flashlight to the battery requiring discharge. The result will not make you wait long. But if the assembly is installed in the housing of an electric screwdriver, so as not to violate the connections, you can use the load in the form of incandescent bulbs equal to the voltage of the battery. In this case, the batteries need to be removed, disconnected from the device, collect the diagram, as shown in the photo.

Do you need additional efforts and devices to quickly plant a car battery? It is enough if the headlights, music center or air conditioner are included in the on.Board system. Energoing devices will quickly take energy in a stopped car. But after deep voltage planting, it is urgent to put the battery on network charging.

Why do you need to do this

As already mentioned, a lot depends on what kind of battery is in an electric screwdriver. If we are talking about more modern and expensive lithium batteries, they will not be specially discharged. It will be enough if you just take out a battery block from the tool and leave it for several days. Lithium-ion battery easily discharged themselves. As for nickel-cadmium elements, they will have to tinker with them a little longer.

The fact is that this particular type of battery has the so.Called “memory effect”. For example, if you charge the battery by 60 percent, and not by 100 (it often happens when an urgent recharging and continuation of work is required), at the next cycle, nickel-cadmium batteries will “think” about 60 percent as a full charge and work accordingly, not in full force. Thus, they will not fully use the resource of their real capacity. If this “memory effect” is not removed, not to “erase”, the productivity of the tool will significantly decrease. It is possible to remove the “memory effect” that has arisen only if the battery is completely discharged.

Capacitor Safety. How to Discharge Capacitors Safely

The full discharge of the battery may be needed if it is planned to restore the battery of an electrical screwdriver. In order to find out how many “cans” it works poorly and which of them needs to be replaced. But most often it is required precisely because of the features of the work of the “cadmium” elements.

This is interesting: how to charge lithium-ion batteries: rules for proper use and charging

If an electric screwdriver does not charge. What to do?

In previous sections, we examined the specifics of the operation of certain nutrition elements for screwdrivers. This information is important to understand how the optimal indicators of the tool can be restored if the battery “sits”.

As it is already clear, most often the reason lies in the wrong approach to the charging process of a particular battery and the features of its storage. But what can be done if the battery of an electric screwdriver is not charged, and the operating conditions of the elements themselves were performed correctly?

First of all, check the contacts between the accumulates of the battery of your tool and charger: often the charge current goes badly, or does not go even because of weak contact. If so, the way out is quite simple: carefully disassemble the charger and bent his terminals.

Oxidation and entering the charger of dirt and dust can also cause why the battery is not charged. The main signs of this, as a rule, are reducing the time of the charge process and the operation of the electrical screwdriver itself. All that needs to be done so that this does not happen is to monitor the purity of contacts and wipe them.

It should once again be mentioned such an opportunity as the bulkhead of the battery block, the result of which can be either a complete replacement or a partial replacement of failed batteries with workers. With the full replacement of the block, you can completely charge the battery, and then use it before the category. And if a partial replacement of elements is made, it is necessary to “level” the charge level, “pumping” the assembled battery block 2-3 times according to the full cycle.

Read about the restoration of the battery of an electric screwdriver here →

If a master who regularly uses an electric screwdriver neatly treats the instrument itself and knows the features of different nutritional elements, it can easily find the reason why the batteries “sit down” or does not take charge of charge. Therefore, it is so important to possess basic knowledge of both the power tool itself and about those nutrition elements that are installed in it.

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