Why may not be charged with an electric screwdriver battery
Over the past decades, the battery tool conquered from the usual network power tool even those niches where the dominance of traditional equipment seemed unshakable. Even shock drills are available with food from portable batteries, not to mention ordinary screwdrivers. Despite the overall high reliability of the battery tool, the nutrition elements are still the weakest, as well as, to a certain extent, chargers for them. Having discovered that the battery of a portable electric screwdriver is not charged, it is necessary to localize the malfunction and decide on the repair or replacement of the faulty unit.
The most common reasons for the failure of the batteries include:
- corrosion and oxidation of contacts due to storage in high humidity conditions;
- deep discharge due to prolonged non.use;
- development of the resource of the charge-discharge cycles;
- The lithium-ion batteries may fail the internal control scheme;
- a large loss of container due to the “memory effect” of the battery prone to such a phenomenon;
- drying of electrolyte during prolonged operation or storage;
- mechanical damage (including internal) due to blows on the battery body.
Chargers often lose their performance due to:
- corrosion and oxidation of contacts caused by the same causes;
- hidden cliff of the network cord (most often near the case or fork);
- failure of internal components;
- bent contacts due to mechanical exposure.
To make a decision on an attempt to restore the performance of the nutrition elements and the charge of replenishing the charge, it is important to determine the true cause of the malfunction.
Battery Drill Drill DEKO 12V GCD12DU3 SET 3-Li-Ion in the case of equipment 13 pcs, 32nm, 2×1.5Ach, salary. review
Hello, dear friends! My name is. Alexander. Feel free to ask questions that have arisen, I will try to answer everyone, though with a reservation. As you busy!
Only today I thought: how to choose a battery drill shurupert? I will answer about this at the end of the review.
Today, the conversation will be about the batteries of the DEKO 12B GCD12DU3 SET 3-Li-Ion in the case of the equipment 13 pcs, 32nm, 2×1.5Ach, salary, which can be ordered and selected here.
Battery Drill Shurovyrt, made of black material with a yellow trigger switch of the operating mode of operation. Has two Li-Ion batteries of one and a half ampere-hour each.
The batteries of the DEKO battery, is in a black plastic case and equipped with two yellow latches, while there are no complaints about the latches, they close and open normally.
The case does not have, any partitions and a battery drill with an additional battery, a charger, are in it in an unsettled state! You have to come up with something to soften blows and movements when carrying!
It is difficult to put something on the case, except for the package with additional drills and taps of not large sizes.
The battery drill-shurupery is equipped with a bright backlighting of the working area, which lights up with a slight touch of the trigger. By the way, the trigger is made of yellow plastic. The light indication green-yellow-red also lights up, when working, like a traffic light. (Cm. In the photo from below, above the yellow trigger).
The battery is inserted into the handle of the drill, which is a dignity. very convenient, true. is pulled out with some difficulties!
The battery drill-shurupert, has two rotation speeds (the mechanism of speed switching in the lower photo. yellow color).
DEKO DKCD Series Compact Cordless Drill Electric Screwdriver Rechargeable Driver DC Lithium-Ion
Li-Ion Battery is equipped with a green LED, which lights up at the end of the charge and red. informs about the start of the charge.
The discussion is approaching the final phase, I have to only warn you that the decision. Buy or not, battery Drill DEKO 12V GCD12DU3 SET 3-Li-Ion in the case of equipment 13 pcs, 32nm, 2×1.5Ach, salary. accept only you, and I have already made my choice and shared with you!
Dear friends, I promised to write to you how to choose a battery drill shurupert? I will answer like this:
First of all, according to the manufacturer. Preference, almost always, are selected by the batteries of well.known brands, I will not list, so as not to make free advertising;
P.S.:. Ozon employees openly refuse to pay me money for low.quality goods!
Dear friends, I present to your attention a selective list of my works:
Battery Drill Drum Deco GCD12DU3 Li-Ion Set 4 in the case of equipment 13 pcs, 32 nm, 2×2 a/h. review
Hello, dear friends! Allow me, before starting my work, introduce myself. My name is Alexander. Feel free to ask questions, I will answer them with pleasure, though if there is free time.
Recently, on sale, you can find a huge number of batteries-scourges-sprayers! How to figure it out? Which is better? Everyone praises his acquisition and in his own way, will be right!
At the end of the review, I will leave links to the batteries I have purchased, and for now we will begin to discuss
In less than a week, I became a happy owner under the marvelous name:
The batteries of the DEKO GCD12DU3 Li-Ion Set 4 in the case of the equipment 13 pcs, 32 nm, 2×2 a/h, which you purchased here and here you can choose the appropriate electrical screwdriver in the case.
A plastic case, equipped with two yellow plastic latches, which so far open and close clearly, without “jamming”.
I really admit that the very first opening of the case, all the contents simply fell out, which is not very pleasant! The manufacturer could be worried and equip the case with additional partitions? At least from cardboard! Maybe I’m finding fault, but this is my opinion.
During the charge, the red LED lights up on the battery and at the end of the charge. The green LED lights up.
Unfortunately, Chinese manufacturers have not yet thought of how to equip the battery with one LED, which changes its color depending on changes in the voltage of the battery.
Such batteries are already produced by Chinese manufacturers, but under a different brand! Of course, I will try to publish these works, but so far they are in the stage of projects!
The charge time of one battery is about an hour and a half, which is acceptable with such a capacity!
Battering Drill Electric screwdriver Deko DKCD12FU-LI. review
I purchased an electric screwdriver in 2020 to help a more expensive branded screwdriver Bosch GSR 180. And I can say that I was not at all disappointed. Before buying, a new Chinese brand was a little afraid, before that he managed to purchase a laser level under the Deko brand, was very pleased with the quality and functionality, and therefore decided to further trust this brand and acquired the DKCD12FU-LI electric screwdriver of the DKCD12FU-LI
DEKO products are produced by Zirtek founded in the Czech Republic, but production is located in several countries. China, Russia, Hungary, Croatia. The electric screwdriver of this model is supplied in various trim levels. I purchased a set with a case, two batteries, a charger and a set of tools.
In general, as it turned out later, the case. only takes a place, never once used it. A set of tools, namely a set of bit and drills of rather low quality. The drill is soft, suitable only for working with wood. The drill is so soft that they can even be bent. If anyone does not know, then a normal drill from high.speed or instrumental steel. does not bother, but breaks with great effort, but it is quite solid and wear.resistant.
There was also a plastic box with a set of nails, dowels, bots and screws of some goals complete with an electric screwdriver. I immediately threw all this, since in the set lay such a poor and unnecessary trash that I would never use.
If you rarely use an electric screwdriver, then most likely it will be convenient to store in the case, but for two years I have been using it almost every day, and therefore I forgot about the case. I got it only now for a photo shoot. The fact that electric screwdriver has been operating with almost daily use for two years, he says about a good quality of the model itself.
The steady torque at 28 N m most likely does not correspond to reality, according to the sensations, the real torque is about 20 n m. When the torque exceeds the torque, the engine of an electric screwdriver simply stops, goes into defense of the flow, such a stop greatly discharges the battery. During the start of the engine, as well as during the exceeding the maximum moment, the engine experiences an extreme load, with a stopped rotor, the current strength in the winding strives for a short circuit current, and therefore there is a strong discharge of the battery. But the excess of the moment occurs quite rarely and you can even intuitively feel that the screwdriver is difficult and it was time to reduce the load.
The capacity of the lithium-ion battery as stated by the manufacturer is 2000 MAH in my opinion is also a little high, but it’s hard to say for sure, you need to measure. In principle, one battery is enough for 25-40 minutes of continuous work. At first, one battery from my kit was very quickly discharged, then it somehow began to work longer.
The battery size is standard for Chinese screwdrivers, now there are many models on sale from other manufacturers with the same battery. The battery voltage is 12 volts.
Charging nest for a 5 millimeter plug, such as old Nokia. By the way, this charger approaches other devices, for example, to the projector and laser level of DEKO.
On the sides of the battery there are latches, securely attaching the battery to the screwdriver, by clicking on the latches, you can easily remove the battery for replacing or charging.
The charger is very compact. I don’t know how good it is that it looks like charging for a mobile phone, but I like its compactness, does not take up place, like other zhu for screwdrivers. But with such compact dimensions, the charger cannot issue a large charging current due to which it charges with small current and, accordingly, for a long time. There is an indication of the charge on the ZU, when the battery is charged. The bulb burns red when the battery is charged. Green.
There is no information about the current and output voltage on the ZU, only the frequency and value of the input voltage are 110-240 V/50-60 Hz. Judging by the time of charging of one battery, which is about two hours (although the passport is announced at 1 hour), we can conclude that the power supply issues about 1 amperes for charging the battery.
Fast.raised cartridge with a plastic case. Maximum clip diameter up to 11 mm, although according to the passport. 10mm. The cartridge is perfectly clamping, does not jam, does not beat when rotation, it is easy to unclench and squeeze the tool.
This model has two speed modes. 1st reduced control range 0-350 rpm and 2nd increased with a range of 0-1350 rpm. You can change the speed using a switch located the upper part of the electrical screwdriver.
What can you assemble a power supply
The power supply for charging electric screwdriver can be made according to various schemes. It all depends on the qualifications, the availability of devices and available materials.
From a computer BP
A good power supply for an electric screwdriver with a voltage of 12 V can be obtained from a BP for a computer. First you need to check whether it is suitable for parameters.
In the above example, the BP has two 12-volt channels-at 11 A and 13 A. Each channel is enough to power the selected power tool for 12 volts. On the Internet you can find tips on the parallel connection of the channels until the total current is obtained (in the given case. 24 A). It is not recommended to do this, because due to the difference in stresses, one channel can become a consumer for another. All the risk of choosing the owner. A loop of wires comes out from the power supply. Everything must be cut except:
Sometimes you need to leave a red wire. some schemes require the basic load. To do this, between red and any black, you need to connect a 12.volt light bulb. If in its absence the PSU does not turn off, then it can be removed. The green wire must be connected to any black. And 12 volts remove from yellow and black (any) conductors.
From the transformer
If there is a suitable transformer, you can build a power source on it. The general scheme of an unstabilized power source is shown in the figure. Such a device consists of:
If there is a ready.made industrial transformer, you need to find his data according to the directory. If they arrange, BP can be assembled on it. If not, it can be redone by first checking its suitability for work in the required conditions. The suitability of the transformer is determined by its power. If you set the output current of 10 A, a voltage of 14 V and the efficiency of the system (from the transformer to the output shaft of an electric screwdriver) equal to 0.5, then a transformer with a power of P = 10 A14 V/0.5 = 280 W is required (you can round up to 300 watts ).
To determine the power of the transformer by iron, you need to find the area of the cross.section of its core in centimeters (in most cases you can remove the dimensions without disassembly). The resulting area in square centimeters SC must be substituted in the formula:
If the result is exceeds 300 W, the transformer is suitable for the manufacture of a power supply. Next, you need to remove all secondary windings and wind up a new. The number of turns can be determined experimentally. To do this, you need to wind any known number of turns with any wire and measure the output voltage. Suppose, having wound 10 turns, the output is 5 volts. So, one volt has two turns, and to obtain 14 volts you need to wind 28 turns. For 10 ampers, the cross.section of the wire must be at least 2.5 kV.mm, this corresponds to a thickness of 1.8 mm.
After the manufacture of the transformer, you need to choose diodes capable of working at the selected current. They must be put on radiators. And the last is to install a smoothing capacitor. It should be designed for a voltage of at least 25 volts and have a capacity of 4000-10000 μF (more can increase, but the dimensions will increase). For such tasks, the transformer power supply is quite bulky and heavy.
It can be supplemented with a voltage stabilizer, then it will maintain torque at any load (but this is not necessary. after all, in the normal mode, the batteries also sit at a large current).
You can assemble a stabilizer on an integrated chip of the 78xx series (79xx for a negative shoulder), destroying it with an external transistor.
Important! The linear stabilizer works with a certain exceeding the input voltage before the output, so in this case you will need a transformer with an output voltage 17.18 volts. The overall power should also be increased. the total efficiency of the scheme will decrease. This must be taken into account when selecting or manufacturing.
The finished source must be placed in the case. It can be done on your own or pick it up with ready.
From the laptop
A good result can be obtained by applying the side of the power from the laptop. Such devices are designed for the output voltage of 19 volts and for various load currents. You can choose source that issues a current up to 6 amperes, this is enough for most homework. You should not overload such source. the protection will work or the self.healing fuse at the input will turn off (it is not always restored independently, and you have to replace it).
To power an electric screwdriver, you can use adjustable and unregulated DC power sources used, for example, in laboratories. Their advantage is that the output voltage can be adjusted and installed, depending on the power tool model, both 12 V and 18 V. The problem is that it is difficult to find a laboratory voltage source designed for an output current 10 A. So, the block presented in the photo for each channel has a current limitation of a slightly more than 3 A. The voltage is about zero, so the electric screwdriver will not be able to work in this mode. At best, this power supply will provide an idle power tool.
The best option is the impulse power source. light, compact, does not contain a powerful heavy transformer due to the fact that the transformation of the voltage level occurs at a higher frequency. The disadvantage of such a solution is a complex circuitry. To make a pulsor with your own hands, a certain qualification will be required.
Is it worth it to charge before long.term storage?
If the device is not used for a long time, you should correctly approach its storage in order to prevent damage to the batteries.
Nickel-cadmium batteries are discharged before storage, but not completely, but partially, before a decrease in power. Before operation, they are completely discharged and charged at least three times.
Nickel-metallological batteries are stored completely charged, and before starting to work as a tool, they are kept on charging for at least a day. After the device passes 200-300 ditches of the group, its capacity may partially decrease.
Lithium-ion batteries are prohibited to completely discharge-this leads to disconnecting the protective scheme. Store batteries filled up to 50 percent. The number of discharge and charging cycles is not limited, but their duration is no more than two years.
How to charge the Li-Ion screw of screwdriver and other important rules for its operation
- Li-Ion works optimally in the range from.10 to 45 ° C. Charge at a temperature of 10 to 30 ° C.
- 1 time every 4 months, carry out a full cycle of discharge-rack for calibrating the charge sensor in the battery controllers. That is, discharge to almost 100% and put for charging for 12 hours.
- Store Li-Ion on the charge of 40-60%. It is impossible to store charged by 100% Li-andi, since in this case it will forever lose 20% of the container in 3 months. With proper storage-with a charge of 40-60%-Li-Ion will irrevocably lose only 1% of the capacity in the same 3 months.
- If the screwdriver is equipped with two Li-Ion, then charge one up to 40-60% and store it as a backup. Use it as a worker once a month-charge it to 100%, discharge to 40-60% and leave again for storage. The second Li-Ion is the main worker. We have worked. at the end of each day, put it for recharging, even if it is discharged by less than 10%.
Reserve Li-Ion use if the main working Li-Ion is discharged as a result of intensive work and there is no time to wait for it to charge.
That’s all. Now you know how to charge Li-Ion battery for an electric screwdriver.
I handed this to every joiner, and I also hung ads in the workshop on the board.
And there may still be a question-why did I switch from Ni-CD to Li-Ion batteries?
Here are the advantages of LI-Ion batteries over NI-CD:
- at least 2 times a large specific container;
- self.discharge is several times less;
- lack of memory effect, which makes it possible to recall at any time;
- It withstands an average of twice as many “charge-discharge” cycles, that is, it will live twice as long.
- Li-Ion is subject to aging. Well, and ni-cd eternal or something? They also get old.
- Li-In has low stability when working at low temperatures. All this is in the past. Now Li-Ion is doing such that they work and.10 ° C Stopudovo. And in some sources it is indicated that with.30 ° C can work;
- Li-Ion require the use of only the original charger. Well, what is there? All screwdrivers are sold just with their original item in the kit.
- Li-ion has a high cost. Yes, I wouldn’t say anymore. Recently went to the store. Ni-CD batteries below 1 t.R. have not seen. And on AliExpress you can buy a whole electric screwdriver with Li-Ion for 3 tons.R.
Well, finally, if you work with an electric screwdriver professionally-do not hesitate especially-it will crumble at the same time with the Li-Ion battery. So buy a separate batter separately you do not have to.
Just with a reasonable non-edged use for a couple of years, an electric screwdriver should be enough.
And, yes, one more important rule. Do not save on the power of an electric screwdriver. It corresponds to the voltage of the battery. Take a 20-volt minimum. Will twist like a beast.
And buy weak. there will be little sense from it, and there will be no joy from penny savings either.
I generally scored screwdrivers with Li-Ion batteries at 25 volts. The joiners are not loud. Especially after Ni-CD for 14 volts.
Look like that’s it. There are questions left, do not agree with something-write to Комментарии и мнения владельцев.
Bosch IXO Cordless Lithium-Ion Screwdriver
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How to correctly charge a new battery for the first time and during training
How to charge a screwdriver for the first time after the purchase? Many manufacturers of screwdriver with lithium batteries (LI) recommend just completely charge the element before the first use. Few recommend performing 3 training cycles-the discharge-rack. In general, for lithium batteries, the training cycle will be useful.
Attention! For new nickel batteries and CD and MH, all manufacturers strongly recommend that the training cycle at least three times. And what is very important. first discharge, and then charge.
Unfortunately, none of the manufacturers writes, even Bosch, how to correctly discharge the battery during training cycles. Why this is important, has already been said above.
If the power tool with Ni-CD and Ni-MH batteries has protection against deep discharge, then they are discharged until the screwdriver is turned off. If there is no protection, then to the level of minimum voltage. This is 0.9 V for each power element in the battery.
The screwdriver on lithium batteries must be protected against deep discharge, but it will be useful to know that the minimum voltage should be at least 2.8 V. Below this threshold there is a destruction of lithium elements. Manufacturers are insured and set the shutdown boundary 3.2-3 in.
You can read more about the correct charging of screwdriver batteries in this article.
Summarizing all of the above in this article, we will outline the procedure for conducting training cycles, useful for the new battery. It is recommended to conduct such a cycle at least 1 time in 6 months, better more often.
- Dissolve the battery with a current of 0.1 from its container, or the current of a working tool without load. With alternating time and pauses for 3 minutes.
- Charge the battery until the charger is turned off.
- Wait 20-30 minutes.
- Charge again until the charger is turned off.
- Wait 20-30 minutes.
- Charge for the third time until the charger is turned off.
- Wait 20-30 minutes to stabilize voltage.
- Now discharge in the way described in p. one.
- Repeat pp. 1-8 to three times.
- Recharge or charge completely for storage taking into account the type of battery. If the tool is used in the near future, then charge completely until the charger is turned off.
Recommendations for charging batteries from manufacturers: Sturm (Ni-CD), Redverg (Li-Ion), Hammer (Ni-CD)
Storage rules for the battery of an electric screwdriver
Regardless of the type of power sources used, it is necessary to store an electric screwdriver in a dry and cool place (at a positive temperature). High humidity is harmful in that it causes corrosion of metal cases of elements, which ultimately causes the flow of electrolyte and damage to other elements and contacts of the battery. Also, increased water in the air adversely acts on the contacts of the power tool and on the winding of the electric motor.
If we talk only about batteries, then nickel-cadmium battery can be stored completely discharged. Lithium-ion and nickel-metallogids should be charged at least partially. About once a month, it is advisable to charge the batteries so that the batteries do not go into the deep discharge due to self.discharge. This applies more to NIMH batteries having a high current of self-discharge, and in a smaller one-to lithium-ion. Ni CD battery, if it has a residual charge, it is simply impossible to recharge-you need to make a category cycle in order to avoid loss of capacity. It is necessary to install the battery on an electric screwdriver, at idle (or load, if possible) to be discharged to the loss of revolutions, and complete loading. If the nickel-cadmium battery has been stored for a long time, then several full cycles of the charge may need to be restored to restore the container.
Correct handling of batteries of electric screwdriver can significantly extend its service life. But do not unconditionally trust the tips posted on the Internet. there are quite doubtful recommendations. It is better to independently understand the features of each design and relate to advice consciously.