How much to charge the battery of an electric screwdriver

If you have become the happy owner of an electronic cigarette, then you probably may have a question how to charge it correctly and if there are any nuances. In this article we will answer all your questions.

The battery is the most important component of an electronic cigarette. It is this element that determines the life of the entire device. Therefore, if you want to extend the life of your device, you should take the battery charge as responsibly as possible.

Battery characteristics for electric screwdriver

Energy sources are performed for almost all models in a single standard. But still they have a slight difference in the design. Also, the battery is distinguishable in voltage and capacitance. It should be remembered that the higher the container, the longer the battery can not be charged.

The battery for electric screwdriver is made in the form of a large rectangle, but there are also round samples, for example, from Bosh (Bosch). Such devices are the most convenient and their handle does not look very bulky.

In addition, it does not interfere and you can climb into the most inaccessible place.

  • Stress 9.6. 12. 14.4 volts.
  • Capacity from 1200 mah and above.
  • Country Manufacturer: China, Russia, Japan, USA.
  • Black colour.
  • Type nickel cadmium.
  • The number of charging cycles. 500 times.
  • Form: rectangular, oval.

Reactivate faulty rechargeable battery of Black Decker Drill by using a dry cell

Replacing cans is complete or partial

If the screw of the screwdriver “rally” failed to restore the battery, you will have to change the batteries. Any battery of a screwdriver is a chain of sequentially connected batteries. With this type of connection when “subsided” one element, the entire battery has a reduced charge and quickly discharges. Over, the characteristics deteriorate as much as the most faulty bank “sank”.

How to restore the battery of an electric screwdriver: complete or partial replacement of cans

So you can restore the battery in two ways. The first is to find the same “sagging” elements and replace them. The second is to change “everything in a skew”. The second option is more invoice for money, but more “long.Playing”. In the first option, the rest, while working banks, will soon also pass. It will be necessary to repair the battery again. So it is desirable to choose the second method.

Popular selection of battery

On sale there are batteries of various manufacturers, their assortment is significant, so it makes sense to dwell only on some of the most acquired.

“Bosh” 10.8 (lithium-ion) with a capacity of 1.3 a/hour. Voltage. 10.8 V. Small dimensions. 110 x 54 x 52. Warranty period. 1 year. Quite suitable for an electrical screwdriver of medium power.

A similar model for 12 V (with a capacity of 2.6 a/hour) will cost about 500 more.

“Bort” (nickel-kadmieva) at 12 V (1.3 a/hour) costs about 745.

12-volt “Hitachi” costs more than the same type of battery. For example,

Russian.Made batteries are much cheaper. From 700 (at a slight voltage). For example, the series “Craton”, “Zakb”. But this does not mean at all that they are worse than foreign analogues. Do not forget that the final price of any products includes not only transport costs, but also the “brand cost”, its “promotion”.

Divide all available batteries for screwdrivers into “good” and “bad”. How long they last, largely depends on the accuracy of their use and compliance with all the manufacturer’s instructions in terms of storage and operation.

Repair and replacement of battery components

When carrying out the procedure in another, more effective way to restore the operability of the battery, is to replace the failed elements with good. However, for this purpose it will be necessary to purchase new banks or take them from another working battery. At the same time, it is extremely important that the dimensions, as well as the electrical characteristics and the type of introduced elements coincide with the initially installed.

The procedure is carried out by cutting old and plowing new elements into a chain. This will require the following elementary set of necessary consumables and tools:

What to do if the charge does not go

If there is no battery charge, there may be the following reasons:

  • Charger malfunction.
  • Lack of contact of the battery with a charger.
  • Protection sensor malfunction.
  • The residual capacity is very small.
  • Malfunction of individual elements of the battery.

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Cordless Electric Drill Repair | Replaced 5S 21V 20A 18650 BMS Charging Protection Board Part-1

The serviceability of the charger can be checked with a voltmeter or other battery.

Batteries and charging devices have 3 contacts or more. Additional contacts provide connection with the sensor (m) of protection located in the battery. In nickel elements, this is a thermal. If the battery reaches a temperature above 40 50 °. Then the thermal switch turns off the charger. The thermal measure must be in a closed state. If it is opening all the time, this is a sign of a malfunction. You can clin the contact “T” to “minus” batteries and charging without protection against overheating. But it will be necessary to control the temperature of the battery and disable it if the temperature is above 40 about. Lithium may have an integral scheme with many protection elements. They control not only the temperature of the elements, but also the degree of charge of each.

The malfunction of a separate element is detected by voltage of the charged battery. Even a battery has a capacity of the battery to a nominal voltage. If the rated voltage corresponds, then all elements have some kind of container and give out a voltage close to the nominal. Conduct training cycles: if the container increases, then the battery is restored. Continue training cycles until the time of charge and discharge ceases to increase.

Когда напряжение заряженной батареи меньше на величину, кратную напряжению 1 элемента, есть большая вероятность выхода из строя отдельных элементов питания, из которых она собрана. The battery is disassembled and tested by each element. Faulty are removed, and in place they are soldered in good. Their two faulty batteries can be assembled one of the remaining good elements.

Features of charging screws of screwdrivers

A very important point is the first charging of an electric screwdriver, since it depends on it whether the full charge capacity will be activated. Each type of battery has its own characteristics of primary recharging. The greatest difficulty is charging nickel-cadmium options. Their first recharging should be three times so that the entire charge capacity is filled. Thus, after the purchase, the unit needs to be completely charged, then turned on and left to work until it is completely discharged, then you need to put it back again and discharge again, and so 3 times.

The nickel-metallhydrid version should be completely discharged for the first time, because, as a rule, when buying, such a battery has a small charge, after that you need to leave it completely. Repeatedly charger accumulators of this type only after they are completely discharged. The cycle of full charge-discharge should be taken into account the first 4-5 times, after which you can additionally recharge the batteries, even if they are not completely discharged.

The lithium-ion batteries are more modern, so there are no special requirements for their recharging, since in any case their capacity does not decrease.

At the first and subsequent recharging, it should be borne in mind that the most optimal recharge effect can be achieved only if this process takes place at a temperature of 10 to 30 ° C. Among other things, it should be noted that when charging, some types of batteries may begin to heat up, which can extremely negatively affect the entire battery. Do not allow overheating of the entire battery above 50 ° C. After work, it is best to store the battery separately from an electric screwdriver, although this is not necessarily.

How much lithium battery lives?

Often, manufacturers install the bar in 3000 cycles. However, few know that the duration of the battery can be increased.

The large charge current saves time, but at the same time the battery is warming more. In some cases, you can charge the battery from an electric screwdriver using a car charger. It should be remembered that car charging gives a voltage of 12 volts. Therefore, and only 12-volt screwdrivers can be charged with them.

And how much battery batteries need to be charged after purchasing?

When buying a new device, the charging was half carried out, and therefore the first three times you need to completely discharge the device, until it is completely turned off, and then charge it at full power for about 12 hours, following the imposed instruction from the manufacturer. The battery is fully charged in 3-4 hours, and in the following time it is recharging with a slow current to the full limit. After three full reloading cycles, the device is included in the operating mode, and there is no need to wait for its full discharge or charge.

Online calculation of battery charging on our website will help you get the necessary result very quickly, which will tell each user how much batteries need to charge, so that they operate uninterruptedly for a long time.

In the winter period, the topics associated with the batteries of the car are especially relevant, because the cold start can quickly discharge it. Many change old batteries (simply handing them over to buyers), buy new ones (the main thing is to choose the right polarity). However, most tries to recharge them and use them further. Fortunately, modern batteries have been going on for a long time (about 4 to 5 years), but this period can be much reduced! If you give the current incorrectly and calculate the wrong charge time, then the battery can quickly fail. Therefore, today detailed information. How much time you need to exercise your battery.

  • The principle of operation of the battery
  • Two buildings of batteries
  • Preparation of the battery
  • Charge time
  • Charge time by constant voltage
  • So still, how much time is on the battery 55, 60, 75. 100 am/h?

I immediately want to make a reservation. To charge the car battery with a special charger at home, at a approximate temperature of 25 degrees Celsius, this is important, because if the temperature exceeds 35 degrees, then the process is better not to start (here the dependence of the temperature of the electrolyte and the surrounding air)! The thing is that the electrolyte has a different density at different temperatures (by the way, you can see how much it is in various batteries). However, I propose to recall the principles of charge and category.

In order to charge it, you need to understand how it works. No now I will not decompose it into various components, everyone already knows that inside lead plates in a special solution of sulfuric acid. We need to understand what is, for example. 55 amperes/hour and 12 volts.
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  • Amperes and watches. The battery capacity is measured in amperes/watch. That is, if your battery (battery) is 60 am/h, then it can give 60 amperes within one hour. Accordingly, if the load falls, for example, up to 30a, then it can give for two hours and so on. I think this is understandable.
  • Stress. It is generally accepted that the voltage is 12 volts, although this is not entirely correct. The normal value of the working version is 12.6. 12.7V (there are options with large), this is 100% fully charged.

If the voltage is 12V, then it can be stated that the category of batteries is approximately 40. 50%, but with such indicators you can ride! If your car is working and the generator gives normal “charging”, then the voltage will quickly recover. I also want to note that the indicator of 11.5. 11.6V speaks of “deep category”, it is very “unpleasant” for the battery. The process of “sulfate” of lead plates begins, which simply reduces the battery capacity. Maybe so that the car simply cannot start.

That is, we realized that normal indicators of 12.7V (charged), with such a voltage, 60 amperes will be given within an hour, and then it will fall to 11.6V (discharged). Then charging and re.Operation.

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This is also an important line, the whole point is what to charge each type, you need to prepare in different ways, or rather prepare for the charge process. SO:

The first type is the so.Called inconsistent batteries. Which has an electrolyte inside and it is, as it were, “sealed” inside, that is, he cannot evaporate. If it turns into steam, then condenses on the walls and falls into the main electroly. This is the most trouble.Free type. No need to clog your head with a level of level, density, etc.D.

The second type. (which is the past). Serviced. He does not have a sealed case, so the electrolyte (or rather water from it) can evaporate, thereby lowering the level. This option is one of the most problematic, you need to be able to care and charge it! For example, if the level is lowered, the charging is underfundable to be carried out! We need proper preparation.

Before you charge the battery, it must be correctly prepared, because if you remove it, you need to check everything at once. How I wrote from above, it will be a question of the serviced battery.

  • First you need to remove all condensate, oxide and dirt from the surface and contacts. To do this, we just take a regular rag, get it in a solution of ordinary soda and wipe the upper part. Contacts. Thus, we achieve cleanliness. This is important! After all, if your battery has unscrewed covers from above, then dirt can get into them when dismantling. Which is extremely not desirable! After all, it can be the reason for the failure of the battery by just trapping the banks.
  • You can unscrew the lids. We check the level of electrolyte, if it is extremely low. Does not close the plates, then it is necessary. Be sure to add distilled water. Otherwise, just “kill” your battery. Lead plates are heated and crumpled.
  • Ideally, the density of the electrolyte should be measured. Let me remind you for a working, normal battery, it is. 1.26. 1.30 g/cm3.

I think you should not explain that you connect the minus terminal of the battery to the minus of the “charger” with the plus exactly the same. Many adhere to this particular option, because the “amperazh” which we serve a very important parameter to the battery. It cannot be exceeded in any case, and if it is highly underestimated, the battery will be charged for a long time.

I also want to warn that the voltage should be larger than the nominal. That is, from the charger we get about 13.8. 14V, about the same even a car generator. Only then will the charge will go, if the voltage is less than 12 (and even more so 11v), then nothing will happen, but most likely it will aggravate the discharge even more.

So: the voltage of 10% of the total battery capacity is considered optimal, that is, if you have 75 AM/h, then you need to charge with a current of 7.5a.

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