What types of batteries are better for electric screwdriver

For portable power tools, batteries built on various basis are used. When buying a new electric screwdriver, regular batteries are used until their resource is completed. In this situation, the question will arise, and you will have to decide which battery is better to buy to continue the operation of an electric screwdriver.

For screwdrivers (and for most of the other portable power tool), mainly the following types of batteries are used:

Nickel-cadmium

Their main advantages are the ability to work at negative temperatures, a long working resource (in cycles of a charge-discharge), as well as a relatively low cost. The disadvantages include a pronounced “memory effect”. It consists in the fact that with an incomplete discharge, the element “remembers” the charge level and takes it as zero value. In this case, the actual capacity is reduced. This moment can be eliminated by the use of special charging modes. The second essential negative side of the nicd elements is toxic cadmium in them. No one has yet been poisoned when using such batteries, but when they are disposed of, there are problems of the environmental plan. Are also characterized by an increased level of self.Discharge. Now they are rarely used and only in old screwdrivers models.

Nickel-metallological

Called to replace nickel-cadmium elements. They do not create problems with the ecology, have energy intensity (the ratio of electric capacity to weight) is about 20% higher than that of Nicd. The effect of memory is much weaker. Of the disadvantages, a higher current of self-discharge during storage and a lower resource (up to 300 cycles of the charge-detachment) is noted). NIMH technologies are constantly being improved since the development of the first battery, and the possibilities of improving are far from exhausted.

Lithium-ionic

The most modern and progressive elements. Have the largest specific container. The memory effect is practically absent. The resource for cycles is a good charge-up to 800, but when stored even without use, durability decreases. Have a very low tendency to self.Discharge. At the same time, they are extremely sensitive to reloading and deep charge (you have to equip individual or group controllers). Lose the container at negative temperatures. Fire hazard (some types are prone to spontaneous combustion), require special storage conditions.

How are the batteries of screwdrivers charged: rules, time, subtleties

Each master who constantly works with electric tools should know about how to charge the battery of an electric screwdriver so that the battery serves longer, and how to properly operate the battery for the time allocated to it.

If the tool is used for the first time, it is recommended to charge the battery. When an electric screwdriver lies in a warehouse or in a store without use, the batteries always discharge, and this must always be remembered when buying.

If you have become the owner of a nickel-cadmium battery, be sure to charge and discharge it three times before work. This is necessary to optimize the accumulation of the battery. After that, standard charging will be required. With nickel-metallhydrid battery, you can carry out the same manipulation.

The most “trouble-free” in this case are lithium-ion batteries. The memory effect of them is not expressed, and they can be charged without bringing to a complete discharge.

It is recommended to comply with several general charging rules that can be attributed to all batteries of screwdrivers:

  • The battery should be charged at temperatures at least 10 ° C and not higher than 40 ° C.
  • Nickel-metallhydrid batteries tend to heat up quickly. Therefore, the charging process always needs to be monitored in order to avoid overheating.
  • Remember that other batteries also heat up, especially if the room temperature is very high.
  • Take care of the possibility of cooling the elements to avoid their failure.
  • Do not leave the batteries in the charger if you do not charge them.
  • It is better to store the battery if you remove it from an electric screwdriver, which is not planned to work in the near future.
  • If the batteries are not used for a long time, do not forget to recharge them once a month. This will prevent a deep discharge that can fatally affect the indicators of their capacity.

To the question of how much time to charge the battery of an electric screwdriver, you can answer this way:

  • A small battery feed can last 30 minutes,
  • You can leave the battery as much as possible for 7 hours.

The time during which this or that tool needs to be charged is always indicated in the instructions for its operation. And this is always recommended to be carefully observed.

It is important to remember that chargers are different. There is a ZU with an indicator of the charge level, which allows you to control the process and understand when it ends. At the end of charging, it should be stopped immediately so as not to bring the battery to the battery.

For screwdrivers of different types of it are also different:

Ryobi VS Knock Off Battery, Run test and Disassemble !!!!

  • Standard, ordinary “charger”. Suitable for amateur tools,
  • Impulse. More powerful, is included in the completion of professional tools, it can charge an electric screwdriver within an hour.

Comparison of batteries used for screwdrivers

Having briefly examined the types of batteries, let’s compare them among themselves in ten parameters, which will help to figure out which batteries are better for screwdrivers. I will immediately warn that there are no absolute leader in all categories, and we need to pay attention to those advantages that will be useful for specific activities and the scope of use.

Number of charge and discharge cycles

All batteries have one drawback. Sooner or later the energy in them ends and the device must be put on charging. Depending on the type of battery, there is an average limit of the number of charging cycles, after which the battery will no longer be able to accumulate the current and it will have to be replaced.

For screws with nicd batteries, this indicator is 1000 cycles, and the tool often continues to work after reaching the specified figure. This makes him a leader when comparing in this characteristic.

The common type Li-Ion in screwdrivers is able to charge and discharge more than 600 times. The advanced technology of the last century NIMH is significantly inferior to the previous one and the battery will withstand only 300-500 cycles.

The ability to fasten quickly

If there is a volumetric work, then one battery may not be enough, so the masters use two batteries: while one functions in an electric screwdriver, the second is charged. The performance of the work depends on how quickly this happens.

Nickel-cadmium and nickel-metallogid batteries are charged for 4-8 hours, which depends on the capacity. The latter, although they quickly accumulate energy, they need constant recharging during storage.

The leaders of this category are lithium-ion batteries, which can completely recharge from 30 minutes to 2 hours, depending on the capacity. Thanks to this, the battery installed on an electric screwdriver does not have time to discharge, and the second located at the charging station will already be ready to work.

Когда нужно просверлить отверстие в плотном материале или закрутить саморез толстого сечения и большой длины, то приходится задействовать инструмент на полную мощность. In this case, active charge consumption begins, and the ability to qualitatively complete the process without drawing revolutions depends on this phenomenon reaction to this phenomenon.

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In view of this, modern Li-Ion batteries significantly lose earlier analogues. The most powerful in this regard are Nicd and NIMH. When the maximum return of energy is required, they choose them.

The effect of memorizing the charge level

This phenomenon is called the “memory effect”. If the battery on the tool was not completely discharged and then put on charging, then the residual level of charge begins to be perceived by the battery as zero. Having charged until the full stage, it will function until the energy supply does not reach the new mark, and after that it will inform you that it is discharged, although the container will not be completely devastated.

In view of this phenomenon, the master has to ensure that the battery is completely discharged, and only then put it on charging. This is not always convenient if at the end of the day there is still a charge, and tomorrow there is a lot of work to do. The effect of memory is possessed by all types of batteries with nickel. But lithium-ion models can be charged at any time-they will always spend the accumulated energy to the end, without a spontaneous decrease in capacity.

Self.Discharge

It happens that they did not use the tool for some time and it was unexpectedly needed. At such a moment, it may turn out that the battery is self.Discharge, and in order to perform the operation, you must first put it in a charger and wait a few hours. This is inconvenient for periodic use.

Unfortunately, nickel-cadmium batteries, as well as nickel-metallogidride, are distinguished by such a “disease”. The former in the self-discharge indicates 10% per month, and in the second 7-10%. Lithium-ionic in this regard is much better-left to lie without use, they will lose only 3-5% after four weeks.

Dimensions

Screwdrivers batteries are fixed to the instrument handle. The weight of the electric screwdriver and the convenience of holding it depends on the size of the batteries. This is especially important with prolonged manipulations and work on the head (fastening the beams on the ceiling, drywall sheets, fixing the panels in hard.To.Reach places). The most difficult and large are nimh and nicd.

Compact release Li-Ion. Often they are made as a clip that occupies only space in the handle of an electric screwdriver, without an extended outer part.

Work in the cold

Although screwdrivers are more used for repair in the room and furniture production, sometimes it is necessary to fix the materials on the street or in unheated buildings, where there is a minus temperature. Li-ion batteries do not tolerate low temperatures.

In the cold, such a battery can simply refuse or discharge three times faster than usual. The leaders of this category are power sources with nickel. They hold the charge perfectly and provide the functionality of an electric screwdriver even when.20 degrees of frost.

Attitude to a complete category

This is an important aspect affecting the service life of the battery, which can significantly be reduced from improper operation. All modern batteries with lithium cannot be completely discharged. The optimal storage condition is 40% of the charge. If you produce all energy up to 0, then this can be completely disabled.

Therefore, such elements must be put on recharging even if the tool still works well. Batteries with nickel of both types tolerate the full category well, and they can work until an electric screwdriver stops rotating.

What characteristics are important when choosing a battery for an electric screwdriver

Given the advantages and disadvantages of various types of batteries, you can choose the appropriate for specific operating conditions. Now let’s look at two key characteristics that all types of batteries affect the choice of electrical screwdriver.

What the battery capacity is talking about

The battery capacity is prescribed by numbers from 1.0 to 7.0 and measured in amperes multiplied by the clock (Ach). The value is deciphered as follows: the specified amount of amperes will be able to issue within an hour. But since no electric screwdriver consumes 1-5 and per hour, then its use is stretched from 2 to 8 hours. The higher the container, the longer the tool will be able to stay in work.

What the battery voltage is talking about

In battery models, the strength and rotation speed of electric screwdriver depend on the voltage of the battery, which should correspond to the parameters of the tool:

  • For screwdrivers, the maximum indicator is 36 in. These are the most powerful devices for working with metal and solid wood rocks.
  • 12-18 V is the average value suitable for most processes in the repair and installation.
  • 3-10 V-belong to low-power, and are used only for assembling soft materials or fasteners of small diameter.

The installation of a larger power battery on a weak model will lead to a breakdown of the last. Battery 12 V on the apparatus calculated by 18 V, on the contrary, will limit the strength of the tool, so the storage voltage indicator must accurately correspond to the value on the electrical screwdriver.

Keep in mind that if you take two batteries with the same capacity, the longer operation of the tool will provide one with higher voltage.

What voltage should be on the battery of an electric screwdriver?

The main of the parameters that characterize the work of the screwdriver is the voltage of the battery, on which, in turn, the power of the electric motor and torque depends. For household models, the difference between screwdrivers in voltage is small. On average, it is in the range of 10.8–14.4 V.

For household screwdrivers, there is enough power of 500 W (for network) and 9-14 V (for battery). Professional models for prolonged and intensive work require a capacity of at least 550 and up to 800 W (network), and battery ones from 18 V and above.

What characteristics of the battery are important when choosing

The first thing you need to look at when choosing the battery for replacement is the operating voltage of the battery. It is selected with the initial purchase of an electric screwdriver, and the torque of the power tool depends on it. Although not only from it, but also from the design of the mechanical part (gearbox) and the electric motor. Therefore, two electrical screwdrivers for voltage, for example, 12 volts, can have a difference in power (this value is associated with a worshiping moment hard dependence).

There are also two tools (one on conditional 12 volts, the other for 14) can be with the same torque. But in general, the power depends on the voltage. The more one parameter, the more the other. By this characteristic, select a battery for a replacement for an electric screwdriver simply. The voltage of the new battery should be equal to the voltage of the old. If it is smaller, then the torque will decrease and. If more, then the moment will increase, but the resource of the mechanical part and the electric motor will decrease. How to react the control circuit for electrical screwdriver control to an increase in voltage, only developers are known. It is possible that it will fail.

Choice recommendations can be spied in the next video.

The battery capacity determines how much it will work from charging to category. The larger the parameter value, the longer the electric screwdriver will work out. A small container can be compensated by the acquisition of two batteries. While one works, the other is charged.

Current transfer characterizes the possibility of work under load without losing torque. In lithium batteries, it is lower than NIMH (nickel-cadmium batteries are difficult to buy, their release is minimized, so it makes no sense to consider them when choosing).

The weight of the batteries is determined by the specific energy intensity and actual capacity. The higher the specific energy intensity, the lower the weight with the same electrical capacity. But it should be borne in mind that the design of an electric screwdriver is balanced taking into account the weight of the standard batteries, and if you set the task to reduce the mass.Body indicators, this may lead to an effortaurization. As a result, it will be less convenient to work with the tool and the hand will get tired faster.

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It is also necessary to take into account the conditions in which the tool will be operated. For external work in low temperatures, it will be necessary to find somewhere nickel-cadmium batteries. Nickel-metallogratic can work in less stringent conditions. Lithium-ion for operation at temperatures below zero are not intended.

Rating 5 best screwdrivers.

Electric screwdriver for homework

When choosing a battery, it is necessary to take into account the operating mode. Professional use differs from home more intensity, less tolerance to forced interruptions, and in some cases, an increased output of power is required from an electric screwdriver. Hence a certain difference in the approach to choosing a battery.

In most cases, homework boils to twisting screws (up to 10-12 pieces) or drilling several holes with a frequency of 1-2 times a month. For such work, there is enough battery with a voltage of 12-14 volts with a capacity of 1000-1500 mAh. There is no sense in choosing lithium-ion elements-their capacity decreases during storage, regardless of the intensity of operation. Therefore, it is likely that their resource will not be developed with rare use. And they are expensive.

Daching and construction work relate to home use, but in terms of intensity and other parameters they can be compared with professional activities. Therefore, for this type of operation, an electric screwdriver is best chosen by criteria, as for industrial use.

No one forbids to choose a power tool with increased characteristics for the home. But it is worth remembering that everything needs to be paid.

Electric screwdriver for professional activities

For professional use, you need to choose the battery for a voltage of 18 volts (even at the stage of buying a new electric screwdriver).

For replacement, you need to purchase two batteries with a capacity of 2 ah. If you work to work in a workshop or in another room, you can choose lithium-ion batteries. With intensive use, all its advantages are revealed. But if it is necessary to screw long metizes into heavy materials, preference will have to give a nickel-metallological battery that can give an increased current. They must also be chosen when operating outside the premises.

Types of batteries

So, what are the batteries? Typically, nickel-cadmium and lithium nutritional elements are used for electric drifts. There are still nickel-metallhydrid batteries, and they are good in their own way. But for screwdrivers, they began to be used very rarely: these batteries, unfortunately, are heated very quickly when charging and intensive work of the tool. In addition, nickel-cadmium batteries, despite the fact that they can rightfully be called “veterans” among the chemical sources of current, are still superior to nickel-metallogidrides in many characteristics.

Nickel-cadmium and nickel-metallhydride batter

Ni-CD are the first alkaline batteries, the production equipment of which was developed at the end of the 19th century. However, due to the fact that for those times the mass production of the battery was very expensive and required certain conditions, it began intensively only in the 50s of the twentieth century.

Despite the criticism of numerous fans of more modern batteries, the capacity indicators of nickel-cadmium batteries have good. And heat up during operation is much less. Than the same nickel-metallogidrides, due to endothermic reactions occurring inside. If you recall the school course of chemistry, the endothermic reaction means nothing more than the absorption of the released heat inside the element, and not the release of it into the external environment. And this is what happens to Ni-MH batteries.

If we compare the characteristics of the batteries for screwdrivers, based on practicality and safety, the cadmium battery will be much better. It is for this reason that they are still the most popular for electrical tools of everyday use.

batteries, used, screwdrivers, battery, comparison, table

In short, all the advantages of nickel-cadmium battery can be voiced in this way:

  • Significantly reduced risk of overheating. They do not threaten to quickly “burn out” or fail, unlike metallogids.
  • Durable metal case. Cadmium batteries have a good indicator of internal chemical reactions and excellent tightness of the metal coating. They can work well at very low temperatures, before.40 ° C.
  • The long service life under proper operating conditions is from 8 to 10 years without the need to change the battery block.
  • Moderate, affordable cost. Unlike more powerful, but expensive lithium elements.

In order for the NI CD batteries for an electric screwdriver to work out all their due service life, there are several effective recommendations for their operation.

Dewalt 8V MAX Gyroscopic Screwdriver. DCF680N2

Since they are not afraid of deep discharge. Work with an electric screwdriver should be up to the full discharge of the battery block. Then you can put the batteries to charge, not afraid that they will lose the container: when charging, these batteries quickly make up for it. Storing them is also better discharged. In this case, the so.Called “memory effect” will be much less, and in the process of storage they need no recharging.

“Memory effect” that nickel-cadmium batteries for screwdrivers is in fact not a shortage is not too much. In order not to “remember” the unnecessary level of charging, they need to conduct two or three full cycles of the charge-discharge. Then all their best indicators will quickly recover.

In order for the “memory effect” to appear less and less, you should not often recharge them. It is better to carry out full charging cycles, thereby “cleansing the memory”. It is this for a long time that will provide nickel-cadmium batteries with greater productivity.

What can be said about NI-MH batteries, except that they are prone to heating? These batteries are less harmful to the environment. “Memory effect” is less pronounced than Ni-CD predecessors. But they will have to charge them more often, because the percentage of self.Discharge these batteries have high. In popularity are inferior to Cadmiev.

Lithium-ion batteries and their advantages

It is lithium.Based batteries that many consumers are now on the hearing now. Partly due to the fact that the lithium composition is used everywhere, in almost any gadget, from a smartphone to a personal laptop. They appeared not so long ago, if we compare the time of their occurrence with the Nickel-Kadmievs-only in the 90s of the last century.

It is known that at first the lithium-ion batteries had a high degree of explosion hazard due to technological flaws. At the moment, their overwhelming majority is equipped with controllers of the charge and heating levels, which provides them with safety and increased periods of productive use.

What is so noteworthy lithium batteries?

Consider their advantages in comparison with the predecessors:

  • Higher level of capacity. Which increases the term of their continuous use.
  • Lack of “memory effect” (at least, so say sellers and manufacturers).

The high level of capacity provides the successful application of this particular type of battery in the technical tools of the professional plan.

For all their advantages, lithium batteries are very sensitive to the slightest voltage drops during charging. As well as to sharp changes in temperature. Of course, to one degree or another, all chemical sources of current are subject to such sensitivity. But experts in the field of electronics are not accidentally called “capricious” precisely this type of battery.

Unlike nickel-cadmium, lithium battery does not make sense to acquire with a margin. Over time, they lose their container if they do not use them for a long time. And their shelf life is no more than two years.

Types of batteries

So, what are the batteries? Typically, nickel-cadmium and lithium nutritional elements are used for electric drifts. There are still nickel-metallhydrid batteries, and they are good in their own way. But for screwdrivers, they began to be used very rarely: these batteries, unfortunately, are heated very quickly when charging and intensive work of the tool. In addition, nickel-cadmium batteries, despite the fact that they can rightfully be called “veterans” among the chemical sources of current, are still superior to nickel-metallogidrides in many characteristics.

Nickel-cadmium and nickel-metallhydride batter

Ni-CD are the first alkaline batteries, the production equipment of which was developed at the end of the 19th century. However, due to the fact that for those times the mass production of the battery was very expensive and required certain conditions, it began intensively only in the 50s of the twentieth century.

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Despite the criticism of numerous fans of more modern batteries, the capacity indicators of nickel-cadmium batteries have good. And heat up during operation is much less. Than the same nickel-metallogidrides, due to endothermic reactions occurring inside. If you recall the school course of chemistry, the endothermic reaction means nothing more than the absorption of the released heat inside the element, and not the release of it into the external environment. And this is what happens to Ni-MH batteries.

If we compare the characteristics of the batteries for screwdrivers, based on practicality and safety, the cadmium battery will be much better. It is for this reason that they are still the most popular for electrical tools of everyday use.

In short, all the advantages of nickel-cadmium battery can be voiced in this way:

  • Significantly reduced risk of overheating. They do not threaten to quickly “burn out” or fail, unlike metallogids.
  • Durable metal case. Cadmium batteries have a good indicator of internal chemical reactions and excellent tightness of the metal coating. They can work well at very low temperatures, before.40 ° C.
  • The long service life under proper operating conditions is from 8 to 10 years without the need to change the battery block.
  • Moderate, affordable cost. Unlike more powerful, but expensive lithium elements.

In order for the NI CD batteries for an electric screwdriver to work out all their due service life, there are several effective recommendations for their operation.

Since they are not afraid of deep discharge. Work with an electric screwdriver should be up to the full discharge of the battery block. Then you can put the batteries to charge, not afraid that they will lose the container: when charging, these batteries quickly make up for it. Storing them is also better discharged. In this case, the so.Called “memory effect” will be much less, and in the process of storage they need no recharging.

batteries, used, screwdrivers, battery, comparison, table

“Memory effect” that nickel-cadmium batteries for screwdrivers is in fact not a shortage is not too much. In order not to “remember” the unnecessary level of charging, they need to conduct two or three full cycles of the charge-discharge. Then all their best indicators will quickly recover.

In order for the “memory effect” to appear less and less, you should not often recharge them. It is better to carry out full charging cycles, thereby “cleansing the memory”. It is this for a long time that will provide nickel-cadmium batteries with greater productivity.

What can be said about NI-MH batteries, except that they are prone to heating? These batteries are less harmful to the environment. “Memory effect” is less pronounced than Ni-CD predecessors. But they will have to charge them more often, because the percentage of self.Discharge these batteries have high. In popularity are inferior to Cadmiev.

Lithium-ion batteries and their advantages

It is lithium.Based batteries that many consumers are now on the hearing now. Partly due to the fact that the lithium composition is used everywhere, in almost any gadget, from a smartphone to a personal laptop. They appeared not so long ago, if we compare the time of their occurrence with the Nickel-Kadmievs-only in the 90s of the last century.

It is known that at first the lithium-ion batteries had a high degree of explosion hazard due to technological flaws. At the moment, their overwhelming majority is equipped with controllers of the charge and heating levels, which provides them with safety and increased periods of productive use.

What is so noteworthy lithium batteries?

Consider their advantages in comparison with the predecessors:

  • Higher level of capacity. Which increases the term of their continuous use.
  • Lack of “memory effect” (at least, so say sellers and manufacturers).

The high level of capacity provides the successful application of this particular type of battery in the technical tools of the professional plan.

For all their advantages, lithium batteries are very sensitive to the slightest voltage drops during charging. As well as to sharp changes in temperature. Of course, to one degree or another, all chemical sources of current are subject to such sensitivity. But experts in the field of electronics are not accidentally called “capricious” precisely this type of battery.

Unlike nickel-cadmium, lithium battery does not make sense to acquire with a margin. Over time, they lose their container if they do not use them for a long time. And their shelf life is no more than two years.

Lithium or nickel-cadmium batteries-which is better?

In fact, the question of which battery is better for an electric screwdriver is not quite correct. It all depends on the situation and the duration of the time during which the tool will be used.

batteries, used, screwdrivers, battery, comparison, table

The lithium battery block weighs less with the same capacity indicators that in cadmium. But this is not the main indicator based on which you should choose a battery for an electric screwdriver. Of course, the number of charge-discharge cycles in cadmium elements are many times less than in lithium. The standard for Ni-CD is 500, and for LI-1500, which, of course, initially suggests that lithium batteries are much better.

When choosing batteries, it is important to take into account the fact that aging of nickel-cadmium batteries depends exclusively on the cycles they have developed, and not on their real age. The service life of lithium-ion batteries, unlike cadmium, directly depends on the age by year. After 5 years, they will already fail, even if they have not been used. Nickel-cadmium batteries, on the contrary, will live for a long time even if they have not been used for a year or more.

For example, when buying an electric screwdriver that was used, do not take it with lithium batteries. There is a large share of the probability that if the tool has not been used for a long time, its battery unit is already unsuitable for use. If the Former Surik is sold with cadmium batteries, they can save up to 60% of the charge, regardless of whether the worker was the tool or not.

If the electric screwdriver is not used very often, the lithium batteries are more likely to “get old” than to serve their laid 1,500 cycles. Therefore, for periodic domestic use, it makes no sense to buy a tool with lithium batteries.

Cadmium can serve from 8 to 10 years, regardless of whether batteries are used or not. He can also calmly lie in the warehouse, maintaining his properties, unlike lithium. If you do not plan to use an electric screwdriver often, the answer to the question of how to choose a battery will be brief and truthful: choose a cadmium.

By the way, with frost to.20 ° C Cadmius “behaves” better than lithium batteries that do not like big frosts. Lithium must be stored in a charged state, at least 60%. They need constant recharging if they are not used. Otherwise, they begin to collapse.

So, if an electric screwdriver is not used intensively, for periodic domestic use, choose a tool equipped with nickel-cadmium battery block. If you work with an electric screwdriver daily and professionally. Of course, it will be better to opt for lithium, because the batteries will serve their laid 100 cycles, return and pay off the money invested in them. Do not overpay for unnecessary cycles if you do not use the tool often and constantly.

Thus, it becomes clear that nickel-cadmium batteries, in fact, are no worse than lithium. The main question is only in the scope of both types of chemical nutritional elements. When using each of them at the right time and in the right place, both of them can be equally useful and good. How to replace the batteries in an electric screwdriver, including NI-CD on Li-Ion, read here →

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