What Does The Battery Voltage Of The Screwdriver Affect?

Restoration of the screwdriver battery
Who said that restoring a screwdriver battery is impossible in principle? What prevents the owner of a branded modification from saving on expensive batteries? You probably won’t be surprised at the versatility of the answer. Ignorance. Developing the topic, we note: it is possible! The article will help you solve the problem of “global aging” of the battery. One has only to read about how and what to do.

The process of replacing an inoperative battery

Using a sharp knife (a scalpel is ideal) “cut” the contact plates “” and “-” from the malfunctioning container.
Using a household soldering iron and low-melting solder, add a new capacitive cell to the overall battery “power strap”.
Observe the polarity when installing a new container.

Important: do not overheat the case when soldering. Use special acid and catalytic fluxes.

What Does The Battery Voltage Of The Screwdriver Affect?

Restoring a screwdriver battery through freezing

Your power tool is most likely equipped with a nickel-cadmium battery. Because this type of battery (in the context of the presented article) is the most common. This is why our material is dedicated to this particular type of battery. However, the recommendations below are also valid for the use of metal hydride energy sources. So, the order of actions:

Place the battery packed in a plastic bag (completely discharged!) Into the freezer.
Remove the battery from the refrigerator after 10-12 hours.
Let the battery charge for a few hours.
Then you need to “drop” the battery. Let it work until the energy in the containers runs out.
Repeat the described procedure 2-3 times.

But what if such a restoration of the screwdriver’s battery has not been fully successful? In this case, you should resort to a comprehensive solution to the problem, which you will learn about from the sections below.

“Banks” that do not store money

Speaking about the restoration of the screwdriver battery, one cannot fail to mention that the batteries with which the negotiated construction tool is equipped may have different technical characteristics. Often this kind of “energy individuality” of the power source plays an important role at the time of operation. For example, under low temperature operating conditions, preference should be given to nickel-cadmium batteries. Whereas the nickel-metal hydride type of batteries is more durable in use and can have a relatively large capacity. Meanwhile, lithium-ion batteries have also become widely used. The power supply of this type does not need any maintenance at all, it is devoid of the “memory effect”, and most importantly, with a high capacity, “energy banks” batteries have more compact dimensions than those of “competitors”.

Restoration of the screwdriver battery. How to restore the battery of a screwdriver

A practical owner, like no one else, understands how convenient and effective an autonomous hand-held power tool is to use. A professional builder, who is mainly engaged in finishing work, cannot do without a screwdriver. Nevertheless, a battery, of any type, begins to lose its energy potential after a certain time. Purchasing a new battery is not a cheap pleasure. But who said that restoring a screwdriver battery is impossible in principle? What prevents the owner of a branded modification from saving on expensive batteries? You probably won’t be surprised at the versatility of the answer. Ignorance. Developing the topic, we note: it is possible! The article will help you solve the problem of “global aging” of the battery. One has only to read about how and what to do.

Dismantling the body of the autonomous power supply

After you have made sure that several deep charge / discharge cycles of the battery have not yielded a positive result, and your battery still discharges quickly during operation, follow the step-by-step scenario of actions. Let’s take a battery for a Makita screwdriver as an example.

Before proceeding with the actual disassembly process, charge the device.
To gain access to the capacitive elements of the battery, it is necessary to unscrew several fixing screws.
In some cases, it is required to carefully crack the case at the joints of structural parts.

Attention: when implementing the last variant of dismantling, do not use excessive physical force, as you can deform the case plastic of the battery. Remember: after the “restoration” work, the container must sit securely in place.

Helpful hints

Don’t bother yourself if your battery is a lithium-ion type. It is unlikely that you will be able to restore it.
A traditional nickel-cadmium battery can always be “pushed” by applying a higher voltage momentarily. However, before resorting to such drastic measures, it is necessary to study this electrical issue of “reincarnation” in more detail.
You may not know, but the traditional type of battery, which is a nickel-cadmium battery, cannot be connected to charging if its capacities have sufficient energy potential. Otherwise, the destructive consequences of the “memory effect” of the battery simply cannot be avoided.

What does the battery voltage of a screwdriver affect?

To begin with, there is a lot on the Internet for recovering batteries from screwdrivers, and they are all the same as a mirror, a brief description of the recovery process that these people offer is that we take the battery, push it with a power supply unit or another battery, then charge and use , and it’s strange that someone doesn’t look, but what kind of stress will he have when he’s lying down for a week or two. I offer a completely different way to restore

Which does not just charge and use until the battery dies again. And one that you did and use as a new battery until the need arises. This method was filmed in draft about a month ago, but I never dared to post it on the site, I just didn’t want to reshoot it for a more correct explanation. And frankly speaking, I have very little free time lately.

But now the time has passed which has shown that the recovery option that many people on the network offer to use are not destined to live for more than a certain period of time. And my version, even after 2-1 month of inactivity, as if nothing had happened quietly works and charges, I still tried to shoot a new video, where in the brink I will try to tell everything.

In fact, everything turned out to be very simple, and the NI-CAD 1.2V battery I disassembled helped me in this, which showed me that even with all the zeros on the outside of the device, inside the patient is rather alive than dead and feels very good.

An attempt to regenerate the bus relative to the collector plate was made using distilled water, and the process was quite successful, as a result of which I came up with the easiest way to restore them even without disassembling the batteries!

It is enough to drill a hole in the battery in the place behind the rollers, and pour 20.40 ml of distilled water there. After a couple of cycles, the hole is slightly covered with silicone.

Before repeating, I recommend looking at where I tried to describe the process in more detail.

If you are not sure or afraid of ruining a damaged battery, for example, you can do this with one battery.

If your batteries have voltage and are in the operating range, then you may have a problem with the following:

Also, if you notice that the drill began to work somehow sluggishly and at the same time it works as long in time after charging, then you probably have a problem with one or more batteries that are at zero!

A very interesting effect on the battery capacity, it was equal to or slightly more than the indicated battery capacity after restoration by this method.

What does the battery voltage of a screwdriver affect?

To begin with, there is a lot on the Internet for recovering batteries from screwdrivers, and they are all the same as a mirror, a brief description of the recovery process that these people offer is that we take the battery, push it with a power supply unit or another battery, then charge and use , and it’s strange that someone doesn’t look, but what kind of stress will he have when he’s lying down for a week or two. I offer a completely different way to restore

Which does not just charge and use until the battery dies again. And one that you did and use as a new battery until the need arises. This method was filmed in draft about a month ago, but I never dared to post it on the site, I just didn’t want to reshoot it for a more correct explanation. And frankly speaking, I have very little free time lately.

It is enough to drill a hole in the battery in the place behind the rollers, and pour 20.40 ml of distilled water there. After a couple of cycles, the hole is slightly covered with silicone.

Before repeating, I recommend looking at where I tried to describe the process in more detail.

If you are not sure or afraid of ruining a damaged battery, for example, you can do this with one battery.

If your batteries have voltage and are in the operating range, then you may have a problem with the following:

A very interesting effect on the battery capacity, it was equal to or slightly more than the indicated battery capacity after restoration by this method.

How long does it take to charge the screwdriver batteries?

As a rule, the charging time of the screwdriver battery is indicated in the instructions for the tool. These recommendations should be carefully followed. Often the charger has a special display system to help you understand how the charging process is going. Thanks to this, you can easily determine with how much to charge the screwdriver battery. When charging is complete, you need to interrupt it in time so as not to damage the batteries. On average, the charger battery for a screwdriver can recharge from about half an hour to 7 hours. Practice shows that a Ni-Cd battery with a capacity of 1.2 Ah is charged with a current of 250 mA for about seven hours. The charging current is maintained using the mains adapter.

It should be borne in mind that there are two types of battery chargers. Conventional and impulse. A standard conventional charger is more often used in a non-professional tool, it charges the battery in about 3-7 hours. Pulse. More suitable for professional mechanisms. Thanks to him, the battery’s performance can be restored in a maximum of an hour.

Do batteries need to be charged before storage?

If the cordless tool is not used for a long time, experts advise you to carefully consider the battery cells.

It is recommended to discharge nickel-cadmium batteries before storage, but not to zero, but to the point where the instrument stops working at full capacity. During long-term storage, to restore the capacity of the battery, it is necessary to carry out 3-5 complete cycles of its discharge and charge. In the process of using the tool, it is also advisable to ensure that the battery is not partially discharged before charging, but completely.

Nickel-metal hydride batteries have a higher self-discharge rate than previous cells. They are recommended to be kept charged, and after a long “rest” charge for about a day. Partial discharge is preferred for this type of battery. Their capacity decreases after 2-3 hundred charge-discharge cycles.

Lithium-ion batteries, which do not have a “memory effect”, can be charged at any time, regardless of the degree of discharge. These batteries have the lowest self-discharge at high capacity. It is not recommended to completely discharge them, as this may disable the protective circuit. Power tools with such batteries are equipped with control electronics that disconnect the cell from the load when the temperature or voltage rises. We recommend storing these batteries 50 percent charged. The number of charge-discharge cycles does not affect the capacitive characteristics of the cells, however, their life is limited by time and is about two years.

Battery charging features

How to properly charge the battery of a screwdriver so that it lasts as long as possible?

Batteries must be charged before first use as they discharge during storage. To make the battery capacity of the screwdriver the maximum possible for the nickel-cadmium cell, it is recommended to charge it three times and then discharge it. Thus, since the new battery has incomplete capacity, it must be brought to full working capacity. After that, the batteries will need to be charged as soon as their capacity becomes minimum. Lithium-ion batteries are easier to use. They do not have a memory effect, so you can not bring them to full discharge and charge when it is convenient.

When charging, you need to take into account the optimal temperature regime of the process. It is better that the ambient temperature is above ten degrees and does not exceed forty. Batteries sometimes get warm during charging, but this should not be the case, as overheating negatively affects their performance, and they need to be cooled. It is undesirable to leave batteries in the charger. And it is better to store them by disconnecting them from the screwdriver, separately from the tool itself. If the batteries are not used for a long time, they should be recharged once a month.

It is better to buy rechargeable batteries at specialized points of sale. Correct use will help increase their service life. During operation, it is undesirable to discharge the elements completely until the engine stops. The fact that they need to be charged will be indicated by their markedly reduced performance.

Instruments

Among power tools, both household and professional, the screwdriver is one of the most demanded. With its help, you can not only unscrew and screw in self-tapping screws, but also drill holes. It is not always possible to use tools powered by the network, and the cord interferes with work all the time. Cordless screwdrivers are relieved of these disadvantages. With them, you can move freely and not depend on the presence of an outlet in the room.

An important element of every cordless tool is the battery, which allows it to work autonomously. This is very convenient, but sooner or later, each owner of such a power tool faces the question of how to charge the screwdriver battery.

Types of batteries used to operate the screwdriver

Before purchasing new batteries for the screwdriver, you must carefully study the instructions for the device. The tools required for work can be professional, household and semi-professional. Batteries for them differ from each other in capacity, quality and price.

For certain jobs, certain types of cordless tools are also intended, designed for different loads, therefore, different batteries are needed for them. The higher the power rating of the battery, the longer it can work. For convenience, it is better to have two batteries so that you can recharge the second when working with one. Often a second battery is already included when the instrument is sold.

Various types of batteries can be used for screwdrivers. The most commonly used nickel-cadmium (Ni-Cd) and nickel-metal hydride (Ni-MH), and recently also lithium-ion (Li-Ion).

The most common of them are nickel-cadmium batteries, which are compact in size, large in capacity and at an affordable price. These batteries can be effectively charged more than a thousand times, depending on their design, purity of materials, operating mode, including the correct charge. However, these devices have a so-called memory effect, and if you charge them without waiting for a full discharge, the battery capacity will gradually decrease. In addition, the production of such elements is so toxic that the European Union abandoned it on its territory.

In second place in terms of frequency of use are nickel-metal hydride batteries, representing a new generation of similar devices. From the point of view of ecology, both production and disposal of these batteries are practically safe. The advantages of batteries of this type include the fact that they have less pronounced memory effect, and the disadvantages. High self-discharge current. These batteries must be kept charged and fully recharged when not in use for more than a month.

Recently, more powerful lithium-ion batteries have been used for cordless tools. They also do not have such a disadvantage as the memory effect, which requires periodic discharge cycles to restore capacity. However, these batteries do not withstand low temperatures, and it is undesirable to work with them in cold weather. Despite their fast charge and high capacity, they are not very popular yet, as their price is quite high.

Types of batteries used to operate the screwdriver
Battery charging features
How long does it take to charge the screwdriver batteries?
Do batteries need to be charged before storage?
What should I do if the screwdriver battery does not charge?

There is a way out. Reworking the screwdriver in the network

Yes, it loses one of the benefits of a cordless tool. Mobility. But for work in rooms with access to a 220 volt network, this is an excellent way out. Over, you give new life to a broken instrument.

There are two concepts of how to make a network out of a cordless screwdriver:

Conversion of a screwdriver from battery to mains supply

Battery Disadvantages
There is a way out. Reworking the screwdriver in the network
External power supply
Battery case power supply
DIY screwdriver alteration
Using a power supply from a personal computer
Using a car battery charger
Making a homemade power supply
AC adapter for screwdriver in battery housing
We build in a ready-made power supply
Homemade power scheme

Those who have used a cordless screwdriver have appreciated its convenience. At any time, without getting tangled in the wires, you can crawl into hard-to-reach niches. Until the battery runs out.

Battery case power supply

Mobility remains, you are limited only by the length of the network cable. The only problem is how to squeeze a sufficiently powerful transformer into a small case.

We recall Ohm’s law again, and understand that a powerful 220 volt electric motor can be compact.

Using a power supply from a personal computer

On the radio market for a small cost, you can purchase an old power supply from a personal computer. We need a variant of the AT format, which had to be turned off by pressing the key after exiting the operating system.

Experienced users remember such system blocks. The advantage of such a power supply is also that it indicates an honest power. If it says 300W, it means you can safely remove 15-16 amperes from the 12-volt output (again referring to Ohm’s law). This is enough to power an average screwdriver.

Such blocks have a power button in the kit. Another advantage is the presence of a cooling fan and an advanced overload protection system.

If you are hiding the power supply in a beautiful case, do not forget to leave a hole for ventilation.

The connection is very simple. Black wire (-), yellow wire (12V).

Limitations. A screwdriver with a supply voltage higher than 14 volts will not work.

Using a car battery charger

The principle is the same as using a computer power supply. It is necessary to purchase an old charger for the starter batteries. The modern fashion for compact impulse chargers has left analog linear devices with manual control of voltage and charge current behind. Therefore, such a device can be purchased on the automotive market for a symbolic cost.

Charger MAX INTER

It’s good if the voltage can be adjusted smoothly. In this case, your makeshift power supply will fit any screwdriver.

Converting it to a power tool is reduced to connecting the input of the electric motor to the power terminals of the charger.

External power supply

The idea is not as absurd as it might seem. Even a large and heavy buck rectifier can just stand near the outlet.

You are equally tied to the power supply, and to the stuck mains plug. And the low-voltage cord can be made of any length.

IMPORTANT! Ohm’s law says. With the same power, decreasing the voltage. We increase the current! Accordingly, the 12-19 volt supply cord should have a larger cross section than 220 volts.

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