do-it-yourself electric screwdriver to 220

How to convert an electric screwdriver to 220 V

After the battery of an electric screwdriver fails, it can be transferred to a 220V network. This requires only an adapter and a power supply. This is a very simple modification that does not require a lot of time or high costs.

The process of modernization and refinement of an electric screwdriver

It is necessary to disconnect the battery of the electric screwdriver, disassemble it, and remove the batteries.

It is important to keep the original terminal blocks and terminals.

The latter are neatly detached from the batteries, and a wire with a cross section of 4 sq. Mm is soldered to them. Then the terminals are inserted into the holders.

Next, you need to drill the battery case, remove the chamfer on the hole in order to screw the terminal holder through it with an M3 screw, since it will not hold without batteries.

Before installation, a capacitor is soldered to the terminals so that the power supply from the PC does not go into protection against inrush currents.

Since the capacitor will interfere with holding the nut when tightening the screw, it is better to glue it to the terminal holder. A hole for the wire is visible on the side of the battery case.

Then the clamp is screwed on and everything is assembled back. It is important to remember to which terminal of which color the wire is soldered.

According to the sticker on the power supply, you need to determine which wires have a 12V output and connect to them. If there are 2 such mowing lines, then they twist together.

In order for the power supply to turn on without a computer, you need to short any black wire to the green one. This can be done with a paper clip jumper.

If the power supply turns out to be weak for your electric screwdriver, then it will go into protection even with a capacitor. Then you need to connect a separate load to it. It might be an old hard drive. The installed 5W 6V light bulb on the 5V block line also helps. Having altered your electric screwdriver in this way, you will retain the ability to disconnect the modified battery case from it at any time, and install a regular battery.

How to convert a 220V cordless electric screwdriver

Over time, the battery of a cordless electric screwdriver wears out and needs to be charged more and longer. In order not to change it, you can transfer the instrument to mains power supply, thereby ensuring its uninterrupted operation. If you have a power supply, this can be done in literally half an hour.

Main materials:

• 12 V power supply. http://ali.pub/45tmu2;
• polypropylene pipe 20 mm;
• insulating tape;
• cable.

For everything to work correctly, it is important to choose a power supply that matches the parameters of a specific model of an electric screwdriver. In this case, the AIDA BSh 12 PRO unit for 12V is used. Any analog can also be used. When choosing a unit, it is necessary to look not only at its operating voltage, but also the maximum load current. Ideally, if it is at least 30A. If the current turns out to be less, then the screwdriver will not have enough torque or the block protection will start to operate under load.

Alteration of the 220 V electric screwdriver

To transfer the power of the electric screwdriver from the battery to the network, you need to get to its power contacts. To do this, you need to disassemble the body of the battery pack. The batteries present in it are removed.

Since the contacts of the batteries remain on the removed batteries, in order to return them to the case, it needs to be revised. To do this, I cut 2 short tubes from the 20th polypropylene pipe. They must be the same length as the removed battery pack. It is necessary that the pieces fit into the battery housing of the electric screwdriver.

Most likely, one of the edges of the tubes will have to be cut a little, since it will rest against the protrusions on the lid.

Next, you need to remove the contact plates from the batteries and rearrange them on the tubes. So that they fit tightly, each tube should be wrapped with electrical tape, thereby increasing the bore diameter. After that, a cable of a convenient length is soldered to the contacts, and they are finally fixed on the tubes.

Now you need to connect the cable from the terminals of the electric screwdriver to the power supply wire. It is important to observe the polarity here. The plus of the block must connect to the plus terminal, and the minus to the minus terminal. For reliability, it is better to solder the twist. Its insulation can be made with electrical tape or heat shrink.

Further, the contacts with the tubes fit into the battery case. To do this, a side hole is made in it right at the junction with the cover for entering the wire. To prevent the tubes with contacts from moving and falling out, everything is fixed with hot melt glue. For reliability, it can also be applied to the junction of the case with the lid so that it does not open.

Now, when the power supply is plugged into an outlet, the electric screwdriver can operate on the mains for as long as necessary without recharging.

How to convert a 220 V electric screwdriver using a computer unit

This is one of the easiest and most accessible instructions to quickly revive your electric screwdriver with batteries barely alive or completely out of standing. After all, finding an old power supply from a computer is pretty easy. It does not need to be remodeled, even if your electric screwdriver is 18 Volt and the block is 12 V. For small tasks, the difference will not be very noticeable. Well, if the instrument is 12 V, then, as they say, everything is as it should be.

The power of the block, even from a very old computer, will be quite enough.

Do-it-yourself alteration of an electric screwdriver for 220V power supply

We disassemble the battery compartment of the electric screwdriver.

We remove the batteries and dispose of them appropriately.

But after biting off from them the connection contacts to the block.

We take a two-core piece of wire with a length of 1.5 meters and a cross section of 4 sq.mm.

We solder the wires to the contacts of the block.

At the end of the connection side, in the center we drill a hole for the screw.

Since the battery is no longer in the case, the bolt will now hold the block. We drill a hole and glue the nut on hot glue so that it is convenient to tighten it at the time of assembly.

Drill a hole for the wire on the side of the base and pass it.

In order not to rip out the wire during operation, we will tie the edge with electrical tape.

From the old motherboard of the computer, we unsolder the connector for connecting the unit. Solder the end of the wire to it.

We proceed to finalizing the block. If you turn it on immediately, it will not start. It is necessary to close the trigger contacts. Usually there is a wiring diagram on the case.

In this block, you need to short the blue wire to the black one. general.

Checking. The block has started. the fan inside spun.

The updated tool perfectly wraps self-tapping screws and does not require recharging time.

How to convert a 220 V electric screwdriver using a computer unit

This is one of the easiest and most accessible instructions to quickly revive your electric screwdriver with batteries barely alive or completely out of standing. After all, finding an old power supply from a computer is pretty easy. It does not need to be remodeled, even if your electric screwdriver is 18 Volt and the block is 12 V. For small tasks, the difference will not be very noticeable. Well, if the instrument is 12 V, then, as they say, everything is as it should be.

The power of the block, even from a very old computer, will be quite enough.

Do-it-yourself alteration of an electric screwdriver for 220V power supply

We disassemble the battery compartment of the electric screwdriver.

We remove the batteries and dispose of them appropriately.

But after biting off from them the connection contacts to the block.

We take a two-core piece of wire with a length of 1.5 meters and a cross section of 4 sq. Mm.

We solder the wires to the contacts of the block.

At the end of the connection side, in the center we drill a hole for the screw.

Since the battery is no longer in the case, the bolt will now hold the block. We drill a hole and glue the nut on hot glue so that it is convenient to tighten it at the time of assembly.

Drill a hole for the wire on the side of the base and pass it.

In order not to rip out the wire during operation, we will tie the edge with electrical tape.

From the old motherboard of the computer, we unsolder the connector for connecting the unit. Solder the end of the wire to it.

We proceed to finalizing the block. If you turn it on immediately, it will not start. It is necessary to close the trigger contacts. Usually there is a wiring diagram on the case.

In this block, you need to close the blue wire to the black one. common.

Checking. The unit started up. the fan inside spun.

The updated tool perfectly wraps self-tapping screws and does not require recharging time.

How to convert a 220 V electric screwdriver using a computer unit

This is one of the easiest and most accessible instructions to quickly revive your electric screwdriver with batteries barely alive or completely out of standing. After all, finding an old power supply from a computer is pretty easy. It does not need to be remodeled, even if your electric screwdriver is 18 Volt and the block is 12 V. For small tasks, the difference will not be very noticeable. Well, if the instrument is 12 V, then, as they say, everything is as it should be.

The power of the block, even from a very old computer, will be quite enough.

Do-it-yourself alteration of an electric screwdriver for 220V power supply

We disassemble the battery compartment of the electric screwdriver.

We remove the batteries and dispose of them appropriately.

But after biting off from them the connection contacts to the block.

We take a two-core piece of wire with a length of 1.5 meters and a cross section of 4 sq. Mm.

We solder the wires to the contacts of the block.

At the end of the connection side, in the center we drill a hole for a screw.

Since the battery is no longer in the case, the bolt will now hold the block. We drill a hole and glue the nut on hot glue so that it is convenient to tighten it at the time of assembly.

On the side of the base we drill a hole for the wire and pass it.

In order not to rip out the wire during operation, we will tie the edge with electrical tape.

From the old computer motherboard, we unsolder the connector for connecting the unit. Solder the end of the wire to it.

We proceed to finalizing the block. If you turn it on immediately, it will not start. It is necessary to close the trigger contacts. Usually there is a wiring diagram on the case.

How to turn a damaged 220v drill into a 12v battery drill

In this block, you need to close the blue wire to the black one. common.

Checking. The unit started up. the fan inside spun.

The updated tool perfectly mesmerizes self-tapping screws and does not take time to recharge.

The benefits of rework

The home craftsman rarely uses fitting and assembly tools. The cordless electric screwdriver lies idle for a long time. And during this period, an arbitrary discharge occurs in the power source, which leads to changes in the internal structure.

Having remade an electric screwdriver for 220 volts, the home craftsman gets the following advantages:

• no time-consuming charging required;
• storage does not entail violations in the design of the tool;
• mains supply provides constant torque.

DIY Cordless Screwdriver (part 1) | Torque Adjustable Screwdriver under 15

The minus of the converted electric screwdriver is one: connection to the mains.

Important! A battery that has been disassembled and removed from the housing must not be thrown into the trash can. It is disposed of in specialized services.

Step-by-step instruction

• Disassemble the battery: unscrew all the screws hidden under the stickers. The batteries inside are interconnected. Two wires fit to them: red and black (-).
• Cut off the wires from the batteries. It is necessary to cut off from the elements, and not from the battery contacts.
• Connect the wire to the open contacts of the charger by soldering, after pretreating the brass terminals with phosphoric acid. This will ensure a reliable connection between brass and copper cable.
• Insulate the joints.
• In the case where the batteries were located, insert a weight as a counterweight.
• Solder the battery leads inside the case to the free contacts of the cable, observing the polarity. If polarity is reversed, the tool will work but rotate in the opposite direction.
• Connect the plug to the network and check if it works.
• Additionally, in the housing of the electric screwdriver, make a hole for the wire on the left side. To ensure a snug fit, make a “lock” of duct tape.

What is needed for rework

• charger included with the cordless electric screwdriver;
• electric cable (multicore);
• worn out battery.

In addition to the above, you must prepare an insulating tape, a screwdriver, a soldering iron, solder and phosphoric acid for soldering.

How to convert a 220 volt electric screwdriver correctly

When the batteries fail, you have to think about how to remake an electric screwdriver for 220 volts. Replacing an energy source is sometimes too costly and troublesome. Some types of batteries are almost impossible to find on sale.

Power supply recovery

If the power supply is inoperative, external sources are suitable for replacement:

• power supply unit from a PC or laptop;
• car charger;
• homemade power supply.

Alteration of power supplies from any other devices consists in connecting a low-frequency cable to the charging outputs. Reliable and durable operation will be provided by a power supply unit with a capacity of 300. 350 watts.

Laptop chargers with an output voltage of 12 to 19 volts are suitable for resuscitation of the instrument. In this case, the output plug is removed, the wires are stripped and soldered to the cable of the required length.

A reliable option for long-term work will be a power supply from a computer. Its advantages are the presence of a cooler in the design, which prevents overheating of the transformer.

Converting a 220 volt electric screwdriver is quite simple. The procedure does not require material costs. The converted tool will last more than one year, provided that the master does everything correctly.

Car battery charger

The requirements for this device are the same as when using the computer unit.

If so, it is advisable to use a device with a built-in voltmeter and voltage regulation. In some models, a current-limiting resistance is installed inside. It must be short-circuited.

Assembling a serviceable battery from two that have lost capacity

From two defective devices, one can be assembled, suitable for operation.

Important! By connecting the power supply unit to the case of the defective battery, the second repaired one will provide mobility when performing small amounts of work.

Battery cell types

These devices use elements of different types and voltages, each of which has its own advantages and disadvantages.

The most common. nickel-cadmium (Ni. Cd) voltage 1.2V.

• low price;
• stored in a discharged state.
• have a memory effect;
• high self-discharge;
• small capacity;
• low number of charge / discharge cycles.

advanced 1.2V nickel metal hydride (Ni-MH).

• lower memory effect and self-discharge;
• large capacity and number of charge / discharge cycles.
• higher price;
• poorly tolerate low temperatures and storage in a discharged state.

The most advanced 3.6V lithium-ion (Li-Ion).

• lack of memory effect;
• very low self-discharge current;
• high specific capacity, allowing to reduce the weight and dimensions of the device;
• the number of charge / discharge cycles many times higher than other types of batteries.
• high price;
• loss of capacity three years after manufacture.

Built-in power supply in the battery case

If there is a desire, time and “straight” hands, the unit can be placed in the battery case. For this, a ready-made device with the appropriate parameters is purchased, removed from its case and mounted in the battery case. The leads are soldered with a wire with a cross section of at least 1mm² to the battery terminals, and the power cord is changed to a longer one.

Important! If there were ventilation holes in the power supply case, then it is necessary to make the same in the new design.

Conversion of an electric screwdriver to mains power

A screwdriver is a tool designed for driving screws and drilling small holes. There are mains, powered from a 220V network and rechargeable, with two replaceable batteries.

If the battery in such devices fails, then there are three options:

• replacing the battery is expensive, in a budget class device the price of a set approaches the cost of a new device;
• repair is not always possible, and in some cases its cost is comparable to the cost of new batteries;
• conversion of a cordless screwdriver to a network.

This article describes how to power an electric screwdriver from a 220v network, or how to make a network out of a cordless screwdriver.

Electric screwdriver battery design

The battery device does not depend on the brand. In all devices, the design of the batteries is similar and differs in appearance, body and contacts.

The body contains several elements connected in series. Their number depends on the voltage of each cell and the battery as a whole. When using the most common nickel-cadmium cells with a voltage of 1.2V, 10 pcs are needed to power a 12V device. Battery capacity is indicated in ampere-hours.

Interesting. With a series connection, the output voltage rises, but the capacitance does not change and is equal to the capacitance of individual elements.

Alteration of an electric screwdriver for power supply from a 220V network

If the battery fails and it is impossible to repair it, the only way out is to convert the cordless electric screwdriver into a network.

Making Battery Powered Drill Machine,Screwdriver From Scrap 220v Drill Machine

In this case, the power of the power supply unit must exceed the power of the motor, taking into account possible overloads at the time of the completion of tightening. It is not indicated in the passport of the device, but this parameter is written on the body of the electric motor, or it can be calculated by connecting the device to a constant voltage source through an ammeter. For a 70W motor, a 120W power supply is sufficient.

Important! The charger is not powerful enough to operate. When converting a cordless screwdriver to a 220-volt mains screwdriver, you must use a different power supply.

Using an external power supply

The external power supply device has larger dimensions than the built-in one, but in any case, if the electric screwdriver is powered from the mains, the tool will be “tied” with a wire to the outlet.

The current coming from the power supply reaches 10-15A, so the cable cross-section must be at least 1mm².

Interesting. The screwdriver can be powered from an old car battery or from a car through the cigarette lighter socket.

AC adapter for an electric screwdriver in a battery case

If your tool is not too powerful, you can place the power supply in the handle or case from damaged batteries.

We build in a ready-made power supply

To do this, you need to purchase a ready-made block with suitable characteristics and dimensions. There is enough such good on the radio markets.

Take the body with you and go to the fitting. When the desired power source is purchased, carefully separate it from the case.

We place an electric screwdriver in a battery box. All components must be securely fastened.

If necessary, extend the wires connecting the control board and the transformer. If the circuit touches the metal parts of the transformer during operation, a short circuit will occur.

Since the space in the case allows. separate the board and the transformer for better cooling. Whichever quality power supply you choose, the load will be high and overheating is possible.

It will not be superfluous to fix additional radiators on the power control microcircuits. Operate the electric screwdriver for a long time, disconnect it from the mains and touch the radio parts on the control board.

You yourself will understand which elements need heat dissipation. Holes for air circulation can be made in the housing.

Do-it-yourself alteration of the power supply unit will not take much time, and the cost of the purchased module is incomparable with restoring the battery’s performance.

Conversion of an electric screwdriver from a battery to a mains supply

Those who have used a cordless electric 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 is preserved, 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 we understand that a powerful 220 volt electric motor can be compact.

Battery Disadvantages

There is nothing wrong with that, but you should be aware that the manufacturer saves as much as you do. Consequently, the most expensive unit (and this is the battery) will be the cheapest when bundled.

As a result, we get an excellent tool with a serviceable motor and not a worn gearbox, which does not work due to a poor-quality battery.

There is an option to purchase a new set of batteries, or replace faulty batteries in the unit. However, this is a budget event. Cost comparable to buying a new electric screwdriver.

The second option is to use a spare or old battery from the car (if you have one). But the starter battery is heavy, and the use of such a tandem is not very comfortable.

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 strength! Accordingly, the 12-19 volt power cord should have a larger cross section than 220 volts.

There is a way out. reworking an electric screwdriver into a 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. Especially since you give new life to a broken instrument.

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

Making a homemade power supply

If you are familiar with the principles of building electrical circuits, you can make your own power supply. Scheme giving general concepts. in the illustration.

The transformer can be picked up from an old tube TV, or other household appliances. Power for 220 volts 250-350W. The main thing is the power supply. the donor should not be pulsed.

The voltage on the secondary winding is 24-30 volts. The secondary winding is made of a wire of the corresponding section.

However, if the output winding current is at least 15 amperes (see transformer specification), there is nothing to worry about.

After losses on the diode bridge (1-1.5 V on the diode), you will get the required output value.

If you have an electrical engineering education, make the calculation yourself. Or in a practical way: by connecting a 220 volt 100W incandescent lamp as a load, measure the output voltage. E

If it exceeds the needs of an electric screwdriver, reduce the number of turns of the secondary winding of the transformer.