How To Solder Batteries Together With A Screwdriver

Do-it-yourself screwdriver battery repair with battery replacement Hello! Today we will repair the battery of the screwdriver. Did you know that the history of the creation of the screwdriver goes back to the deep Middle Ages?

Dismantling the screwdriver battery

Let’s start repairing the screwdriver battery. We remove the battery from the handle of the screwdriver and unscrew the three self-tapping screws that are located under the sticker below.

How To Solder Batteries Together With A Screwdriver

After unscrewing the screws, carefully push back the hooks of the latches, as on. And remove the bottom of the plastic battery case.

Inside we see lithium-ion cans Chinese company HighStar model ISR18650-1300 Li-Ion. This means that the batteries have never been changed. Because it is known that Interskol purchases batteries from this company and inserts them into almost all of its battery tools.

Below you can see the insides of the screwdriver’s battery in all its glory with cans in the amount of three pieces, which were produced already in 2011. These batteries lasted five years during active use at a construction site. So the result is very decent. Usually they die earlier, probably they were not exploited in cold weather.

To replace the battery banks, you need to disassemble it even more. I advise you to remember the location of the plus, minus and charging contacts, so as not to confuse the wires when reassembling.

Pay attention to the voltage control board on the batteries, especially stabilizers and protective diodes on it fail. It is imperative to ring suspicious radio elements on this board with a multimeter.

We check the voltage at the output of the battery, it turned out 4.4 volts, and it should be 3.7 x 3 = 11.1 volts in the norm and 10.8 volts with the minimum battery charge. In general, the banks are dead; they need to be changed unambiguously.

Do-it-yourself screwdriver battery repair with battery replacement

Hello! Today we will repair the battery of the screwdriver. Did you know that the history of the creation of the screwdriver goes back to the deep Middle Ages already in the 15th century, when the knights put on armor before the battle, and the squires helped them twist parts of the armor, guess what? A screwdriver!

This went on for a long time, until in 1907 the Canadian inventor Peter Robertson patented the Robertson screw with a standard square hole, into which a screwdriver tip was inserted. Since that time, screws have been produced on an industrial scale and used in households. Later, in 1934, inventor Henry Phillips redesigned the head of the screw and a Phillips screw was introduced into which the corresponding screwdriver was inserted. By that time, the engine had already been invented and the idea of ​​creating a rotator of screws and screws was in the air. However, there were big problems with the batteries, their weight and dimensions. The problem was solved only in the 1980s, when the first nickel-cadmium Ni-Cd and lithium-ion Li-Ion rechargeable batteries appeared.

The USA and Japan were the first to master the production of household and professional cordless drills and screwdrivers. All this happened thanks to the emergence of new energy-intensive batteries of electricity. We will urgently change them inside the Interskol DA-10 / 10.8 ER cordless drill-screwdriver that fell into my hands. The malfunction was like this when the button was pressed, the engine simply did not spin, but the LED lit up, the truth was weak.

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We continue to disassemble the battery of the Interskol screwdriver

This can be done in several ways, you can unsolder the wires that go to the board.

You can also simply remove the contacts from the top battery cover. Shown is the shape of the bent contacts so you can easily remove them yourself.

Under the plastic cover we see how the batteries are connected to each other. Them spot welded. This solution is used in almost any battery of another tool. This is a safe and gentle battery connection. In this case, the destructive heating of the lithium batteries themselves is minimal.

Gently tear off or bite off the metal tape with pliers to detach the cans from each other. From the side of the board, they were also connected together with a tape and put on glue on a cardboard pad. This is done so as not to short-circuit anything on the board. Remember to put it back in place when reassembling the battery.

Due to the lack of a spot welding machine, new lithium-ion batteries will be soldered very quickly with a well-heated powerful soldering iron. We remember that heating lithium-ion batteries reduces their service life and is generally explosive.

Pay particular attention to the condition of the wires inside the battery. They can be broken or frayed. They need to be qualitatively isolated or replaced with fresh ones. Since I was repairing a screwdriver battery on the road in the field, I had to apply a brilliant invention of the engineering mind. He took out a blue radio technical tape.

When disassembling the battery of the Interskol DA-10 / 10.8 ER screwdriver, I was pleasantly surprised to find a temperature sensor in the budget screwdriver to control the temperature of the batteries. It turns out that when the lithium cans overheat, the protection circuit cuts off the power until the temperature returns to normal. True, the owner never managed to drive him into such a regime. We carefully tear off this thermal sensor so as not to break it, then we will place it in the same place on new cans.

Solder batteries

Can be done in different ways, for example with thick wires. I decided to solder a torn-off metal strip taken from old cans. First, I tinned the tapes in the places of future contacts on both sides. Later I tinned the battery contacts with a well-heated soldering iron with a drop of solder. But so that they do not get too hot, let them cool down. Then he pressed the tape to the contacts of the cans and soldered the tape again without overheating the battery cans.

The minus leads are the hardest to solder, but with a good flux, things go very quickly. True, then it is better to wash the flux afterwards to clean the insides of the battery.

When assembling, do not forget to replace the cardboard gasket between the banks and the board. This is so that the fresh soldering does not short-circuit anything on the board.

This completes the repair and restoration of the lithium-ion battery of the Interskol DA-10 / 10.8 ER screwdriver. Almost all batteries are repaired in much the same way. Popular manufacturers of screwdrivers: Bosch, Makita, DeWALT, Metabo, Hitachi, Elitech, Skil and my favorite Bison. This concludes my story about the repair of a screwdriver battery. Ask questions in the comments. Better yet, in the appropriate thread on our forum or write to the Solder Master personally by mail.

Best regards, Solder Master. Happy repairs!

Repairs

The battery cover was secured with four screws. Having unscrewed them, I saw that the jumpers (plates) between the batteries were simply broken.

Jumpers to batteries are usually spot welded. Since I do not have such welding, I always solder the jumpers with a soldering iron with ordinary solder.

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For repairs I needed:

  • Soldering iron;
  • Sandpaper;
  • Flux;
  • Solder.

When replacing or repairing torn cans, first of all, I clean the rations with sandpaper. In order for the tinning to be of high quality, it is necessary to clean as thoroughly as possible the quality of the soldering itself will depend on this, which, in turn, will also affect the throughput of the current passing through it.

Next, I apply the soldering flux and a puddle of places for the rations of batteries and plates.

Instead of a flux, you can also use rosin (in this case, it is not very convenient), soldering acid (some destroy soldering, toxic fumes over time), an aspirin tablet (strong smell when melted). I do not recommend using the last two methods at home.

In conclusion, observing the polarity, I solder the torn off batteries into place and collect the battery.

It seems that there is nothing easier than picking up a soldering iron and soldering the batteries into place with simple manipulations, but not everything is so simple when soldering nickel-cadmium (Ni-Cad), nickel-metal hydride (Ni-MH) and similar batteries, there are some nuances. Failure to comply with the subtleties can lead to both the unusability of the battery (a sharp drop in capacity) and its charger.

DIY screwdriver battery repair

The screwdriver is one of the hand tools that every craftsman should have in his arsenal. If handled correctly, it can last for many years. But when repairs are underway, anything happens, and if dropped even from an insignificant height, he or his battery may be damaged and stop working. This is exactly what happened to the tool that was brought to me for repair. When the screwdriver fell, the battery failed (found out by rearranging the worker). This problem can be easily solved on your own, without spending money on a new tool!

Tips

If you decide to repair a broken battery yourself, be sure to pay attention to the following points!

The batteries are connected in series, i.E. The minus of the battery to the plus of the next, etc.

On batteries, the polarity is sometimes not indicated in such cases, it is advisable to recognize it with a multimeter (as a rule, a convex and smaller end plus).

If there is no device, then you need to see how other banks are connected to each other and solder in the same sequence.

Ni-Cad, Ni-MH and similar batteries are very sensitive to high temperatures, so contact between the soldering iron and the battery should be minimized! In this case, the soldering iron itself is better to take more powerful (60 watts and above), so that, with a short touch, it will have time to half-time and solder the soldering point, but without having time to heat up the battery body itself.

At home, it is better to use flux or rosin for tinning and soldering.

Correct selection of hydraulic drill. However, you need to decide on how to connect the two batteries to each other.

The first way: serial connection: the jumper is thrown over the terminals: its own jumper to the minus, its own jumper to the positive, then the remaining two opposite terminals of the two batteries are connected to each other, but the positive and negative wires are connected to the rest of the vehicle’s electrical system.

Second way: parallel connection: with this type of connection of two batteries, the jumper is thrown as follows: the negative and positive terminals of the batteries are connected, then the wires are diverted from the paired batteries, which are connected to the rest of the car’s electrical system.

After the batteries have been connected together, you should install either a switch or a switch between them.

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This step will use the energy resource of only one battery. For example, when the engine is off, the car light will work, or the audio system.

If the engine of the vehicle is on, then the energy required for the operation of electrical appliances in the car is generated by a special generator. But, however, much more fuel is spent in a vehicle, and this, in turn, leads to incredible fuel costs.

Transformer differential protection principle of operation

The principle of operation and design of the alternator. Conclusion

Summing up the above, it is worth saying that installing a peripheral battery in a car will be the most excellent solution. Now you can not be afraid of a sudden discharge of the battery, and subsequent problems with obtaining a spark for ignition.

But the second battery will be effective only when it has been installed and connected to the first in accordance with generally recognized recommendations and norms. Incorrectly connected batteries will become a real headache for a car enthusiast. When choosing a battery, it is necessary to focus not only on size, capacity and brand, but also to clearly understand the purpose of the battery and its scope. For example, there are starter and traction batteries designed for different purposes.

Write comments, additions to the article, maybe I missed something. Take a look at the sitemap, I will be glad if you find something else useful on my site.

Why is a second battery needed?

Summing up the above, it is worth saying that installing a peripheral battery in a car will be the most excellent solution. Now you can not be afraid of a sudden discharge of the battery, and subsequent problems with obtaining a spark for ignition

But the second battery will be effective only when it has been installed and connected to the first in accordance with generally recognized recommendations and norms. Incorrectly connected batteries will become a real headache for a car enthusiast. When choosing a battery, it is necessary to focus not only on size, capacity and brand, but also to clearly understand the purpose of the battery and its scope. For example, there are starter and traction batteries designed for different purposes.

Write comments, additions to the article, maybe I missed something. Take a look at the sitemap, I will be glad if you find something else useful on my site.

Correct selection of hydraulic drill. Transformer differential protection principle of operation

For the successful implementation of this operation, you should follow the following tips:

  1. It is essential that both the first and second battery are in perfect condition. As you know, rechargeable batteries, after a certain number of charge and discharge cycles, begin to deteriorate, become unusable, and, as a consequence, discharge faster. If you connect an old battery to a new battery, the old battery will absorb energy from the new one, and eventually both batteries will be discharged. This, in turn, will not allow starting the power unit.
  2. Use a switch for the second battery. This device will use the energy of the first battery, but will keep the charge of the second charging capacity. This will also allow you to always remain confident that you can safely sit down and leave.
  3. In order not to damage the electrical wiring of the vehicle, it is worth using a more powerful generator, or installing another one.
  4. Rechargeable batteries must be of approximately the same capacity, but if the batteries are of different capacities, this can lead to failure of the batteries.
  5. It is necessary to use short cords to connect the batteries, then the process of these batteries will be most efficient.

So, having tried to comply with these recommendations, you can make your leisure time outdoors, fishing, hiking or hunting truly colorful and unforgettable.