Screwdriver is necessary on the farmtool, but time comes and its energy source - the battery stops working. Models are constantly changing and finding the right battery can sometimes fail. However, you can completely restore it or extend the service life by 2-3 years. The article tells how to repair a screwdriver battery.
Solving the question of whether it is possible to restorethe battery of a screwdriver, it is necessary, first of all, to understand how to extract elements from it. The battery is housed in a plastic housing of two halves. First, unscrew the connecting screws. If the connection is made with glue, then you have to tinker with a screwdriver or a chisel. Disassemble should be carefully, so that you can then seal the case again.
Inside there are elements connected in series. In some designs, a parallel-serial connection is used.
Solving the problem of how to recover a batteryscrewdriver, it is necessary, first of all, to identify faulty banks that spoil his work. If the battery is dead, you need to charge it, and then check the voltage on all cells. It should not differ from the nominal value by more than 10%.
Ремонт заключается в том, как восстановить capacity of the screwdriver battery as a whole. It affects the health of each element. It must have a specified capacity, which is understood as the ability to feed the load connected to it. Sometimes it is better to replace the failed components, which are quickly discharged. They can be detected by corrosion damage or the presence of characteristic traces of electrolyte on the surface.
One or two elements can be a serious hindrance in the work of the entire line.
Если батарея применяется более 3-х лет, то most items may be faulty. In this case, it is better to replace them all. It is important that they are suitable for voltage and size. The cost of batteries collected separately, lower than the new assembly.
The health of each can is checked by valueinternal resistance, which should be about 0.06 ohms. To do this, connect the load to it (a resistor of 5-10 ohms) and at the same time determine the current and voltage. It is convenient to use low-voltage incandescent lamps. Measurements are made with two different resistances, constituting, respectively, 30% and 70% of the permissible load. From the 1st voltage the 2nd is subtracted, and from the 2nd current - the 1st. Then the results of the subtraction are divided and, in accordance with Ohm’s law, we find the internal resistance of the battery.
The battery is often sold with a spare.Of the two, you can collect one and there will still be banks in stock. It is desirable to use them somewhere as power sources, for example, for a flashlight with a car lamp.
After diagnosis, validated itemsare going to lineup. Selected kit must be soldered in the same manner. The can body has a negative polarity, and the middle bus has a positive one. Then, without assembling the battery, you should connect the charger to it. At the same time it is necessary to control the temperature of the elements. If they are working, then there should not be a strong overheating. After the charging time has elapsed, and after one day, the voltage should be measured on each element. If a battery “sits down” by more than 10%, it needs to be replaced with a new one. After the battery passes the test, you can finally assemble its case. The fastening screws are screwed into place according to size, and acetate-acrylate (“Super-glue”) is used as the glue. With proper selection of elements, the battery will serve as new. After charging, it should be subjected to intensive training, creating a maximum load for the screwdriver until it is discharged. Such cycles should be repeated 2 more times, and then - 1 time per quarter.
Non-tested batteries are not necessary.hurry to throw away. The main reason for their failure is the evaporation of water through a sealing gum located between the body and the middle tire. When it has a full "zero", the battery is briefly charged with a pulsed power supply of 12 V through a resistance of 40-50 Ohms. At the same time it is necessary to control that the case did not overheat. If after this there is still no tension on it, the jar can be thrown away.
To restore the electrolyte, some craftsmenin the side of the recess of all batteries, the batteries drill mini-holes for the syringe needle. Then the jars are filled with distilled water. After the batteries should lie down for a day. The battery is then “trained”, charged and checked for voltage on each element. The holes are sealed with silicone.
The batteries inside look alike. They consist of consistently welded cans. The result is the total battery voltage at the output contacts. The elements apply the following types:
Screwdriver "Interskol" is one of the most popular, thanks to its versatility. In addition to the main function, it can also serve as a drill.
Lithium-ion batteries do not have this disadvantagehave, but have a much higher price. During operation, when every minute is counted, a small charge is often required to maintain the required power of the screwdriver. Here, such batteries are indispensable, since their capacity can be quickly restored.
The battery of the screw gun "Interskol" the buyer chooses independently, depending on preferences, possibilities and the required work. In most cases, use nickel-cadmium batteries.
How to repair a battery screwdriver"Interskol" if it is not used for a long time? During operation, care should be taken to ensure that the voltage does not drop to zero. For a 1.2 V can, the discharge is made to 0.9 V. If it is completely discharged during long-term storage, the charger may not “see” it. It is necessary to "push" the battery with another, more powerful source of current, so that a small voltage appears on it. After that, you can connect it to a regular charger.
Before recovering the batteryscrewdriver "Makita", you first need to disassemble its body. It consists of 2 halves connected by glue. If the battery case is gently tapped with a rubber hammer, the glue will fall off. Some places may have problems with disassembly. There may need additional hand tools. Next, you should disconnect the halves of the case, holding the terminals with a screwdriver.
According to the performance of the drill-screwdriver"Makita" is approaching a network tool. Autonomous power supply is provided by 2 replaceable Li-Ion batteries. Computer charging technology allows you to recover them in just 22 minutes. At the same time, battery life is significantly increased.
Faulty jars should be replaced with similar ones.new models. If they are difficult to find on sale, it is necessary to assemble one of two batteries. Factory welding may be contact, and during the repair will have to create a joint by soldering.
Bosch screwdrivers are great fornon-professional application. They have batteries with Ni-Cd cells. They withstand high load currents, but quickly self-discharge (in 3-4 weeks). At least once a month, they must be restored so as not to fail. In addition, elements are unbalanced during operation and capacity is lost over time.
One of the ways to restore is disassembling the body and “training” each element separately. If this helps a little, some of them will have to be replaced. Then the battery will last for a long time.
Как восстановить аккумулятор шуруповерта Hitachi?Both Ni-Cd batteries must be charged, after which they should be disassembled and the voltage measured at each bank with a load of 1.5 ohms. Elements showing lower voltage can be thrown away, and from whole ones you can collect one high-quality battery. Only 1 or 2 banks can spoil the impression of the battery. How to restore the battery of the Hitachi screwdriver, as well as all other models, depends primarily on the type of elements installed in them.
В комплекте с шуруповертом продаются 2 Li-Ion battery. If one of them does not charge, it still does not indicate its malfunction. It is possible that it is too discharged. To do this, you can try to "train" the battery by applying a pulse voltage to it, and then put it on charge. The easiest way is to connect for a few seconds to a charged battery.
After restoring the battery of the Aeg screwdriver by the above method failed, its body should be disassembled and inspected each can.
How to repair a battery screwdriver?There are several ways. Before you disassemble it, you should try to find the cause of the malfunction, which may also lie in the mechanism or the charger. Observing the rules for operating the battery, set out in the instructions, you can significantly extend its life.
