How to extend the life of a screwdriver battery

How to extend laptop battery life:

  • the battery cannot be stored for a long time. It is advisable to keep the battery half charged, but not fully charged. this also negatively affects the service life;
  • the laptop battery is not charged to 100% of its capacity. Ideally, the battery should start charging at 40% charge and stop at 80% charge. This extends battery life. in some cases more than fourfold;
  • completely discharge the battery in order to calibrate the meter. This should be done once every two months. Otherwise, the flowmeter will lose accuracy, the laptop will shut down even when the indicator shows that it is charged;
  • battery life is critically affected by temperature. The limits in which the laptop is used: 5 to 45 ° C. Optimal mode: 15 to 25 ° C. Dangerous overheating of the laptop battery. This can cause the power supply to quickly exit, or even explode.

extend, life, screwdriver, battery

3 Ways to Extend Laptop Battery Life

All laptop batteries are lithium, so regardless of the specific model, over time, their capacity decreases.

3 ways to improve battery life:

  • enabling a mode in which the processor and video card operate at reduced frequencies. These are the most power-hungry parts of the notebook, and enabling Saving Mode will reduce power consumption. This is done like this:
  • “Control panel” (item “Power supply”);
  • Home / Desktop mode.
  • disconnection of the modem, network card, infrared port, and other unused ports, such as VGA, Wi-Fi, Bluetooth. Reduce display brightness to minimum acceptable level.
  • an increase in the amount of RAM. The modules themselves consume a little power, but when there is more RAM, the system accesses the hard disk less often, performance increases, and power consumption decreases.
  • So if you want your laptop to last a long time, use the tips that are outlined above.

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    How to convert a battery device to a screwdriver from a 220 volt network

    Today the screwdriver belongs to the devices that we very often use in everyday life. It is also irreplaceable in production. This device is suitable for a variety of electrical and construction work. With its help, furniture and other items are assembled, the design of which requires threaded connections.

    The cordless screwdriver is compact and portable. But not everyone is happy with these advantages, because the device quickly runs out of battery, and you have to interrupt work halfway. Therefore, many owners of this tool are interested in the question of how you can convert a screwdriver with a battery to a network.

    The reason for this decision is also the fact that when the device is not used for a long time, the battery is discharged on its own, which leads to a breakdown of the screwdriver due to the destruction of some elements. It is impossible to repair a failed battery, and it is not always possible to purchase a new one. Often, component parts can only be purchased from the official representatives of the manufacturer. Accordingly, the cost of a new battery will be almost equal to the cost of a new screwdriver. Therefore, some craftsmen come to the decision to turn the screwdriver into a network.

    Materials and tools required for this:

    • Charger from this screwdriver;
    • His native battery;
    • Soft stranded electrical cable;
    • Soldering iron and solder;
    • Insulating tape;
    • Acid.

    Cordless screwdriver battery replacement and test (before and after)

    First, you need to solder the loose ends of the cable to the terminals of the charger. You need to know that copper wires of a cable with brass contacts can only be soldered after they have been treated with acid. Experts recommend using special solder, but sometimes the simplest methods are used in the form of acid treatment.

    How to convert a cordless screwdriver to a network: 5 options for solving the issue

    Converting a screwdriver to a network using laptop charging

    In the event of a battery failure, a household screwdriver can be switched to mains power by making some changes to its design. This does not require a lot of expenditure of finance, time and effort. The positive nuances of this transformation are obvious: you do not need to constantly charge the battery, and at the same time, the forced downtime will go away. After all, the shortest duration for charging the device is more than 3 hours.

    However, when deciding to perform such a transformation with your screwdriver, you should understand that from now on you will need an alternating current to work with it. You will no longer be able to use it away from communications.

    If you need to connect the screwdriver to the network, you can use the charger from an old laptop. It has similar characteristics to a screwdriver, and it can be easily found in every home or workshop. But, nevertheless, check what output voltage is shown for your charging. In this case, chargers for 12-19V are suitable.

    Scheme of your actions:

    • We take out unusable batteries from a failed battery pack.
    • We take charge from the laptop.
    • Cut off the connector and strip the wires from insulation.
    • We solder the bare wires or wrap them with electrical tape.
    • We make an outlet for the wire in the case.
    • Assembling the structure.

    This manipulation will allow you to use the screwdriver at any moment, and without stopping for charging.

    Convenient screwdriver from the network: features of use

    The cordless cordless screwdriver is a great companion in your home. Almost everyone who he has never let down can agree with this. Those who stopped working halfway have a completely different opinion. This tool will help you always and everywhere, but exactly until the time the battery is discharged. over, the quantity in it is limited. In moments of idleness, the battery can also deteriorate. Batteries usually last no more than three years. When this time expires, it has to be changed or sent to the museum of obsolete things. The situation is possible if you convert the screwdriver into a network one. There are enough ways to do this.

    The power supply unit of the device provides the function of changing alternating current with a voltage of 220 V. Standard screwdrivers consume a constant current, with a nominal value in the range of 9-18V. In this regard, connection to the network is carried out subject to the use of an electronic transformer. For these purposes, products of the Toshibra and Feron brands are most suitable.

    Mains transformers of these brands are of high quality and reliable in operation. In addition, they are quite compact, lightweight, and do not complicate the work with the tool. Their load characteristics are close to those required for a standard screwdriver. In their design there are 2 input and output wires, which allows you to supply power to halogen lamps and other types of electricity consumers with a voltage of 12V. However, to use the converted device, you need to adhere to some rules.

    Here they are:

    • Let the appliance rest for 5 minutes every 20;
    • Fix the cable at the elbow with your hand so that it does not interfere with the work;
    • Clean the power supply from dust;
    • Do not use too many extension cords;
    • Do not use the device without grounding;
    • It is forbidden to use a converted device for work at height.

    Before each start of work with the converted device, make sure that it is working properly.

    Why do you need to remodel a mains-powered screwdriver

    In order for you to be able to use a screwdriver even in the most inaccessible places without unnecessary wires, at any time, the mobile screwdriver is converted to a network.

    To carry out such a procedure is not so difficult as it seems at first glance. With the appropriate skills and all the necessary components, this process will take a little time.

    Methods for converting a cordless screwdriver into a network vary in complexity. One of them. powering the charging from a laptop practically does not require knowledge and skills. To mount a computer power supply, you need to know how to handle a soldering iron, and to repurpose a Chinese adapter, you need to know how to handle a measuring device. In addition, there are several other methods for converting a cordless screwdriver directly into a network.


    • Using a power supply device from a personal computer instead of a battery;
    • Giving new life to the car battery;
    • Using, as source, a power supply from halogen lamps;
    • By connecting the Chinese 24V power supply board.

    For brainy craftsmen, it is not difficult to perform such manipulations. If you are not confident in your abilities, then it is better not to risk it and seek the help of a knowledgeable specialist.

    How to make a screwdriver from the network

    When the batteries stop working due to the fact that they have simply outlived their life, many begin to wonder how they can fix the situation and remake their old cordless screwdriver into the network with their own hands. After all, it is no longer possible to repair a battery with a destroyed element, and the cost of a new one is almost equal to the purchase of a new screwdriver. But zealous and skillful owners came up with a way out. to power the screwdriver from the mains. Some were even able to invent a device that works simultaneously from the mains and from the battery. But it’s better not to do it.

    How to extend the “life” of a smartphone battery and how to properly charge it

    You always want to be in touch, 24 hours and 7 days a week. But as usual, the phone “dies” at the most unnecessary moment. And planning your day near the outlet is not an option.

    How can you make your smartphone battery more tenacious? It is enough to follow 7 simple tips.

    Wi-Fi, Bluetooth, and GPS should only be turned on when you actually need them. Since searching for an access point, satellite signal or Bluetooth connection primarily consumes the power of your device.

    Close applications and programs after you finish using them. For such purposes, you may need a smart task manager. Open apps in the background also kill the battery.

    Decrease the brightness of the screen. Reducing this parameter will significantly save battery power, and this will practically not affect the perception of the image from the screen. Reduce screen backlight time to minimum time.

    Forced use of the checkbox in the “Use only 2G networks” field will allow you to use significantly less battery resources and, therefore, extend the active “life” of your smartphone.

    Temperature changes have a detrimental effect on battery power. The smartphone should be protected from temperature extremes. In particular, overheating damages the smartphone’s battery, and it dries up faster. Large frost also has an adverse effect on the battery.

    Do not restart your phone or smartphone unnecessarily. Rebooting is a very energy consuming process. A vibration alert consumes much more battery power than a simple melody. If possible, it is better to turn off the vibration alert.

    And charge your phone if possible. After a complete discharge, the phone forces the battery to work in a boosted mode, which reduces its lifespan.

    In order to properly charge the battery on your smartphone, you need to follow four simple tips. These tips will significantly extend battery life.

    do not completely discharge

    In order for the battery to last longer, you need to discharge it less to zero. over, lithium batteries, you do not need to completely “kill” them. As it turned out, the less the discharge, the more power charging cycles the phone will withstand:

    The table shows the dependence of charge cycles on the depth of discharge of the battery.

    do not leave the device on charge for a long time

    The optimal charge for lithium batteries is 40-80%. The battery will last longer in this range. Do not leave your phone or smartphone to charge overnight; for such devices, two to three hours are enough to fully restore the battery capacity.

    prevention once a month

    From the advice above, the conclusion is that lithium batteries should not be fully discharged, but this is not the case. Once a month, you still need to completely “plant” and replenish the battery resource to the maximum. This allows you to calibrate the smartphone’s battery level readings.

    coolness will keep the battery

    It has already been said about the temperature difference, but as an edification, I would like to say it again. High temperatures are detrimental to lithium batteries. In particular, overheating damages the smartphone’s battery, and it dries up faster, and the lower the temperature, the longer the battery will retain its nominal capacity. The dependence of capacity on temperature is clearly shown in this table:

    The second column shows the capacity loss over a year of operation at a 40% charge level, and the third at 100% battery charge.

    These guidelines apply to lithium batteries, which are found in most smartphones. These batteries are less demanding than nickel energy sources.

    I hope these recommendations will be useful for owners of smartphones and other electronic gadgets. And the battery life will be significantly extended.

    Thanks for attention.

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    How to extend the life of a screwdriver battery?


    The oldest type of battery, in which the positive electrode is made of nickel and the negative one is cadmium, was invented in 1899. But only in the middle of the 20th century was it possible to create a sealed battery. To make it, it was necessary to solve such a problem as a side reaction of oxygen evolution during recharge (if accumulated, it could lead to an explosion).

    We solved it by increasing the capacity of the negative electrode. It is more stable, while the positive one triggers the self-discharge process. But this process takes place in a special way. The lower the charge level in the battery, the slower this process takes place. Therefore, it is advisable to leave the battery completely discharged for long-term storage.

    The properties of nickel-cadmium batteries depend on the type of electrodes used in them. Pressed ones have the best performance characteristics. The batteries in which they are used have a high capacity, withstand high discharge and charging currents, and can operate at negative temperatures. But they have one significant drawback. “Memory effect”. If you start charging before the battery is completely discharged, its capacity will be reduced. This is due to the fact that the substance in which the charge remains becomes denser and ceases to interact with electrolytes. With the help of special equipment that discharges the battery below the minimum, it can be made to work again. But the recovery effect is far from guaranteed. The user needs to follow a simple rule: “put” the battery completely before charging. If you do not do this, it can be destroyed very quickly.

    Memory effect is often confused with natural changes that inevitably occur in a battery, even with proper use. Over time, irreversible damage accumulates on the surface of electrolytes and in the working substance. The speed of these processes depends on the number of charge-discharge cycles, but there are factors that can be prevented or reduced. For example, a high temperature at which all reactions are faster. Therefore, you must protect the battery from overheating. The charge mode is also important. Here you need to follow the instructions: maintain the required time intervals, use only branded chargers.

    Nickel metal hydride

    In the second half of the 20th century, a new type of battery was developed for the space industry. It used a hydrogen-absorbing metal to make the battery smaller and lighter. Its advantages include the absence of a “memory effect”, the ability to store in a charged state. Self-discharge occurs, but much slower than in nickel-cadmium. Therefore, recharging is performed once every 2-3 months.

    Nickel-metal hydride batteries cannot be used at temperatures below 10 and above 40 degrees. Their service life is also affected by the charging process. Overheating and overcharging is highly undesirable. Therefore, to service the battery, you need to use only branded accessories.

    It is recommended to store cadmium and metal hydride batteries not at room temperature, but in a cool (but not below freezing) workshop or utility room.

    The type of battery is of great importance. Nickel, magnesium and lithium. they all have their own characteristics that determine the rules for their operation. Errors in the use of devices lead to breakdown.

    Lithium ion

    The development of a new type of battery began in the 1980s. The first, usable battery was developed by the Japanese, they used carbon as an electrolyte. The main advantage that has been gained with this invention. small size and weight with high voltage and capacity characteristics. True, devices for their use in power tools had to be equipped with protective electronics to prevent excessive discharge and overcharge, as well as from overheating.

    The last three factors significantly affect battery life. The greatest danger is a deep discharge. This must be taken into account during operation and storage. If the battery will not be used for a long time, leave it half charged and keep it at a temperature between 0 and 10 degrees.

    The disadvantage of lithium-ion batteries is the aging process that shortens their lifespan. This occurs as a result of the gradual destruction of the electrodes and the formation of non-functioning sections on them. To slow down these phenomena, regular use and charging of the battery is required. If 20% of the capacity remains, put it to charge. In this case, it is better to reach 95% capacity than 100%, since overcharging is also harmful. Only a new battery should be fully charged and discharged to calibrate its parameters.

    Working at negative air temperatures (up to 18) is not dangerous, but in no case should the battery be charged in cold weather. Overheating more than 30 degrees leads to rapid aging. Here you can advise not to leave the tool with the battery in the sun, work in the shade.

    So, when purchasing tools, do not forget about the rules for using the battery. Use them according to the type of battery. Use only the charger that is included in the kit and adhere to the mode indicated in the instructions.

    IPhone: how to extend battery life?

    The situation with a regular smartphone and an iPhone does not differ much. The principles are the same here. It should be noted that the iPhone is more stable, battery breakdowns occur less often. Apple also makes advanced fast and remote charging devices. They can be used without harm to the “apple phone” and your wallet.

    How to properly charge your phone battery?

    The main factor that affects the health of your phone battery is how you charge the device. For example, we are used to putting the smartphone on charge in the evening, going to bed, and disconnecting the gadget from USB in the morning, when 100% charge has long been reached. This is wrong and leads to breakdowns. It is better to charge the gadget during the day, wait for 99%, and then unplug it from the outlet.

    If you charge the device for too long or do frequent “micro-charging” by a few percent, the consequences will be the following: reduced capacity and reduced power. Battery power will be consumed much faster and the maximum charge level will be significantly reduced.

    Many experts also advise against using fast charging devices. The current strength in them is very high, and this negatively affects the safety of the lithium-ion battery. Better to stick to the 20/80 rule. The charge level should not fall below 20%, but it is better not to charge the phone above 80% either. In real life, this can be difficult to achieve. and it is not a problem. If the smartphone reaches critical levels several times, you will not feel the negative consequences immediately.

    If you are thinking about how to extend the life of a battery, then just work out a charging schedule for yourself. To begin with, how to properly charge the smartphone battery for the first time. At this point, the battery is empty and you need to charge it to 80% for the first time. If you are driving out of town, you can bring the indicator up to 100%. Then the phone will last a long time, and the charge will last for days, depending on the initial characteristics of the device.

    How to extend the life of your smartphone battery: 5 simple tips

    The phone battery is one of the most vulnerable parts. Most often, the first visit to the service center is associated precisely with its breakdown. Just closing your eyes to a poorly working battery will not work. this greatly affects the usability of the device. So how do you extend the life of your smartphone battery? Is it possible to do something for this so as not to bring the situation to the replacement of the battery?

    What else can you do to extend the life of your smartphone battery?

    Not only does the wrong charging schedule affect the capacity and power of the battery. There are other factors as well. Among them is the battery life of the smartphone. Gradually, the part breaks down, and nothing can be done about it. The battery will have to be changed every few years. The main thing is that this moment does not come too early.

    The breakdown of the smartphone is “spurred on” by banal things: the fall of the gadget on the floor or asphalt, overheating, hypothermia, the owner using a broken USB. If you feel that your phone is overheating, put it aside. Hold the phone in your hands carefully so as not to drop it. Also, initially buy phones with a good battery. Then you don’t have to worry about its capacity and power. Manufacturers have already thought about how to protect you from multiple visits to the service center. And in extreme cases, there is always a long warranty and service centers of the brand, where they will help you quickly and efficiently solve the problem.

    Improved battery screwdriver recovery method

    What was suggested:

    • before carrying out any manipulations with the supply of a pulse current and charging, the author of the method selected elements from the assembly, the voltage at which was zero;
    • a hole was made in their body with a micro drill and a thin drill;
    • a cubic centimeter of distilled water was pumped into the hole of each element;
    • after that the batteries were allowed to stand for some time and their voltage was measured. Elements with zero voltage “cheered up” with impulse current;
    • then the cells were charged;
    • after that, it is recommended to leave them for a few days, and then check the voltage again;
    • if the elements are alive, then the holes are sealed with sealant or sealed. The battery is collected, charged and the screwdriver is ready for use;
    • if the voltage is again zero, then another “cube” of distilled water is added, and the process is repeated until successful completion.

    You might be interested in an article on how to check the battery capacity of your phone.

    Almost every battery in a power tool is the most expensive part. The screwdriver is no exception, because a replaceable battery can make up 30% of the total cost of the tool. After the device is discharged, it is necessary to purchase a new screwdriver, but to save finances there is another option. restoration, which will extend its service life.

    What is the problem when using Ni─Cd batteries?

    During the operation of Ni-Cd, the voltage and discharge capacity gradually decrease. The following are the main factors driving these processes:

    • reduction of the working surface of positive and negative electrodes;
    • loss of active mass, as well as its redistribution over the electrodes;
    • current leakage due to the formation of metal Cd dendrites;
    • processes resulting in irreversible consumption of water and oxygen;
    • changes in the composition and volume of electrolyte.

    Similar processes occur when Ni-MH batteries are in use. The only difference is in the used electrode materials.

    All these changes in the oxide-nickel electrode are caused by constant overcharges, in which oxygen is evolved in the space of the positive electrode. The more batteries go through charge-discharge cycles, the more the crystals of the active mass of the positive electrode grow larger. Therefore, the working surface is reduced, and, therefore, the capacity of the battery.

    At the cadmium electrode, the degradation process is mainly determined by the migration of the active mass. As a result, there is some loss of it. In addition, the active mass clogs the pores in the surface layer of the negative electrode. Because of this, the access of the electrolyte to the deep layers is difficult. The migration of the active mass results in the growth of dendritic bridges through the separator to the positive electrode. This leads to numerous short microcircuits and increases self-discharge. On the cadmium electrode, during operation, crystals also grow and the volume of the active mass increases.

    In addition to the processes described above, oxidation processes of various additives that are present in the battery take place in Ni-Cd batteries. The cermet of the positive electrode gradually oxidizes with the consumption of water. And another unpleasant process that leads to the loss of performance of the Ni─Cd battery is the selection of electrolyte from the separator. This is due to a change in the porous structure of the electrodes and leads to an increase in the internal resistance of the nickel-cadmium battery.
    The electrolyte composition also changes during use. In particular, the volume of carbonates is growing. The electrical conductivity of the electrolyte decreases and all the parameters of the Ni. Cd battery fall during discharge. The picture becomes especially noticeable at low temperatures. What to do in such cases?

    How to extend the life of a screwdriver battery

    The performance of Ni-Cd batteries (like any other) deteriorates over time and after a while they can come to a state of “zero” discharge. At the same time, charging cannot affect this state in any way. They simply refuse to accept the charge. At the same time, the batteries still have enough resources for further operation. Therefore, over time, there were some ways to restore them. Whether to buy a new nickel-cadmium battery or restore an old one is up to you. We just tried to summarize the data that we managed to find on the Internet about the restoration and repair of Ni─Cd batteries.

    Design features of the battery

    Regardless of the brand of the power tool and its technical requirements, the design solution of the batteries is almost the same. If you disassemble the battery, you can make sure that it consists of identical batteries assembled in a serial electrical circuit.

    over, for any types of elements that have almost the same size and voltage rating, they can differ in capacity (indicated on the case). If the repair is carried out independently, then it is imperative to pay attention to the type of batteries used, because the recovery method for each type may differ.

    To connect the device to the network and charge it, the design provides power contacts that are connected to the circuit terminals. There are two more control contacts on the battery case, to which the resistance and thermistor are connected. From these parts, a system is assembled to protect equipment from overheating during charging and equalize the level of the required charge on each battery bank.

    Battery Malfunction Detection Methods

    The electric circuit of the battery is assembled according to a sequential scheme, therefore, first of all, you need to understand which element is faulty, since a malfunction of at least one bank entails an almost complete loss of the entire battery. The simultaneous failure of all elements is almost impossible. In this regard, it is necessary to determine the detail of the circuit, functioning with significant deviations from the technical parameters.

    Refurbishment of nickel-cadmium batteries for screwdrivers

    The ni cd battery device is manufactured using the same technology, so any battery can be donated of this type.

    Such devices are separate components. blocks, with a nominal voltage of 1.2 V and an energy capacity of 1200-1500 MA / h. They are found in Interskol screwdrivers. Each unit affects the power, that is, with its value of 12 V, the number of units is 10, 14.4 V. 12, etc. After changing the battery, the power may drop for the first time of operation, but then everything will be restored.

    Eliminating memory effect

    It is not very difficult to recognize such a defect. Once the battery is fully charged, it quickly discharges and stops working. After a while, it starts to function again.

    First, it is necessary to completely carry out the charging process, and preferably with a small current (if possible). Then, fully discharge at low load. Such actions will allow to make the subsidence not only of the top layer, but also of all the plates completely.

    For the load, you can use an ordinary electric bulb with a power of 60 W and a voltage of 220 V. The discharge is carried out up to 30% of the nominal capacity of about 5 V.

    This procedure must be repeated at least five times before using the battery. Of course, such “treatment” will not allow the battery to be fully restored, but will prolong its life by at least a year.