How to restore AA and AAA batteries. How to restore the performance of a Li-Ion battery: a few tips available

Any battery is not eternal and will fail sooner or later. However, I would like it to happen later than earlier. Especially if the battery has practically ceased to hold a charge, and there is no way to buy a new one yet. Fortunately, there are ways to revive even an almost completely "dead" battery for a while. All of these methods are not a panacea and only provide an opportunity to extend the life of the equipment in the short term. Sooner or later, you will still need a new battery.

Curbing

Causes of death of the phone battery

Modern smartphones use lithium-ion (li-ion) or lithium-polymer (li-pol) batteries. Their resource is approximately 500 cycles from full charge to full discharge. Depending on the intensity of use, this safety margin is sufficient for 2-3 years.

The active use of the phone at the same time strongly loads and overheats the battery. It will be even worse if you put it on charge while playing games or watching videos.

Since a smartphone nowadays is not only a means of communication, but also a device for work, Internet access, listening to music, entertainment, the battery can begin to weaken in a year and a half. The first cause of death of a battery is too much stress on it. To reduce it, you need to optimize the settings of the device, remove unnecessary applications and avoid running programs in the background.

Viruses. Android mobile devices are very popular, including among those who like to create and run malware. When accessing the Internet from a smartphone, you can easily pick up a virus, many of which degrade and slow down the device, force applications to run in the background, and quickly drain the battery.

Incorrect operation. Incorrect charging-discharging mode, constantly connected to the power grid, overheating and hypothermia, allowing discharging to zero, using non-native chargers - all this has a bad effect on the battery's performance.

Low quality. A battery purchased in an unknown location may be counterfeit, stored in inappropriate locations, and may not meet regulatory requirements. All this will lead to its rapid breakdown.

Modern batteries endure overheating, hypothermia and deep discharge worst of all.

In cold weather, the smartphone will irrevocably lose its battery capacity faster.

How to know if your phone won't start due to battery

Battery capacity is its ability to deliver voltage. It cannot be constant and decreases over time. But how to understand that it is the damaged battery that is to blame for the problems with the phone?

The first thing to know is how long this battery has been in service. Li-ion and Li-pol batteries usually retain their functionality for three years, then the aging process is inevitable. So if the device is already old, almost certainly the problem is in it and it's time to buy a new one.

You should also remove the battery from the phone and inspect it visually. A swollen, deformed, or even cracked battery should be replaced immediately. Otherwise, it can ruin your entire mobile device.

If outwardly the battery is still quite good, and it's not that old, then it's worth checking it out. You will need a multimeter - a device designed to measure voltage.

The measurement process looks like this:

1. remove the battery from the phone;
2. set the standard voltage for this device in the multimeter settings, most likely it will be 20 volts;
3. apply the multimeter contact first to the positive pole of the battery, then to the negative one.

The results obtained will most likely be in the range from 0 to 4.2 volts and can be interpreted as follows:

1. 3.7 to 4.2 volts. The battery is fully charged and functional. In this case, the reasons for the fast discharge need to be looked for in another - for example, in the phone settings.
2. 2.1 to 3.5 volts. The battery is not fully charged, the lower the value, the weaker the charge. Despite this, the phone should turn on and charge without problems, although the battery is clearly not the first freshness.
3. 0.0 to 2.0 volts. The battery is in a deep discharge and will not charge without a jolt and swing.

In the latter case, the battery will have to be reanimated, without which it will not work.

How to restore a smartphone battery

You can restore the battery, more precisely, its ability to hold a charge and charge normally, in different ways. The most common of them involve the use of supplying current to the contacts, from another power source, through: another working battery, a frog or a Krone battery.

It is important to understand that all these measures are temporary and do not in any way eliminate the need to change the battery. They just allow you to extend his life for a while.

Important! There are tips such as piercing or cutting a swollen battery, letting out the gases that have accumulated in it, then sticking it up and reusing it. This is quite dangerous, since an unpleasant gas will start to be released upon opening, the battery will become very hot and may even catch fire.

How to push a battery in a deep discharge

More often, there are recommendations to "push" the old battery by giving it a short strong discharge. This is really capable of reviving the "dead" in many situations. It will help if the battery is already old or has been in the off state for a long time, and therefore refuses to start, since it went into a deep discharge.

Here are the ways to do this:

1. By applying current to the contacts... This is a simple method that will require a native or universal charger, a pair of wires, and a resistor. It is necessary to connect the minus of the battery with the minus of the charger, and the plus with the plus, only insert a resistor into the positive circuit. Then apply power and bring the voltage on the battery to 3 V. During its operation, you need to check the voltage - if the indicator is exceeded or if the battery is too hot, the procedure should be stopped. It usually takes 10-15 minutes for the battery to recover.
2. From another phone battery. You can also try to "start" the phone battery from any other usable battery. To do this, you need to connect using wires and electrical tape plus with a plus, and a minus with a minus and leave it to lie down. When the subject becomes noticeably warm, you need to disconnect it, check its performance in the phone and charge it in the usual way.
3. With the help of a Krone battery. The Krona battery is a special type of battery with two contacts with a voltage of 9 V. Charging with its help is carried out in the same way: the positive contact must be connected with wires to the positive one, and the negative contact to the negative one.

Important! In no case should the battery contacts be closed with each other. This can permanently damage the battery and cannot be recovered.

Universal charging frog

How to revive the battery by freezing

Craftsmen also offer a simple and original way to revive the battery at home. In any case, if it doesn't work, then it won't do much harm to her either. After all, there is a phone in the cold?

For this method, you need to put the battery in a plastic bag and put it in the freezer of the refrigerator for several hours. Then remove, wipe off the condensation, insert into the device and charge for ~ 1 minute, then remove the battery again and let it warm up to room temperature. Insert into the phone and continue charging.

From a purely physical and chemical point of view, cold is detrimental to the battery, so this method can be used with completely faulty batteries, which will not get worse. As a result of the cold, the controller should temporarily stop understanding what is happening and allow the battery to recharge.

How to restore capacity in the battery

You can restore the battery's ability to hold and replenish the charge, but the capacity decreases over time, and this process is irreversible. Otherwise, the batteries would work forever.

Due to the loss of capacity, modern lithium batteries last an average of three years. Therefore, all the advice on how to restore capacity is actually about how to restore the phone's ability to hold a charge.

Calibrating the smartphone battery

In order to avoid problems with the battery, as well as if its capabilities deteriorate, it is recommended to periodically calibrate. Usually, modern batteries are recommended not to be fully charged and not to discharge, respectively, too. And to calibrate the charge (that is, "remind" the battery how to behave correctly), a full discharge is used, followed by a 100% charge.

To do this, you need to completely exhaust the battery resource so that the phone turns off. And then put it on charge. By the time it takes to fully charge, to be sure it is worth throwing a couple of hours. Then turn it on.

Also, to calibrate the battery, you can use any mobile application that can be downloaded from Google Play or the App Store, depending on your Android or iPhone. To do this, it is enough to write in the search bar of the application search: "Battery calibration". This method ensures that you download the most up-to-date and freshest application, since the one recommended by us may become outdated and not support more recent phone models and OS.

When not to rebuild your battery

All these temporary measures are capable of reanimating an old battery or a battery that has suddenly lost its ability to hold a charge for a certain period. If the battery is not good for anything at all and even, let alone hold a charge, the only way out is to buy a new one.

Also, if the battery is deformed and swollen, resuscitation will not save the day. A swollen battery can burst, in which case the electrolyte will ruin the inside of the phone. To the extent that it will be impossible to fix it.

In addition, battery recovery must be taken seriously and responsibly. Failure to comply with the rules and safety measures can damage even completely working equipment, and possibly harm a person.

Have you ever had to restore your phone battery? Have you used one of the above methods or some other? Tell us about your experience in the comments, it will help make the material more complete and interesting.

Content

During the use of a mobile device, the battery will definitely consume its resource and "age". This manifests itself in a fast decrease in charge and slow charging. Sometimes the device simply does not turn on after turning off and does not respond to pressing buttons. This is a typical and familiar phenomenon for lithium batteries, which are currently used in all smartphones. You can purchase a new source of charge, but if you want to save money, there are options for self-reanimating the battery.

How the phone battery works

Most gadgets have a battery function. There are several types of phone batteries:

• Ni-Cd - nickel-cadmium;
• Ni-Mh - nickel metal hydride;
• Li-Ion - lithium-ion.

NiCd batteries have the largest charge volume, they are easy to manufacture, store and operate. Often used to power medical equipment, radios, power tools, and professional video cameras. NiMh batteries generate more heat during charging, requiring a sophisticated algorithm to determine when fully charged. For this reason, most of these batteries have an internal temperature sensor. NiMh charges for a long time (exceeds 2 times the duration of NiCd charge replenishment), but their capacity is much larger.

Li-Ion batteries, when recalculated for one kilogram of weight, are 2 times higher than the value of NiCd. For this reason, lithium-ion batteries are now used in all phones, laptops, where, in addition to battery life, the weight of the product is also important. The design of the battery itself is very simple: two graphite sheets of lithium and cobalt oxide, which are lubricated with electrolyte and rolled into a roll.

Why the battery is discharging

Smartphone owners in a year or a year and a half begin to notice a decrease in the efficiency of the device, the charge quickly goes away. This can happen for several reasons, some of them can be solved programmatically (disabling unnecessary functions, wi-fi, cleaning from viruses), while others can only be technically fixed by restoring the battery capacity. Popular reasons why the battery is discharging are the following factors.

The overwhelming majority of smartphones run on the Android operating system, which is prone to failures due to its complexity and open source, the optimization of the OS is at a low level. Several dozen programs run automatically in the background, even in standby mode (with the screen off), they continue to "gobble up" the charge and lead to a rapid decrease in battery capacity. Many of these background programs are unnecessary for the average user and should be disabled.

• Viruses

The Android system is free, the poet gained such popularity, hackers could not ignore this and began to create malicious programs for it. The activity of such viruses leads to a rapid decrease in the battery power of the phone. In addition, the performance of smartphones drops even with strong processors. The following signs (except for antiviruses) will help to determine the presence of "pests": the appearance of advertisements in the wrong places, an increase in the temperature of the gadget case, the system slows down.

• Defective battery

A breakdown of a battery will result in a rapid loss of energy. This occurs more often with prolonged use, usually after two years. This is an inevitable process of wasting equipment resource. Sometimes a decrease in the nominal capacity of the battery is due to contamination of the anode and cathode. This leads to a slowdown in physical and chemical processes that affect the ability of the battery to release the accumulated charge. Using some methods, it is possible to achieve the original battery value.

Battery capacity and shelf life

Recovery processes with constant use of the device will not be able to return one hundred percent of the same amount of voltage. Over time, the power of the battery decreases, it wears out and becomes unusable. Li-Ion batteries have a shelf life of 2 years from the date of manufacture. During this period of time, from 20% to 35% of their power is lost. Restoring an old battery is not an easy task, so pay attention to the date of manufacture of your phone.

How to check your phone battery

For the test, you need a device called a voltmeter that helps measure the voltage of the equipment. It is recommended to first visually inspect the battery. If the battery has been in operation for a long time, then its structure could undergo deformation, for example, swell. If liquid gets on the contacts, it will oxidize. These factors affect the battery capacity and lower the specific value. To check the battery you need:

• remove the battery from the device;
• apply the positive contact of the voltmeter to the positive pole;
• do the same with negative;
• in the settings, the nominal value of the measured voltage is established.

The voltage that you received when measuring and will display the state of charge of the battery. To assess the indicator, you can use the following values:

• less than 1 V - you need to charge the battery;
• about 2 V - the battery is charged, the capacity is average;
• 3.6-3.7V - High capacity fully charged battery.

Phone battery recovery

If you wish, you can try to restore the "life" of the battery using some methods. Restoring a smartphone battery is a temporary measure, the device's resource is not infinite, so at some point the battery will still have to be replaced. Below are methods for increasing battery capacity that you can do yourself at home. For some, you will need additional tools, the ability to work with your hands. If you are new to this area, then it is better not to restore, but to buy a new battery.

With a dedicated charger

You can restore a Li-Ion battery using a multimeter and Aimax B6. The latter device is easy to buy, it works well if you need to reanimate the battery at home. First, we check the battery itself with a multimeter. Connect it by setting it to the voltage measurement mode. In the presence of a deep discharge, the multimeter will indicate this at the minimum value of U in millivolts.

Sometimes the controller does not measure the real amount of voltage. There are two outputs - plus and minus, which go directly from the battery to the controller. The voltage at the terminals, as a rule, is 2.6 V, but for lithium batteries this is not enough, in order to obtain a real voltage, you need to charge the battery to 3.2 V. Then the multimeter will begin to reflect the real voltage. It is necessary to ground the negative wire, and connect the red wire to the power supply; there is no need to set a large current.

Aimax is convenient in that it supports several modes that differ for different types of phone batteries. Activate the appropriate mode (lithium polymer or lithium-ion), set the voltage to 3.7 V, and the charge to 1 A. The voltage will begin to rise, indicating a successful recovery of capacity. The indicator should reach 3.2 Volts and the battery will "swing". Then you can insert it back into your tablet, phone, or fully recharge it using your own device.

Recovering phone battery capacity from another battery

You will need any other 9 Volt battery, electrical tape, thin simple wire. This DIY phone battery recovery will be interesting to all electronics lovers. You can restore capacity using the following algorithm:

1. Run the wires to the contacts of the battery to be repaired. Each pole needs its own.
2. You cannot close plus and minus with the same wire, this will lead to a short circuit and you will no longer be able to restore the battery.
3. Secure the contacts with electrical tape, making a note with a + and - marker.
4. Connect the positive terminal to the "+" on the 9-volt battery, and the negative one in the same way.
5. On this side, also secure the contacts with electrical tape.
6. After a while, the battery should start heating up.
7. When the battery becomes noticeably warm, you need to disconnect it from the "donor" and put it into the phone to check its operation.
8. After turning on, immediately check the charge level, set the mobile to charge in standard mode.

Using a resistor and a "native" charger

This method is simple, you do not need special devices or devices, you only need your own charger. Phone battery repair will require the following:

• resistor device with a minimum rating of 330 Ohm, maximum - 1 kOhm;
• power supply 5-12 V (charger from the phone is suitable).

To restore the battery, you need to perform the following simple wiring diagram: minus from the adapter to minus of the battery, plus is output through a resistor to plus. Then you need to apply power and the voltage on the battery will begin to rise. You should bring it up to 3 V, this will take 10 to 15 minutes. Then you can use the battery as usual.

Recovering your phone battery with a fan

You will definitely need a power supply with an output voltage of at least 12 V. Connect the corresponding one from the device to the negative connector of the fan, also connect the negative one and fix the wires manually on the battery. Connect the power supply unit to the outlet, the fan should start spinning, which indicates the supply of current. You should not keep charging for a long time, 30 seconds are enough for the required U indicator. This will help "revive" the battery and charge it without any problems from a regular outlet.

Cold resuscitation of the battery

This option, how to restore a phone battery, rarely works, but you can try, because there is no risk of ruining it. Place the battery in a plastic bag (foil or paper does not fit) to prevent water from entering the phone. To reanimate the phone battery, you need to put it in the refrigerator (freezer) for 12 hours. After cooling, let it warm up in the room, do not forget to wipe it dry. By freezing, it is possible to restore a little capacity so that it can be charged through a regular outlet.

How to recover a lithium battery after a deep discharge

If the device is not used for a long time, deep discharge may occur. The voltage drops to unacceptable values, the device is shut off tightly by the controller and it is impossible to charge it from the outlet. In this case, it is possible to restore the battery only by unsoldering the protection system. Then it is powered up using a special device, for example, Turnigy Accucell 6. The device itself will monitor the battery recovery process.

Using the "Type" button, you can select the charging program. Press the Start button, then for Li-ion - 3.5 V, for Li-pol - 3.7 V. The current should be set at 10% of the nominal battery capacity. To do this, you need to click on the "+" and "-" buttons. When the value reaches 4.2V, the mode will change to "voltage stabilization". The device will emit an audio signal after charging is complete, and the screen will display the message "Full"

When the battery is swollen

When the battery degrades, physical deformation can begin. The swelling makes the device unusable, but you can try to repair it. You need to find a kind of a cap on the battery, which is located under the sensor board. Next, you need a needle or nail. Pierce this cap, this must be done carefully, separating the upper part with the sensor board with contacts from the battery case. Wait for all the accumulated gas to come out of the case, put the metal plate in place. For this you need:

• put the battery on a flat surface;
• put a plate on top;
• it is easy to squeeze its body;
• when it lines up, solder the sensor board back;
• cover the puncture site with waterproof glue.

Fully charge and discharge your phone battery

This is the simplest, but ineffective way to restore the battery capacity. You need to "drive" the battery several times until it is completely discharged, and then completely restore it. For this:

• download a resource-intensive utility (AnTuTu) or a game and completely land the phone (before shutting down);
• connect the power and wait for 100% charging;
• repeat the previous steps 3-4 times.

Video

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Today's video is devoted to interesting ways how you can extend the life of a dead battery. What if they sat down, and you need to restore them to last some more time. The proposed method is not new, but it will differ from what we are used to seeing and hearing. The author of the channel told DIY and gadget +.

So, our batteries are in a flashlight with a fan. Checking how they work. It can be seen that the flashlight is on, the fan rotates with difficulty. Naturally, they sat down. We take out the dead batteries and check this device with a tester. Now we will leave them in a previously prepared container, in which there will be a stand so that the batteries are in an upright position. The stand is made of ordinary plastic sleeves.

We put the container with its nose down, up and fill it with water 3-5 mm below the top level of the battery. This is necessary so that there is no plus-minus short circuit through the water. Fill with water, ordinary water, literally two minutes after it has been heated to a boil. We leave in this position for 10-15 minutes, until the water cools down to room temperature.
The water has cooled down. We take it out and check it with a tester. The meter shows that the batteries are almost replenished to the initial charge.

It can be seen that the flashlight shines brighter than before the extended service, the fan has also restored its work.
This method was tested only on alkaline batteries.

Salt battery recovery

In this video I will share my method of recovering saline finger-type batteries. To do this, we need the batteries themselves, electrical tape, a marker, scissors, a tester, a syringe and a working solution. First, let's check for performance. As you can see, they are generally dead. Let's see what the device shows. We take out and proceed to restore their work.

Important information. Only saline batteries are suitable for this experiment. They should be intact on the outside, there should be no smudges or discharge. Batteries of other types, i.e. alkaline, alkaline or rechargeable batteries, are not suitable for this method. It is hazardous to health.
So, we take a salt battery, find the connecting seam and at an angle of 90 degrees to the seam at a distance of 1 centimeter from the edge, make 4 marks. In these places we make holes with a drill for 4. We drill very carefully so as not to damage the shell, we only drill the outer shell, no more.

After the holes are made for the batteries, we put them in one container with a plus on top. We fill it with working solution so that the level overlaps the upper drilling. We use 6 percent food vinegar as a solution. Fill in carefully. We leave the batteries in this state for 10-15 minutes. The temperature of the solution should be at room temperature. We wait 15 minutes and proceed further. After the batteries are saturated with the solution, carefully lay them out and put them seam down to dry so that the excess is absorbed onto the napkin. We leave in this state for 10 minutes. Next, we cover the hole with ordinary electrical tape.

The final stage of our charge recovery experiment has come. We check with the device. We insert them into the flashlight and try to turn them on. The light is on. The experience was a success. Let me remind you that this method of prolonging the work is suitable only for salt batteries.

Modern storage batteries remain one of the biggest challenges for both manufacturers and consumers. And it's not so much about the potential risk of fire, but about the gradual depletion of the power source itself. Therefore, one should not be surprised that with daily charging, the batteries can withstand a year or two of active use, after which their capacity drops dramatically and it becomes problematic to use your favorite gadget. You cannot completely reanimate a deceased battery, but you can extend the period of active use while you are looking for a replacement. We will talk about this today.

The recommendations below are designed for a technically trained user, therefore, if you do not know which side to approach the soldering iron, it is better either to contact the services of a service center, or immediately go to the store for a new battery.

Method number 1

He will be able to help in cases when, due to prolonged work, gases begin to accumulate inside, as a result of which the battery swells and does not hold a charge well.

Required tools and materials: a soldering iron, a little epoxy, a thin needle, a flat, heavy leveling object.

Disconnect the battery case from the upper block with the sensor as carefully as possible.

We separate the electronic sensor.

There should be a cap under it, inside which the control electronics are hidden. We carefully pierce it, for which a thin needle is well suited. Remember that with a damaged filling it will no longer be possible to reanimate the battery.

The most crucial moment. We put the battery on the table and press it down with a press. Keep in mind: excessive force can render the battery unusable, and a lack of it, on the contrary, will not lead to the desired result. It is also categorically not recommended to use a vice or similar devices for repairs.

When you're done, put a drop of epoxy on the hole and solder the sensor.

Method number 2

He is not able to reanimate a battery with a significantly reduced resource, but it can slightly extend its life. You shouldn't count on much, but a reanimated battery will be able to provide power to a modern smartphone while you are looking for a replacement.

Necessary tools and materials: any power supply unit (5-12 V, current not less than 0.1 A), voltmeter or tester for voltage control, resistor (power not less than 500 mW, resistance from 330 to 1000 Ohm).

If you do not have a spare power supply, almost any complete one from active network equipment (switches, routers, modems) will do. First, you should make sure that the parameters of the current produced by them correspond to the required ones.

We release the contacts of the power supply and connect them to the dead battery: "minus" of the power supply with "minus" of the battery, and add a resistor to the "positive" line. Be sure to check the correct polarity with a multimeter.

When everything is done, plug the power supply into the mains. The procedure time is no more than 2-3 minutes. If possible, control the process with a tester: the maximum allowable voltage is no more than 3.3 V.

A few important notes

Do not leave a problem battery unattended during repairs. Cases of spontaneous combustion are not a theory, but a harsh reality.

Periodically check the temperature of the "client" with a remote thermocouple, electronic thermometer, or simply by hand. If the surface feels hot and not just warm to you, stop repairing immediately.

Excessive charging currents should not be used. The most you can afford is 50mAh. This parameter is calculated as follows: the power supply voltage of the power supply is divided by the capacity of the resistor. For example, if the first parameter is 12 V, and the second is 500 Ohm, then the charging current will be 24 mAh.

A standard 80mm computer fan can be used instead of a resistor.

It is also recommended to monitor the initial charging of a remanufactured battery to avoid spontaneous combustion.

Method number 3

The technique is controversial and dubious, but, according to reviews on specialized forums, it helps some users, because the responsibility for possible negative consequences lies with you.

Required tools and materials: working refrigerator.

Remove the battery, which does not show signs of life, from the smartphone and put a plastic bag, which should be put in the freezer for 20-30 minutes.

Remove it from the device, let it warm up to room temperature, then charge it in the usual way.

Method number 4

A harmless but ineffective resuscitation technique. But if it seems to you that the battery in your smartphone is completely out of order, then why not give it a try?

Required tools and materials: Smartphone with standard charger.

Bring the battery to full discharge (when the phone no longer turns on). Any resource-intensive game or AnTuTu utility can help with this.

Fully charge the battery to the 100% mark.

Repeat steps 1 and 2 several times.

Method number 5

Almost all professional electricians will consider the following procedure sacrilege, but it has helped many users of old batteries.

Required tools and materials: razor blade, thin screwdriver, moment glue.

We remove the battery from the phone.

Peel off the sticker with technical characteristics.

Cut off the top plastic cover as much as possible, behind which the control electronics is hidden.

We find the main contacts.

We close them for a moment with any metal object.

We glue the top cover and let it dry.

Once again, we remind you that none of the above methods of resuscitation does not guarantee a 100% result, and all responsibility rests entirely on your shoulders. But if the battery has turned off completely, and the purchase of a new one is postponed for several days, it's worth a try. But if you rarely pick up a soldering iron and consider yourself a humanitarian, it is better to seek help from a friend who understands the topic.

Video instruction