Laptop battery diagram. Laptop battery: controller reset, firmware and reset

Long and permanent job computer system often leads to battery failure, which can withstand network overload for its normal state. How to restore a laptop battery with your own hands and what is required for this? Don't rush to new purchase First you need to deal with the problem yourself.

Lithium batteries from a laptop this moment are installed in all modern devices, so instructions will be provided specifically for their repair. They are able to withstand 300-500 charges and discharges, depending on the frequency of use, the battery life is 2-6 years. At the end of the set cycle, the work of the components is reduced by 1–2 hours.

Laptop battery recovery is necessary in these cases:

• The battery particles have stopped working. Common problem when replacement is required constituent parts that are connected to the running center. If replaced, the battery will increase the amount of charge capacity, work more stably.
• After a long discharge, the central part of the block, due to the current imbalance, disconnects the components, considering them broken. You will need a special multimeter or calibrator that can bring the action back to normal.
• Controller failure. It is a board in which it is quite difficult to understand what is broken. You can carry out diagnostics at home, and you will have to purchase or replace new board, or new system nutrition completely.

There are three main cases, the most frequent of which are the first and second.

It is also worth noting that before recovery, you can calibrate the battery using special utilities. The essence of the process is that at first your battery will be completely discharged, and after that it will begin to fully charge. This method can restore the autonomy of the device, but it also takes 3-8 hours.

Tools to revive a laptop battery

You will need:

• multimeter;
• equipment for opening the cover (screwdriver);
• soldering iron and tools included in its composition (solder, flux);
• charger or program with which you can calibrate the normal operation of the battery;
• materials for assembling the body and gluing (adhesive tape, scissors);
• several car bulbs with a voltage of 20–25 watts;
• new lithium type components.

It is worth noting that the blocks (components or elements of the battery) must be fully compatible with your old version, or be a replaceable analogue.

How to push a laptop battery?

If you are wondering how to restore a laptop battery, you can use the following methods:

1. Freeze the battery. First, you need to place the removed battery in a plastic bag. The next step is to put the bag in the refrigerator, but no more than 12 hours. After removing from the package, let the battery warm up, and then install it in the laptop. It is worth noting that this method relevant only for old NiCd batteries.
2. If the battery is lithium-ion, then this method of restoring capacity is suitable - cool the laptop. For laptops with poor heat dissipation, this option will not work, but will only aggravate the condition of the entire computer device.
3. And another option to restore the battery on a laptop is to remove it while charging. In this way, you can evaluate the performance of the laptop without an additional source and safely remove the battery. And it doesn't matter if the battery is installed in a laptop, it will still continue to use the charge, producing chemical reactions.

Laptop battery recovery: opening the battery

How to restore battery capacity? Take advantage next instruction general type:

1. First you need to open the power supply and remove it from the device. Most often, manufacturers fix the battery with sizing, but some users are lucky - they have special latches.
2. After you have opened the battery, check the external condition of the battery cells for scratches, color defects, smell.
3. The next step is to check the voltage of the device with a multimeter. If there is no voltage in the device, then it is necessary to change the entire battery, since the controller is broken.

To restore a nickel-metal hydride battery, follow these steps:

1. Count how many power components are in the battery.
2. To compare normal battery performance, multiply them by 1.2.
3. Use a multimeter to check the voltage and see if it is as advertised.
4. If the voltage is less, then check each component individually.
5. Attach a small light bulb to each part of the battery (using solder) and wait until it is completely discharged.
6. Raise the voltage at the bulbs with a charge.
7. The final stages are a 100% charge and gluing with a lid.

You can restore a lithium-ion battery in this way:

1. Repeat step 1 in the previous instruction, increasing the multiplier to 3.7.
2. Use solder to install car light bulbs.
3. Check voltage. If it does not correspond to normal values, then check each component individually by unsoldering the controller.
4. Discharge all cells, calibrate the voltage and glue them together. After gluing, you need to charge the battery.

It is in these ways that you can restore the laptop battery with your own hands.

Extending battery life with a special program

Now we restore the battery. At the moment, you know how to restore the battery on a laptop, but what if you need to change the main parts and how is it done?

After replacing the battery, download any recovery program that could equalize the voltage. This will require a complete discharge (which the program itself must do) and a new charge.

At the same time, remember that during charging you do not need to disconnect the cord from the power source!

After replacing the main parts, you will have to do a simple assembly. Install special programs that could control the incoming voltage. To replace the battery, purchase new or component parts (blocks) that will have to be soldered.

Video about laptop battery recovery

Suddenly, the laptop battery stops holding a charge, and then it stops working. Many people are familiar with this situation. It won't charge and as soon as the charger is pulled out the laptop will shut down. The battery has died. The author of this article knows how to revive it. He will tell you how to do it.

Please note that we only refurbish a dead battery. If your battery is completely dead, read on!

Oh, and by the way... The author is not responsible for any problems you may encounter, such as damaged batteries, fires, explosions, and any other damage. You all do everything at your own peril and risk.

Step One: Theory

A laptop battery usually consists of three pairs of batteries. Each pair consists of two battery cells soldered in parallel. When battery cells are connected in parallel, the voltage remains the same, but the capacity of the entire block increases (you can “pull more amperes out of them, more electrons”).

Normally, each battery cell (and therefore a pair) has a voltage of 3.7V. When they are connected in series (whether individual cells or the aforementioned pairs), the voltage increases, thus giving 3.7 x 3 = 11.1V.

Each pair must have 3.7V.

Why is the battery not charging? This is because one of the pairs does not have the same voltage as the others, preventing the computer from charging them all at the same time.

Step Two: Action Plan

First you need to open the laptop battery pack and examine each of the three "pairs". They must have the same voltage. If not, then the low voltage pair needs to be recharged back to 3.7V.

Step Three: Tools

multimeter
Charger, about 4-5 V (from an old phone)

You may also need:

A small knife to remove paper from the battery.
Screwdriver to open the battery

Step four. Removing the battery pack

Disconnect the charger, turn the laptop over and locate the battery on the back of the laptop.

May have two buttons. One of them is a lock, move it away from the battery. Now press another button and pull out the battery.

Step Five: Removing the Sticker

Now turn the battery pack over and find the side with the text. What you are looking at is a thick sheet of special paper. You can safely remove it with a small knife or any sharp object. You just need to pry off the sticker with a cutter and continue tearing it off with your fingers.

Step Six: Removing the Cover

What you see is actually a lid that opens.

You may need a screwdriver to insert it into the “slot”, turn it and open the battery pack in this way. Once done, simply remove the cover as shown in the photo.

Step Seven: Removing the Battery

Gently lift the batteries from one end and then the other to make sure they don't stick to the compartment. Now turn it over and let the batteries fall into your hand. Make sure that printed circuit board also comes with batteries.

Step Eight: Separating Paired Blocks

Separate three pairs of batteries separately so that you can measure their ratings. This will require a multimeter.

As you can see, they are soldered in pairs, so it does not matter where to take the values ​​from. It is necessary to measure the voltage of the pair.

Step Nine: Pair Voltage Measurement

The voltage should be 3.7 V. With this in mind, we carry out the measurement.

As you can see, the middle pair is bad here.

Step Ten: Connecting the Charger

Now we begin the process of correcting this situation.

Take the charger. Determine which wire is positive and which is negative. Often there is a white or gray line on one of the wires. Take a measurement with a multimeter. If the displayed voltage is a positive number, then the red tip touches the positive and the black tip touches the negative.
If the displayed voltage is negative, then the opposite is true.

In the photo, the measurement is 11.9 V.

Step Eleven: Recharging the Batteries

Attach the positive wire to the positive end of the battery and the negative wire to the negative. Recharge for a few minutes. Then wait 10-20 seconds before measuring. This is necessary in order for the charge to normalize, since the voltage in the cells drops when they stop charging.

When it seems that you have finally reached the desired voltage, you should wait half a minute and try again to make sure that the elements are no longer needed.

Step Twelve: Putting the Items Back

Reconnect the cells and place them in the battery compartment as shown in the figure. Make sure the PCB is fully inserted.

Then put the cover back in place. Then stick the sticker. If it doesn't stick, which it most likely will, just use clear tape or glue.

Step Thirteen: Returning the battery pack to the laptop

Insert the battery pack back into the laptop and move the lock to the closed position towards the battery.

Step Fourteen: Battery Performance

In fact, repairing a laptop battery is not a difficult process if you have experience with power tools, as well as knowledge of the battery process and tools to complete the task. Following some simple advice, laptop users can quickly do a DIY laptop battery repair while saving $100 on a new one.

Laptop Battery Repair

Laptop batteries consist of rechargeable batteries and a circuit board. A typical 6-cell laptop battery has several hundred charge cycles, when they are depleted, the cells can no longer hold a charge. And the easiest way is to replace them.

Battery cells can be purchased for a fraction of the cost of a new battery. However, you must be experienced with electronics to avoid the danger of electric shock, as this type of battery can explode. To ensure the safety of the repair, it is imperative to take all necessary precautions.

Safe extraction

Before disassembling, make sure that the laptop battery is completely discharged. Once the charge is completely depleted, you should double check the laptop before removing the battery. It is important!

Battery Repair Procedure Asus laptop do it yourself:

1. Open the battery case. To do this, carefully unpack it using a flathead screwdriver and a utility knife. Once the battery case has been opened, the type of batteries needed can be analyzed and the wiring diagram for installing them can be determined. Before disassembly, it is better to take a picture or draw a connection diagram of the elements so as not to forget before restoring. It is also important to take all measures when opening to prevent deformation or breakage of the plastic case of the battery.
2. Cell replacement. Use a voltmeter to make sure old cells are fully discharged before removing them. This will prevent possible electric shock.
3. Use the model number on the battery to find suitable replacement cells.
4. Solder the new cells to the wires, making sure they connect to the correct wires.
5. Protective goggles are used when replacing lithium-ion cells. They are handled with care as they are capable of exploding.
6. Once the battery case is closed and placed back into the laptop, it must be fully charged.

DIY Hp laptop battery repair

Laptop batteries consist of lithium cells, which are called 18650 cells. They do not last forever and have a lifespan of about 2 years. If the laptop is fully charged, but charging does not last even half an hour, this means that the cells inside the battery are dead.

Having in stock old battery for a laptop, some wires and tools, such as a wire cutter and electrical tape, you can start repairing a laptop battery yourself:

• Open the old battery and take out 6 cells that are in a 2 x 2 parallel connection.
• Check the voltage with a multimeter of your own battery. As a rule, a voltage of less than 3.6 volts for batteries indicates that they need to be replaced urgently.
• Using one wire, connect all cells in series. The circuit should provide about 12 volts.
• Open original block, delete faulty cells and, keeping the scheme, replace them with working cells.
• Assemble the circuit on the native battery. The battery pack will also have 4 wires - 1 negative and 3 positive (one attached to the end and two between the battery pack).
• Check the circuit with a multimeter before closing the unit.
• Close the battery case, insert into PC and start charging.

Additional Troubleshooting

This equipment is designed to last about 2 years under normal circumstances, but its lifespan is often much shorter. Before attempting to repair a laptop yourself, consider how dangerous it is.

Lithium-ion batteries in particular are highly flammable and may cause an explosion, and not all battery types can be repaired.

These tips apply mainly to do-it-yourself laptop battery repair for lithium-ion type. Repair consists of the following steps:

• Computer cooling.
• Recalibrate the battery.
• Wake up a dormant lithium-ion unit.

Computer temperature cooling

If the laptop battery is draining quickly, you can try to cool down the computer further.

Many laptop batteries today feature lithium-ion cells that need to stay cool so the battery lasts longer. If this part shows clear signs of slowing down because it has become too hot, you should immediately turn off the computer and cool it down.

When hot work is a common occurrence for a PC, then you need to purchase a cooling pad for your computer. It costs 5 times less than new battery, and will not allow the laptop to quickly lose the battery.

Recalibrate the battery

If the operating system is confused about battery capacity, this means that recalibration may be required. The main reasons for this problem are:

• the battery is not completely discharged;
• the user keeps the laptop on all the time.

Regardless of these reasons, there are two ways to solve the problem during DIY laptop battery repair.

The first of these is the search online programs battery calibration tool developed and released by the manufacturer specifically for the desired laptop model. If a the right software not found online, you will have to use the second method and recalibrate the battery manually:

1. Charge the battery up to the maximum value it can reach.
2. Allow it to cool for 2 hours and fully discharge.
3. After complete shutdown laptop, do not turn it on for the next 3-5 hours.
4. Turn on the laptop and fully charge the battery - this time it will be able to reach 100%.

Wake up sleeping Li-ion battery

Li-ion batteries contain a protective circuit that protects the battery from accidents when over-discharged. The transition to sleep mode can occur when the lithium-ion package is stored in a discharged state for any period of time, when self-discharge gradually depletes the remaining charge. Depending on the manufacturer, the Li-ion protection circuit is cut between 2.2 and 2.9 V, and you need to know how to repair the laptop battery in this case.

Some chargers have a wake-up or "boost" feature to turn on again and recharge batteries that have "fallen asleep". Without this provision, the charger renders them unusable.

Boost applies a small charging current to activate the protection circuit. If the correct cell voltage can be reached, the charger starts normal charging. If the storage of lithium-ion batteries presents a clear uncertainty, then manufacturers recommend keeping them at a state of charge of 40-50%. But at the same time, they warn about the possible loss of the device due to excessive discharge. There is a wide range of action between these criteria, and if the user is in doubt, it is better to store the battery with a higher charge and in a cool place.

Very often, poor battery performance is not due to design flaws, but is caused by various software failures in the operation of the computer, in particular due to damaged drivers.

This error is easy to fix:

1. Remove the battery from the computer and start the PC through the power adapter.
2. Go to the "Batteries" tab in the device manager, after which you can see the "Battery ACPI-compatible controller" drivers on the laptop and you can start restoring the laptop battery yourself.
3. Uninstall the main driver, select it first, and then click on advanced options, click on "Uninstall" and "Confirm device removal" to completely uninstall this driver from the laptop.
4. Turn off the laptop and put the battery back in its place, and then restart the laptop. After that, most likely, the problem will be solved.
5. If the problem is still not fixed by the above solution, then it is possible that the registry operating system corrupted by some virus or malware.
6. Then it remains the only way fix it using a best-in-class registry cleaner or reset your BIOS.

Do-it-yourself laptop battery controller repair

To resolve the issue, you can try resetting the System Management Controller (SMC). Restart Mac in Recovery Mode:

• Go to the menu in the top left corner of your Mac screen and click Restart while holding Command and R together to open a window.
• Erase HDD Mac and click Continue.
• Choose your boot disk and click "Erase" using the buttons at the top of the "Disk Utilities" window.
• Select Mac OS Extended (Journal) from the menu and click "Erase", then boot the PC as usual.

• Turn off your Mac.
• Disconnect the power cord from the PC.
• Hold power for 10 seconds and release the button.
• Boot your PC as usual.

Note! Starting the download may take a little longer than usual after reset SMC.

Based on battery repair experience, users share their tips:

5 Notebook Battery Secrets

Knowing these secrets of quality laptop batteries can save consumers the hassle and money of repairing their own laptop batteries.

Choosing the right battery manufacturer is important. There are many laptop manufacturers that advertise extremely low prices for laptop replacement laptops over the internet, Amazon and Ebay. Many of these low-price companies are based overseas and are not subject to safety and manufacturing standards to ensure lower costs. When a consumer is evaluating potential replacement suppliers, they should be able to contact the manufacturer's representative, not the seller. This information is carefully hidden from consumers through various tricks, such as giving them only an email address.

It is not worth paying extra for branding and labeling in laptops before repairing a laptop battery yourself. Even top brand laptop batteries are made with third party components. In truth, most brand name laptop parts are made using various components from other companies.

Laptop batteries determine the performance of a battery. They consist of three main components:

1. Rechargeable batteries.
2. Battery case.

The quality and safety characteristics of each of these parts will determine the overall quality, life and performance of the replacement battery. Laptop batteries are the most expensive component in batteries. Cells are classified into classes and fall into categories A, B, or C. A class A battery from a well-known manufacturer (such as Samsung or LG) tends to last longer and have more high performance than a class B battery.

Expected battery life. High-quality components lead to longer loads. Life expectancy for any laptop battery may vary depending on usage. In general, a laptop battery will provide between 400 and 800 life cycles, depending on usage and battery quality. Poor quality or poorly manufactured batteries provide fewer cycles and shorter overall life:

• Batteries top quality(class A cells) - 12-18 months.
• Medium quality batteries (class B cells) - 10-15 months.
• Batteries Low quality(class C cells) - 5-10 months.

Warranty coverage for laptops. Since most batteries fail within the first few months, it is important that the purchaser is covered by a warranty for at least one year after purchase. Therefore, he should always check the documents for the battery.

The battery is the first element in a laptop that is subject to wear and tear. Over time, the capacity of the battery decreases due to natural physical processes, and the device has to be connected to the outlet more and more often. Fortunately, this process is reversible.

CHIP asked how the aging process of a battery could be tracked and if anything could be done to extend its life.

Why is it important to monitor your laptop battery?

Because when buying a new battery, the miser can pay twice. For the sake of interest, we found out how much a new battery will cost for different series of laptops:

But don't be fooled by the lower price limit:

• Firstly, it will not be the original battery from the manufacturer. Most likely, the brand will be unknown to anyone.
• Secondly, you can be deceived with capacity. You can’t check the filling of the battery visually - perhaps it will turn out to be noticeably smaller than declared.

And anyway, why spend money if you can make a good practice - to monitor the state of the battery?

How to track battery status

Without programs

You can use the built-in Windows tools. Open command prompt as administrator and run the following command:

Powercfg.exe -energy -output c:battery.html

In the specified Windows file will provide you very a detailed report on your laptop's power consumption - both pointing out sub-optimal power settings and showing processes that are consuming a lot of battery. But you should be most interested in a small section Battery:Battery information. And the last two digits in it:

If the last full charge is much less than the battery's estimated capacity, your battery needs to be refurbished or replaced.

With the help of programs

For those who don't like to mess with command line, there are many small utilities for monitoring the battery. For example, a simple, convenient and Russified utility Battery Care.

It is remarkable for three things:

• Firstly, it monitors battery discharge cycles- from its full charge to its full discharge. When their number exceeds 30, the program notifies you of the need to restore the battery.
• Secondly, it monitors the declared and actual battery capacity, and in case they start to differ greatly, notifies of the need to restore.
• Thirdly, it calculates the percentage of battery wear, and you can see for yourself how much your battery has degraded - and whether it's time to change it.

How to repair a laptop battery with your own hands

So, you have received a signal that the laptop battery has lost capacity. There are two relatively simple ways restore battery capacity by yourself: full charge and battery controller calibration.

Full charge

Sometimes a simple procedure is enough to restore battery capacity:

This procedure allows if you do not restore full capacity - it is impossible software tools eliminate the physical wear and tear of the batteries - then at least slightly increase it in order to extend the life of the device.

The main thing - do not forget to then return to the optimal power plan in Control panels.

Battery Controller Calibration

Sometimes the decrease in battery capacity is actually fictitious. This is not a real loss of capacity, but just some kind of battery controller failure. If the system shows that you have 10% charge, it may actually be 50%, it's just that the controller fails and sends incorrect data to it. The problem is solved by calibrating the controller, that is, eliminating the failure.

At different manufacturers laptops have their own utilities for calibrating the battery controller. We have compiled a small selection for popular brands:

• Lenovo: Lenovo Energy Management
• Dell: Dell Power Manager
• HP: HP Support Assistant
• Asus: Power4Gear Hybrid

Your manufacturer (eg Samsung) may have a calibration utility built into the BIOS. Try pressing while loading Delete or F2 and select menu power arrows on the keyboard. If there is an item Battery Calibration, select it, click Enter and wait for the procedure to finish.

What to do if the battery does not recover

In this case, serious physical wear is likely, which requires the intervention of a specialist. Many service centers offer a battery recovery service. In Moscow, such a service will cost from 950 rubles - in any case, the difference compared to buying a new battery is usually quite significant.

AT service center the wizard will open your battery, disconnect from the controller and remove the batteries. After all, inside the plastic case there is just a chain of several batteries, something like this:

Self-replacement batteries are not included. That is, the batteries are not inserted into sockets, as in toys or other gadgets: their contacts are soldered together. Those who want to do repairs themselves, you need to remember the following nuances.

Dismantling the case is not so easy. According to the logic of the manufacturer, the battery is a disposable element, its repair is not provided. Therefore, the body is glued "tightly".

Old batteries must be removed. That is, sawing off welded contacts, which is actually not so simple.

New ones, respectively, need to be soldered. In production, this is not even soldering, but contact welding. It's not certain that you will succeed.

And these are not all the features of the repair: for example, before installation, each battery must be “pumped” in a special charger. So our advice to you - do not experiment, unless, of course, you are an electronics engineer. The service will do everything for you, although they will ask for money for the work. Laptop battery recovery - in fact, there is a professional replacement of batteries in the battery case.

The most vulnerable part of the laptop is the energy unit. It is mobility that is the reason for choosing a gadget that does not provide for an upgrade, unlike desktop computer. The laptop battery includes several elements of the 18650 form factor, connected in pairs to increase the total capacity, and in series, in quantity to obtain the desired output voltage. The failure of one cell will reduce the capacity and voltage of the entire battery.

The reason for the decrease in capacity may be incorrect operating conditions of the device, deep discharge of the battery. There may be a malfunction of the control chip or a break at any point, a violation of contacts with the processor. Correct diagnostics will solve the problem by 50%, the method of resuscitation of the battery will be determined. In the laptop OS, there are software that monitors the current state of the battery, you can install programs to restore the battery with your own hands.

Often in a healthy battery there is an inconsistency internal components systems. The problem dramatically reduces battery power. In this case, the battery needs to be calibrated - returning to its original capacity by aligning the work of the cells, microcircuits and the control unit. By using the BatteryCare laptop capacity recovery program, you can get an automatic assistant for free. The program itself will calibrate, it is important at this moment not to turn off the laptop and not use it. The process can take up to 10 hours.

By installing the snail, you can check the condition of the battery during the time, its balance life cycle. A worn-out battery that has reached its end of life will not benefit from calibration.

Can a laptop battery be restored?

All other methods of resuscitation, except for calibration, are associated with opening the body of the energy store. It is necessary to determine the type of cells - lithium and or nickel-metal hydride cell set is installed inside. Information can be found on the battery case. Your task will be to replace the old components with fresh ones, identical in capacity and dimensions. It is important to open the battery case without damaging the cover and the controller inside.

The resistance in the form of light bulb voltage 12 V and a multimeter. It is necessary to connect the extreme terminals with a car light bulb and check the voltage with a multimeter. If it is equal to the working one, the reason is in the controller. Below the worker - you need to find clogged banks - measuring the voltage on each. Copy the wiring diagram or take a large photograph in several positions. Carefully remove the controller, unsolder the assembly. Measure the voltage at the terminals of each element and reject.

Restoring a laptop battery after a deep discharge

The lithium battery may have discharged below the minimum threshold. Then it is necessary to deceive the controller and restore the charge of each element to 3.4 V without breaking the connection. You need to put the battery on charge without a controller, using resistance, a 5 W light bulb, and a regular charger. After raising the voltage, install the controller again, close and charge the battery locally. This is how a lithium battery is restored after a deep discharge.

A nickel-cadmium or metal hydride battery is brought into working condition by exposure to cold. You can restore the laptop battery capacity with your own hands by putting it in a thick plastic bag in the freezer for 12 hours. After the device is allowed to warm up a little, the condensate that has come out is removed from it. After 30 minutes, the battery is replaced, the power is turned on and left for 10 hours without disturbing the gadget. When charging is complete, fully discharge and recharge the battery before starting work. With the help of a freezer, even a completely dead battery can be restored for 30 minutes. It is not clear how to explain the phenomenon, but the method works.

How to restore Li-ion laptop battery

The latest laptop models are produced using lithium-ion and lithium polymer batteries. Gadgets with such energy storage devices do not tolerate cold well, they are characterized by deep discharge and subsequent charging difficulties. Restoring the health and capacity of a laptop battery with your own hands is required in the following cases:

• The working life of the cells is designed for 3-4 years, but can be exhausted much earlier, with a loss of capacity by 50%. Then the assembly is disassembled and all or part of the 18650 batteries are replaced with identical ones. The method is called "repacking".
• Controller defective. It is impossible to restore its work at home, you will need to buy a new part.
• There are damages in the power circuit, the contacts have gone, a wire break - problems are found during diagnostics, using devices.

Repair of lithium storage devices is associated with the risk of depressurization of the case and the release of harmful aerosols, fire. If the controller is damaged during opening, further do-it-yourself repair of the part is economically useless.

How to restore a laptop lithium battery

There are two types lithium batteries- lithium-ion and lithium-polymer. The latter have soft packaging, take any shape and are less dangerous when the shell is destroyed. In laptops, lithium-ion cells of the 18650 form factor are more often used, in lightweight ultrabooks - soft lithium-polymer cells.

How to restore a lithium-ion battery, what conditions must be met? For repacking, the elements are selected completely corresponding to the old ones in terms of capacity, voltage and dimensions. Procedure:

• Opening the battery cover without damage is a difficult but solvable task.
• Spend visual inspection assembly for the presence or absence of traces of breakage, short circuit, broken contacts. Take a picture of the assembly, taking into account the fact that all connections will have to be restored.
• Check the circuit for continuity with a multimeter. The voltage should be, the absence indicates an open circuit or a malfunction of the controller.
• When replacing elements, use the remaining bridges or put copper wires providing the desired contact area. Solder quickly without overheating the case.
• Make connections to the controller and temperature sensor.
• Verify proper assembly by measuring the terminals with a multimeter.

The case can be glued or connected with electrical tape. The main thing is that the battery should fall into place. To restore the charge and capacity of the laptop battery, you should swing it by making several charge-discharge cycles. In doing so, you can use special program calibration.

Video

We offer a visual lesson on how to restore the charge of a laptop lithium battery with your own hands. Pay attention to the features of connecting batteries to a battery.