How to flash a battery controller. Reset the battery controller

At one time, laptops gained immense popularity due to the ability to work on battery power, which made it possible not to be chained to one place and to perform the necessary work almost anywhere. The first models could not last long without a charge, and the nickel-metal hydride batteries used had a bunch of drawbacks. But manufacturers did not sit idly by, and over several decades, battery technology has undergone dramatic changes. Today, the vast majority of laptops use lithium-ion batteries. They can last quite a long time and are devoid of many of the shortcomings of their predecessors.

Nevertheless, they are not perfect and over time they can also become unusable. A battery malfunction is expressed in the fact that it is very quickly discharged, or the laptop incorrectly displays the charge level. In this case, manufacturers and sellers of equipment recommend purchasing a new battery. But, since the cost of the original component is quite high, you can try to correct its work yourself. Depending on the extent of the damage, either the battery cells need to be replaced, or a reset of the laptop's battery controller will suffice.

It is about the latter possibility that we want to talk in more detail in today's material. You can find out in which cases you need to reset the controller, and we will also talk about possible ways how you can do it yourself at home.

To begin with, it is worth figuring out what a battery controller is. This is a small microcircuit built into the battery itself, which controls its operating condition, as well as the process of charging and discharging. It interacts with the power controller on the motherboard of the laptop itself, and also transmits the necessary system information to the operating system. We hope you understand the diagram. We tried to describe everything in simple terms, but if you want to know the technical details, search the Internet.

When this little chip stops working correctly, it may be necessary to reset the controller. Popularly, this procedure is also known as battery calibration. By and large, there are only two situations when this may be required: incorrect charge display and replacement of battery cells.

An incorrect charge display should be understood as a situation when the laptop operating system, even after a long charge, shows that the charge level is less than 100%, or the charge drops sharply, and the laptop does not turn off after a few hours, as it should, but much faster. Many begin to think that the battery has become unusable, but this is not always the case. The problem very often lies in its controller, which simply incorrectly displays the charge.

By replacing battery cells, I mean that in some workshops and service centers they can offer the so-called repacking of the battery, that is, to replace the indoor units that have become unusable. The controller must then be reset so that all new elements are recognized and can be properly enabled. Although, if after replacing the blocks something does not work, you have every right to make a claim and demand that the defects be corrected.

Now let's look at how to reset a laptop battery controller. Let's touch on software and manual methods.

Software reset of the controller

On some sites you may see a recommendation to use the Battery EEPROM Works program. This is indeed a very powerful and advanced utility that can, in some cases, literally reanimate the battery. But there is one big BUT! To use it, you need to know a lot and be able to understand electrical circuits, as well as have the necessary adapters, which are far from always easy to get on the free market. We will not recommend this program to you for use in home devices, as it is very easy to permanently damage the battery. What then is right for you?

Battery EEPROM Works window

Almost every manufacturer has built-in power management utilities. It can be downloaded from the support site, from the driver download page for your device, and in some cases, the utility may be either preinstalled or written to the included driver disk. Select the reset or calibration function and follow the on-screen instructions exactly. Most often, the utility discharges the battery to zero, after which it charges up to 100%. The controller will remember the extreme indicators of the charge level and will work, as it did immediately upon purchase.

Manual controller reset

If for some reason you cannot find or install the power management utility, you can manually reset or calibrate the battery. How?

Disconnect the laptop from the electrical network, then put it into BIOS mode. You can read more in the article how to start BIOS mode.
Leave the laptop and do not touch it until it is completely discharged. Make sure it doesn't overheat.
Without turning on the laptop, put it on charge. Wait for it to be fully charged, for this you can leave it on all night.

In 99% of cases, such simple actions will help bring the battery back to life. Well, if this does not help either, buy a new battery, or connect the laptop directly to the outlet, while removing the battery.

If you use a laptop only at home, then for less wear on its battery, it would be better to remove it. But before that, charge it to about 80%, and also check the charge level from time to time, as it is prone to self-discharge. After removing, connect the laptop to the power supply and use it as a desktop computer. This option is suitable for those who have a laptop only in one place, since with this use you can lose data if you disconnect the laptop from the power source during operation.
To increase the time spent on your device, set the appropriate options in the power plan settings. Use the power saving mode if necessary.

Conclusion

Friends, today we talked about how to reset the laptop charge controller. We learned that sometimes the problem is not only in the hardware of the computer, but also in the software. Therefore, there is no need to rush to immediately order a new battery. We hope that everything worked out for you, and there are no questions left. Don't forget to share your opinion in the comments.

There are two options for resetting the laptop battery controller - using special programs or manually. It is worth carrying out this procedure when the battery was repaired, or when the software responsible for charging failed.

Software Calibration

If you have changed battery systems in the battery, then this method will be very effective. Now you need to reset the controller, otherwise correct operation will be impossible. The program that comes in handy is called Battery EEPROM Works. Among its functions:

Stitches the indicators of residual capacity. It must be set according to the corresponding value that the battery acquired after the repair.
Resets the cycle counter.
The release date is set according to the one shown on your device.

After the manipulations, the battery starts to work from zero. If you ignore the calibration, then there is a risk of ruining the battery itself, as the laptop will start to turn off periodically.

Zeroing the controller manually

In order to calibrate in manual mode, special software is not needed, professional skills are also not needed. The algorithm of actions is as follows:

Unplug the adapter from the network and restart the device. Call the BIOS service before the system has fully booted.
Now leave the laptop on. If it tends to overheat, then install a cooler first.
After the laptop has turned off, you can plug the adapter into the network and wait until it is fully charged. Now the battery will work in the correct mode.

This method is suitable when there are problems with the software, and the battery itself does not need to be repaired.

Some readers of the site send us questions about how to reset the battery controller of a particular laptop. Here it is worth clarifying what is meant by resetting the battery controller. If the elements were replaced in the battery and then a firmware reset is required, this is one case. If there is a problem with the battery that is not related to its repair (failure in the software or OS), then this is a different case. Let's take a quick look at both of these options.

Resetting the battery controller when replacing battery cells

This procedure is required after you have replaced the batteries in the battery. In general, such battery repairs are carried out in service centers. It can be done at home, but for this you need to have the appropriate skills and experience, as well as the necessary equipment. The procedure for replacing battery cells is also called repacking.

After the elements have been replaced, you need to reset the firmware or reset the laptop controller. The Battery EEPROM Works utility can be used for this. What does the program do:

Flashes the remaining capacity (Full Charge Capacity). You set it according to the real value. That is, for the controller, this value will become the actual capacity of these battery cells at the moment;
The cycle counter is reset to zero;
The release date (Manufacturer Date) is set to the current one from your PC.

Battery EEPROM Works

After resetting the controller, the battery starts to "work from scratch". More precisely, the lithium cells themselves, which have been replaced, work from scratch.

If this is not done, then problems will begin during the functioning of the battery. For example, a laptop will shut down when the battery is not fully discharged. This is explained by the incorrect value of the residual capacity, which remained in the controller's memory before the elements were replaced. The old number of charge-discharge cycles, etc. will also be displayed.

Resetting the battery controller in case of problems with the software

Beneath this reset is what is commonly referred to as battery calibration. It consists in fully discharging and then charging the battery. With a stretch, this procedure can also be called a reset. After all, the controller notes in its memory the full discharge and charge. Therefore, the process is called calibration. At the same time, the charge and discharge boundaries are calibrated, which makes it possible to eliminate errors during battery operation.

Laptop Battery Calibration

Earlier we already talked about various programs for calibrating a laptop battery. To do this, it is better to use the laptop manufacturer's utilities, if any. In addition, some models have a built-in calibration feature in the BIOS. In the absence of both, you can use third-party programs.

You can also easily calibrate manually. To do this, fully discharge the laptop battery, and then fully charge it. What needs to be done for this:

Disconnect the power adapter from the network, restart the laptop and call the BIOS (buttons F2, Del, etc.) before loading the operating system;
In this state, leave the laptop until shutdown. It is desirable that it stand on a cooling pad to improve heat dissipation;
After turning off the laptop, plug in the power adapter and fully charge the battery.

This is how manual calibration is performed. Additionally, you can read the article about the reasons why the laptop battery does not charge. If the material was useful to you, share the link to it on social networks. This will help the development of the site. Vote in the poll below and rate the material! Additions and corrections leave in the comments to the article.

Back to content

Take part in the survey!

Laptop battery: controller reset, firmware and reset

At one time, laptops gained immense popularity due to the ability to operate on battery power, which made it possible not to be chained to one place and to perform the necessary work almost anywhere. The first models could not last long without a charge, and the nickel-metal hydride batteries used had a bunch of drawbacks. But manufacturers did not sit idly by, and over several decades, battery technology has undergone dramatic changes. Today, the vast majority of laptops use lithium-ion batteries. They can last quite a long time and are devoid of many of the shortcomings of their predecessors.

When to Reset the Battery Controller

Replacing the laptop battery

Now let's look at how to reset a laptop battery controller. Let's touch on software and manual methods.

Software reset of the controller

Battery EEPROM Works window

Manual controller reset

If for some reason you cannot find or install the power management utility, you can manually reset or calibrate the battery. How?

Disconnect the laptop from the electrical network, then put it into BIOS mode. You can read more in the article how to start BIOS mode.
Leave the laptop and do not touch it until it is completely discharged. Make sure it doesn't overheat.
Without turning on the laptop, put it on charge. Wait for it to be fully charged, for this you can leave it on all night.

If you use your laptop only at home, then to reduce wear on its battery, it would be better to remove it. But before that, charge it to about 80%, and also check the charge level from time to time, as it is prone to self-discharge. After removing, connect the laptop to the power supply and use it as a desktop computer. This option is suitable for those who have a laptop only in one place, since with this use you can lose data if you disconnect the laptop from the power source during operation.
To increase the time spent on your device, set the appropriate options in the power plan settings. Use the power saving mode if necessary.

Conclusion

NastroyVse.ru

Reset the battery controller

2014-07-09 EVK IT Service 135899

Let's see what batteries are in principle: - NICKEL-CADMIUM BATTERY - (or NiCd for short) nickel-cadmium; - NICKEL METAL-HYDRIDE BATTERY - (or NiMH for short) nickel-metal hydride;

LITHIUM ION BATTERY - (or Li-ion for short) lithium-ion batteries.

Recently, Li-ion batteries have been used.

The first thing to do is calibrate the battery. In fact, there is a controller calibration.

First you need to discharge the battery to the end - turn off the power supply, reboot, intercept the boot (so that the OS does not boot) by calling the BIOS setup.

Put the laptop on the end like an ajar book (for better cooling - with the muzzle up if it is on the side) and leave until it turns off until the entire battery is dropped.

Usually, the controller notes both events (full discharge and full charge), after which it starts to count the charge correctly - for some time, until the charge measurement error again occurs.

If all of the above did not help, I'm afraid you will have to change the battery completely. We have almost any laptop batteries.

Ask questions to our managers by phone or via icq and skype.

Pinout of the 9-pin DELL battery connector

Program for working with laptop batteries. The process of repairing a laptop battery can be conditionally divided into two parts: replacing cells and editing the contents of the EEPROM or internal flash memory of the battery controller. If the replacement of elements is a simple process, accessible to any novice radio amateur who owns elementary skills in handling a soldering iron / spot welding machine, then programming the controller is a difficult stage of work, accessible only to a repairman who has enough knowledge and experience. The Battery EEPROM Works software is specifically designed to make the second step of battery repair as easy as possible. Battery EEPROM Works makes this step as easy as 1-2-3. The user only needs to connect the memory chip (EEPROM) to the adapter and press the RESET button. All other actions will be done by the program. The remaining capacity (Full Charge Capacity) will be what you set before pressing the RESET button and will display the actual capacity of the new cells. The Cycles Count will be set to zero. The Manufacturer Date will be changed to the current date on your computer. The blocking (Permanent Failure Flag) will be removed, as well as all other necessary changes will be made. The data in the controller will be like a new battery.

Battery EEPROM Works supports most laptop batteries from different manufacturers

Download be2worksdemo_167.zip

Key Features Reading SMbus data via laptop battery connector. Saving SMbus data to a text file. Saving data in own BQD format (BQ208X data file), for further use in cloning bq208X chips. Read and write all memory chips used in laptop batteries. Reading and writing data from flash memory and EEPROM in chips with integrated memory, such as: BQ2083, BQ2084, BQ2085, PS401, PS402, BQ20Z70, BQ20Z80, BQ20Z90. Saving data from flash memory and EEPROM in BIN format. Resetting (zeroing) the parameters of the microcircuit to the initial (factory) parameters in one click of the mouse.

Clone password-protected integrated flash chips (bq208X) to new or non-password protected chips.

Laptop Battery Replacement | Reset laptop battery charge controller | Laptop battery calibration | Laptop battery pinout

Omsk forum:: (Reset the battery controller (battery) Asus A35-K52.)

Indoorser wrote: ...Usually the controller marks both events (full discharge and full charge), after which it starts to count the charge correctly - for some time, until the charge measurement error again occurs. Didn't try. The bottom line is, if you remove the battery and measure with a multimeter according to the pinout of the connector, when a minus is applied to the S-signal minus through a 1 kOhm resistor, voltage should appear on "+" and "-". They took specifically exactly the same working one, they checked it, everything appears, if you remove the signal from S, it disappears. There is no voltage from this battery. It does not appear when applied to S. Therefore, the laptop sees it, or rather it sees the battery controller, and it blocks the supply of voltage to it, as well as from it. accordingly, even if you turn it on from the battery, it does not sit down, it does not even try to turn on from it, there is no voltage from it. Therefore, in a similar way, it will not work to discharge it, as well as to charge it. Charged directly opened, but up to 4.2V to the maximum for each element was not brought out of harm's way. Therefore, it is not a matter of an error in measuring the charge and some kind of error. And in blocking the battery controller from charge and discharge. Since there was a fuse blown in order to prevent overcharging, so as not to explode.

Flash eeprom is also there, and an error is recorded there that the battery is defective. You need to throw it off, or overwrite the normal bit there, that the battery is new)

omsk.com

Laptop Battery Calibration

Each of us has faced the problem of reducing the life of portable devices. If earlier your mobile phone or laptop worked for 2-3 days, now you need to charge it every day, have you noticed? It's all about the battery, more precisely, in its volume. In this article, we will look at the principles of calibrating modern lithium-ion batteries, it's a simple process, you can do it.

During operation, the volume of the battery decreases, this is due to the gradual knocking down of the battery controller. A downed controller can indicate that the battery is charged when it is only 70% full, thus significantly reducing the duration of your device.

As mentioned above, modern lithium-ion batteries consist of a controller and battery cells. The controller monitors the voltage in each of the cells, so the voltage is maximum, which is equal to 100% battery charge or 4.2 volts of voltage in the battery cells.

In order to return the device to its former working life, the battery is calibrated, this is a simple process and anyone can follow the simple instructions below.

Battery calibration consists of three points:

1. We charge the battery up to 100%. 2. We discharge the battery to 0.

3. We charge the battery up to 100%.

Only 3 short points, now let's figure out how to do it right. After you charge the battery to the maximum, it will need to be discharged to full zero, while the values \u200b\u200bof the charge level of the battery cells on the controller will equalize, at which point they will all be equal to 0%. After that, the battery can be called calibrated, in order to consolidate success, it is necessary to charge the battery again to 100%.

Now about the pitfalls of the process, in order to discharge the device, it must be disconnected from the power supply, but as soon as you do this, the laptop will change the power consumption mode to a more economical one and turn off the display without your long attention, and then go into sleep mode.

Thus, you will need more than one day to discharge the battery completely. But you and I are practical people and value our time, so we need to discharge the battery quickly, and, therefore, prohibit the device from falling asleep. To prevent the laptop from automatically turning off when the power is off, you need to change the power plan, you can do it like this:

Go to Start > Control Panel > Hardware and Sound > Power Options

Select Create a power plan from the menu on the left. We set the switch to high performance, this will allow the computer to use all its power and drain the battery faster, enter the name of the power plan. Battery Calibration - would be a reasonable name.

In the settings of the power plan, we prohibit turning off the display or switching to sleep mode by selecting the appropriate values in the opening windows.

A plan for a quick battery calibration has been created, select it and wait for the result.

If you do not have a strong desire to create new power plans, or for some reason this is not possible, use another method, go to the BIOS.

In order to enter the BIOS, it is necessary when you turn on the laptop, but before the operating system starts loading, press the Del key, this is the most common key, but there may be options, such as: F2, F10, Esc.

A reasonable option would be to quickly press these 4 keys immediately after turning on the device. While in BIOS, the laptop will not be able to turn off the screen or go to sleep, it will work until the last.

The disadvantages of this method will be the lack of a battery indicator in the BIOS and the inability to predict when the laptop will turn off. In addition, a discharged battery must be immediately connected to the network, to start the charging process, in order to avoid negative consequences, it is better not to hesitate.

In addition to manual calibration methods, owners of Lenovo and HP laptops can use the official utilities from the manufacturer, I will leave links to their downloads at the end of the article.

I would also like to add a few tips regarding the operation of lithium-ion batteries:

1. Batteries do not feel good at temperatures from minus 10 to plus 35. At low temperatures, the battery discharge is significantly accelerated, it can fail, at high Celsius values there is a possibility of an explosion, be careful when using batteries and observe temperature conditions.

2. Li-ion batteries should not be completely discharged, as this will harm them.

3. Manufacturers do not recommend keeping the laptop constantly connected to the power grid, this accelerates battery wear. Lenovo laptops have a special mode that uses only 50% of the battery when powered by the mains, thus extending its life.

That's all, reliable batteries for you.

Battery Calibration on Lenovo website
Battery Calibration at HP website

Let's see what kind of batteries are in principle:
- NICKEL-CADMIUM BATTERY - (or NiCd for short) nickel-cadmium;
- NICKEL METAL-HYDRIDE BATTERY - (or NiMH for short) nickel-metal hydride;
- LITHIUM ION BATTERY - (or Li-ion for short) lithium-ion batteries.

Recently used batteries Liion.

The first thing to do is calibrate the battery. In fact, there is a controller calibration.

First you need to discharge the battery to the end - turn off the power supply, reboot, intercept the boot (so that the OS does not boot) by calling the BIOS setup.

Put the laptop on the end like an ajar book (for better cooling - with the muzzle up if it is on the side) and leave until it turns off until the entire battery is dropped.

Usually, the controller notes both events (full discharge and full charge), after which it starts to count the charge correctly - for some time, until the charge measurement error again occurs.

If all of the above did not help, I'm afraid you will have to change the battery completely. We have almost any laptop batteries.

Pinout of the 9-pin DELL battery connector

Program for working with laptop batteries.
The process of repairing a laptop battery can be conditionally divided into two parts: replacing cells and editing the contents of the EEPROM or internal flash memory of the battery controller. If the replacement of elements is a simple process, accessible to any novice radio amateur who owns elementary skills in handling a soldering iron / spot welding machine, then programming the controller is a difficult stage of work,
available only to a repairer with sufficient knowledge and experience. The Battery EEPROM Works software is specifically designed to make the second step of battery repair as easy as possible. Battery EEPROM Works makes this step as easy as 1-2-3. The user only needs to connect the memory chip (EEPROM) to the adapter and press the RESET button. All other actions will be done by the program. The remaining capacity (Full Charge Capacity) will be what you set before pressing the RESET button and will display the actual capacity of the new cells. The Cycles Count will be set to zero. The Manufacturer Date will be changed to the current date on your computer. The blocking (Permanent Failure Flag) will be removed, as well as all other necessary changes will be made. The data in the controller will be like a new battery.
Battery EEPROM Works supports most laptop batteries from different manufacturers

Download: You cannot download files from our server

Key features
Reading SMbus data via laptop battery connector.
Saving SMbus data to a text file.
Saving data in own BQD format (BQ208X data file), for further use in cloning bq208X chips.
Read and write all memory chips used in laptop batteries.
Reading and writing data from flash memory and EEPROM in chips with integrated memory, such as: BQ2083, BQ2084, BQ2085, PS401, PS402, BQ20Z70, BQ20Z80, BQ20Z90.
Saving data from flash memory and EEPROM in BIN format.
Resetting (zeroing) the parameters of the microcircuit to the initial (factory) parameters in one click of the mouse.
Clone password-protected integrated flash chips (bq208X) to new or non-password protected chips.

Calibrating the laptop battery allows you to fix controller errors in which the actual battery capacity does not match the values that the system determines. As a result of this failure, the laptop's battery life is significantly reduced, which causes inconvenience to users.

When to do it

Consider a specific example: the actual battery charge is 70%. Due to incorrect operation of the controller, the system displays a charge of 40%. When the system sees that the charge has dropped to 10%, the laptop will be sent to sleep. However, the actual battery capacity will not be 10%, but 40%, that is, you could use the laptop offline for another hour.
To fix this error, you need to do a battery calibration. This procedure also helps to get rid of the “memory” effect, in which the battery “remembers” the charge level when the laptop is connected to the network, and subsequently gives energy up to this limit, that is, the battery capacity is not fully used.

The "memory" effect occurs in nickel-cadmium (NiCd) and nickel-metal hydride (NiMH) batteries, but there is no such problem in lithium-ion batteries.

Determination of battery capacity

Before calibrating the battery, check if the battery needs to be carried out at all. You can do this with the command line:

Run a command prompt with administrator privileges.
Run the powercfg.exe -energy -output d:Nout.html command. The last value (d:Nout.html) indicates the save location and the name of the report file.
Wait for the analysis to complete. Navigate to drive D: (you may have another drive) and double click on the created Nout file. It will open in the browser.
Scroll down to the Battery Information section. Look at two parameters - the estimated capacity and the last full charge. The chemical composition is also indicated here - NiCd, NiMH or LIon.

If the last full charge is much lower than the maximum capacity, then you need to calibrate the battery. Recalibration will help fix a failure in the laptop battery controller. It is important to understand: the battery will not be restored to its original state, you will only eliminate the error due to which the battery capacity is incorrectly determined.

Automatic calibration

There are several ways to calibrate using special programs on different laptops.

energy management

Lenovo laptops have a special utility that allows you to calibrate the battery meter. All Lenovo Idea laptops come with an Energy Management program that allows you to manage your power supply.

The calibration process will take a long time - the battery will first be charged and then completely discharged. It is impossible to interrupt the operation, it is also not recommended to use a computer.

Phoenix BIOS

There are programs of this kind on other laptops. HP laptops are equipped with a utility that allows you to check the status of the battery and, if necessary, calibrate it, correcting an error in determining the charge level.

On some laptop models, the calibration program is embedded in the BIOS. Let's see how to calibrate the battery using Phoenix BIOS as an example:

It is important that the power adapter is disconnected during the battery setup procedure. Otherwise, when you run the utility in the BIOS, you will see a warning.

If you did not find the built-in calibration tools, you can download a universal program for all laptop models - BatteryCare, Battery Eater, etc. However, it is better to use standard tools, avoiding third-party software.

Manual calibration

If you do not have a program on your laptop that allows you to calibrate, and there is no way to download a universal utility, then you can perform the procedure for fixing the controller error manually. You can calibrate the battery in three steps:

Charge the battery to the maximum.
Discharge it completely.
Charge again to 100%.

The problem is that as soon as you disconnect the laptop from the network, the power plan on it will change. Upon reaching a certain level of low charge, the laptop will go into sleep mode, that is, it will not be possible to completely discharge it. Let's fix this shortcoming:

The plan you created will be automatically selected.

Another option is to go in and wait for the battery to run out. Almost all laptops in the BIOS do not have charge control, so the laptop will not be able to turn itself off until the battery runs out.

To calibrate, use the laptop until it shuts down due to a dead battery (power adapter off, device running on battery only). Next, you should connect it to the network as soon as possible - it is harmful for the battery to be in a discharged state for a long time.

After following these steps, the controller failure will be resolved. Calibrating a laptop battery does not increase battery life - it is impossible to restore the physical wear of a battery using software methods. But the battery capacity will be determined correctly, which will allow the most efficient use of the available charge.

	Easy to pick up at Nova Poshta Delivery across Ukraine by new mail. 1543 branches in Ukraine. Payment upon receipt after verification at the Nova Poshta branch
	Convenient to pay Cash, cash on delivery, Webmoney, installment plan, on the Privat Bank Card
	A large assortment Batteries for laptops, phones, tablets, screwdrivers