Laptop battery management. Programs and utilities for calibrating laptop battery

Battery status: Comparison tables

An Asus laptop is your "workhorse", has served you faithfully, but have you recently noticed that it runs out of battery much faster? And at the same time, the charge indicator shows that the battery is still ready to work. Do not rush to panic and search urgently. Try to calibrate the battery first. How to do it correctly, you will learn from the article.

Why is Asus battery calibration needed?

Before getting down to business, you need to tell what calibration is. This is the process by which the correct parameters are set for the battery and laptop controllers. As a result, the charge indicator displays reliable information, and the battery serves as expected. The laptop stops turning off when it pleases. Calibration allows the battery to charge the battery 100% and, therefore, take longer to discharge.

The battery life of the laptop after this procedure increases markedly.

Most often, laptop batteries require calibration:, and (from)

Asus battery calibration step-by-step guide

In a nutshell, the Asus battery calibration process consists of three steps:

1. Battery charging up to 100%.
2. Complete discharge to zero.
3. 100 percent rechargeable.

Each stage has its own nuances that you need to know in order for the result to meet your expectations. Let's talk about everything in order.

Full battery charge.

• it is necessary to prepare the computer for calibration: disable the transition to sleep mode (hibernation). Follow these steps one at a time: From the Start menu, select Control Panel, then Hardware and Sound. In the "Power" tab, put the icon next to "Never". Great, now the device will not "go to sleep" ahead of time;
• connect the laptop to the mains and wait until it is fully charged. At the same time, working on the device as usual, or leaving it alone - this will shorten the charging time.

Discharging the battery.

• when the indicator showed that the Asus battery is 100% charged, disconnect the laptop from the power supply;
• now wait until the device is discharged to 0. The battery can be "helped" by using the laptop to its fullest: watch videos, listen to music, play your favorite games, run other energy-intensive programs;
• watch the charging indicator - the lithium-ion battery must not be completely discharged. Complete discharge is easy to check: the screen went out and the laptop does not start even when you press the power button.

Battery charging up to 100%.

• as soon as the laptop is completely discharged, immediately connect it to the mains. Leaving the computer alone or working as usual is up to you, there is no consensus among experts.
• After fully charged, disconnect the device from the power supply. Calibration is complete, now the Asus laptop battery should work correctly, the indicator will reflect reliable information.

In addition to manual calibration, there are special utilities that will carry out the entire process on their own. You can start this operation through the BIOS, or by downloading a special utility.

A few words about the right attitude towards the Asus battery

You can extend the life of your Asus lithium-ion battery by knowing and following a few simple rules:

1. Watch the temperature: it is impossible for the laptop to be turned on in a frost of -100 or in a heat from 350C. Extreme cold has a detrimental effect on a charged battery; it can be instantly discharged or even damaged. High temperatures increase the risk of damage and even explosion of the battery during operation.
2. Do not leave the battery completely discharged for an extended period. An "empty" battery takes 10-14 days to deteriorate completely.
3. If you constantly work from the mains, it is better to disconnect the battery so that it does not wear out.
4. Calibrate your laptop every 2-3 months to keep the battery working properly.

Almost every model of a modern laptop is equipped with lithium-ion batteries of different capacities, depending on the specific equipment. This approach makes it possible to ensure long-term operation of the device in one charge cycle, which is valuable for portable equipment. One way or another, any battery gradually loses its capacity over time and discharges faster, especially with heavy loads on the central processor, video card and hard drive. However, if you use your laptop correctly, then the threshold for degradation of offline performance will be very slow.

Calibrating a laptop battery is the most important step in the initial setup of a new device, which is also relevant for other equipment running on Li-ion batteries, for example, smartphones and tablets. This procedure is recommended to be carried out both immediately after purchasing a laptop and during its use. Calibration implies the deliberate conduct of charge-discharge cycles, and is done so that the chip controller can display the real percentage without glitches. In addition, this procedure sometimes helps to "extend the life" of the battery, when, for example, there is a sharp drop in charge or autonomous work lasts no more than 20-30 minutes in normal load mode.

Today this operation can be done in several ways, and one of them is manual calibration using standard Windows tools. The method works on any OS version and is practically the same, all you need is attentiveness and strict adherence to instructions. First you need to check the current battery capacity and its level at one hundred percent charge. Superficial information can be obtained as follows:

• Insert the charger and wait until charging is complete;
• Disconnect the laptop from the network;
• Check the power settings for the battery level.

In the event that immediately after disconnecting the charger from the socket, the percentage is less than 100, then you need to calibrate the battery.

The Windows OS toolkit also assumes the possibility of obtaining more detailed information. The command line will help you find out, which opens by entering the command "CMD" in the search, you need to run it as administrator by right-clicking and selecting this parameter. Then type in the value powercfg.exe -energy -output d: \ report.html, where D is the name of the local drive, which in your case may be different (C, E, and so on). This is where the report file will be saved with the name report and the extension .HTML. Open it using any browser and scroll to the "Battery Information" tab, then compare the last full charge and the calculated capacity. If the first is much less than the second, then be sure to calibrate the battery.

Windows operating tools provide only information about the state of the battery, and the calibration procedure must be carried out manually or using specially designed software. At first, it is better to try to do everything with your own hands and if there is no result, resort to software. Manual calibration is carried out in several steps:

• Full battery charge;
• Power supply shutdown and discharge to 0;
• Connecting to the network.

It is very important here to set the power supply mode correctly, because by default the system selects "Balanced". It is recommended to set “High Performance” in the settings with the above procedure, as this turns off various energy-saving technologies and increases the likelihood of a successful calibration. In addition, when the battery level is low, the laptop will go into sleep or hibernation mode and will not allow the battery to "drain" to zero.

Laptop battery calibration software can play a very important role and help you to cope with this task as efficiently as possible. In addition, when using the software, the whole process is carried out automatically and the user does not need to change any configuration. However, it should be borne in mind that a variety of programs are used for each laptop model.

In most cases, ASUS laptop battery calibration is carried out in the BIOS, since this manufacturer often integrates the necessary application in the form of a technological tool of the motherboard. Most often, this feature is present in the Phoenix BIOS, but you can check it yourself:

1. Disconnect the power adapter from the laptop;
2. Reboot or turn on the device, and then press F2 (sometimes another F-ka);
3. Go to the BOOT tab and find the Smart Battery Calibration menu, start the process.

Note: It is recommended to search for this item in all sections of the BIOS, and its name may also differ, but the word Battery is always present in it. If there is no item, then it is better to calibrate manually according to the scheme described in the previous section of the article.

For laptops from manufacturers such as Samsung and Acer, there is an excellent calibration program on the Internet called. Its peculiarity lies in the possibility of faster discharge-charge cycles, due to the fact that it automatically starts the process of searching for the Number of Pi, while giving the maximum load on the central processor. In general, its main purpose is to test and diagnose the state of the battery, both in idle mode and at peak loads. With its help, you will be able to carry out several cycles in one hour by choosing an accelerated method and high performance in the laptop settings.

The notorious manufacturer Lenovo has released a profile utility for its Idea line of laptops with the name. It is quite versatile in terms of battery calibration, providing the user with comprehensive information and a means of correctly configuring the battery. Before starting the procedure, connect the power supply, close running applications and background processes, and do not use the gadget during the action.

- very useful official software for Hewlett-Packard laptops. A large arsenal of tools makes it possible not only to calibrate the battery, but also provides a variety of functionality for diagnosing the general condition of the device. In the "My Computer" section you will find a battery check point and after the test, the program will notify you of the most preferred actions.

Every experienced user of portable gadgets already knows and adheres to generally accepted advice on how to avoid or, at least, delay the battery life as much as possible. First of all, don't use it. This is by no means a joke, because when you are working at the device and there is an outlet nearby, you need to remove the battery and connect the power adapter to the connector, so when you really need battery life, you will have much more time. This is due to the fact that any battery has a predetermined number of cycles and energy consumption, which in any case is lost in the course of natural use.

Further, if you are not using the battery, then it is most advisable to leave it at 60-70 percent. Surely you have never paid attention, but a new gadget, be it a smartphone or a laptop, always shows exactly this level of charge when you turn it on for the first time. Lithium-ion batteries do not like being overcharged and completely drained. And lastly, always try to comply with the recommended operating conditions, that is, do not overheat the gadget, do not use the laptop in rooms with high levels of humidity or at low temperatures. In general, in the instructions, all these tips are set out in an understandable and accessible language.

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A laptop is considered by many owners as a portable device that, if necessary, you can take with you on a trip, to the country or just work in a cafe. In such situations, it is important that the computer can work autonomously for as long as possible - without being connected to the network.

Why calibrate laptop battery

Laptop batteries have a certain charge level that cannot be exceeded due to chemical processes in the device. If the battery controller is not working properly, which is a consequence of connecting the laptop to a power source at different charge levels, the maximum battery capacity may decrease.

Example: The actual battery charge may be at 90% and the controller will detect it as 50%. When the charge drops to 5-10% according to the controller, the laptop will go into sleep mode. In this case, the real level of battery capacity will be at the level of 45-50%, but the owner of the computer will not be able to use the remaining energy.

To avoid situations in which the controller incorrectly determines the battery level of the laptop, it is necessary to calibrate the battery from time to time. Its meaning is to "remind" the battery controller of which charge level is maximum and which is minimum.

When to calibrate your laptop battery

There are recommendations from battery manufacturers that calibration should be performed every 2-3 months, depending on the intensity of work at the computer. However, it is easier to determine if a battery needs to be calibrated by checking its parameters at a specific point in time. To find out if the battery needs calibration, do the following:

It is worth noting that battery calibration will not make the full charge and calculated capacity identical in any case. This is due to the chemical processes taking place in the battery, which do not allow the battery to be restored to its original state.

How to calibrate laptop battery automatically

Before proceeding with the calibration of the laptop battery, it should be said that this procedure will take several hours. Do not use a laptop during automatic calibration of the battery power supply.

Almost every laptop manufacturer installs different software on their devices. Among them, most often, there is a utility that is responsible for battery operation. Through it, you can find out about the state of the battery, configure the power settings and, in particular, perform calibration. Below we will consider the option of calibrating the battery using the example of the Energy Management application, which is supplied with Lenovo laptops, but the principle of operation of such programs is identical.

To calibrate your Lenovo laptop battery through the Energy Management app, you need to:

The calibration process assumes that the laptop is charged to 100%, and then discharged to 0%. During automatic calibration, do not use the computer and do not close the lid of the laptop, since the screen is the main consumer when the battery is discharged.

Note: If you can't find a "native" battery calibration application on your laptop, you can use third-party solutions. There are dozens of free utilities with similar functionality, such as Battery Eater or BatteryCare.

It is worth noting that some laptop manufacturers do not install a separate application for diagnosing and calibrating the battery, but integrate this functionality into the BIOS. For example, HP is doing this by building a battery calibration utility into the Phoenix BIOS. It is called Smart Battery Calibration and can be found under the Boot tab.

The location of the utility may differ in other BIOS versions and on other computer models. Before flattering the BIOS for using the battery calibration function, it is recommended that you read the information on the computer manufacturer's website and make sure that such functionality is provided.

How to manually calibrate laptop battery

Since the calibration procedure implies a full charge-discharge of the battery and no more manipulations, it can be performed manually without third-party applications. To do this, you must first change the Windows settings, because laptop computers go into sleep mode when the battery power drops to critically low values, and this will prevent the battery from completely draining. To calibrate the laptop battery, set up the device power supply as follows:

After that, the newly created power plan will be automatically applied. Next, you need to fully charge the laptop battery and remove the power adapter. After that, you need to wait until the computer is completely discharged, while you can use it, but do not forget to save your work, since the laptop may turn off at any time. When the computer battery is completely discharged, you need to recharge it to 100%, and then you can switch the computer to standard power mode, as the calibration process will come to an end.

Laptop owners who notice that their device is draining quickly are often interested in a process such as calibrating the battery. What is this process? Do I need to carry it out? What types of batteries need to be calibrated? What effect can you expect from a battery repair?

What types of batteries are there?

Before calibrating a battery, you need to know what type of batteries are to be treated with a given type.

A distinction is made between the following types of batteries:

• Ni-MH (Nickel Metal Hydride) and Ni-Cd (Nickel Cadmium) batteries are the batteries used in older laptops. They are quite heavy, resistant to temperature changes and have a charge memory effect. When fully charged, such batteries should not be used together with a direct connection to the mains, as this can adversely affect the operation of the drive.
• Li-Polymer (lithium polymer) is a completely new type of battery, based on the Li-Ion battery. However, a polymer material is used as the electrolyte. The main role in this battery is played by the charge controller. This type of battery holds a charge up to 8 hours.
• Li-Ion (lithium-ion) is the most common type of battery that is used not only in laptops, but also in tablets, smartphones and regular mobile phones. This type of battery has a larger capacity and smaller size than a Ni-MH battery. It has no memory effect, and therefore the user can charge or recharge such a battery at any time.

It is important to note that the battery controller plays a major role in modern charging. He monitors the condition of the battery. If you disassemble the battery, you can see several batteries that are connected to a special board. This is the charge controller. By measuring the voltage on each of the batteries, it gives information about the state of the total charge of the battery, and based on this data, the approximate time until the next recharge is calculated.

It is important to note that when calculating the battery capacity, the controller calculates in Watt-hours, and not in amperes. In amperes, the charge is deducted in household appliances, but not in laptops.

How to determine the battery charge?

To determine the battery status, you need to run the command line with Administrator rights and enter "powercfg.exe -energy -output d: Nout.html", where d is the drive to which the report file will be saved.

The battery test starts.

The system will notify you of the battery status. For detailed data, go to drive D (or whatever you specified).

After opening the file, we look at the detailed information about the battery.

What are the ways to calibrate the battery?

If the last charge is lower than the calculated capacity, it is worth calibrating. If the numbers are the same, there is no need to calibrate the battery.

Manual calibration is the safest, as it will not harm the battery or negatively affect the controller's performance. In order to complete it you need:

• Charge the battery 100%;
• Discharge the battery until the device is completely turned off and, with the power off, turn on the laptop until it refuses to start at all;
• Recharge the battery to 100%.

IMPORTANT! As soon as you unplug your laptop, it will change its power plan. Upon reaching a certain low battery level, the laptop will automatically enter sleep mode. Accordingly, it will not be possible to completely discharge it. You can solve this problem as follows.

• Go to the "Control Panel" and select "Power Supply".

• A new window will open. In the menu on the left, select "Create Power Plan".

• We put a mark next to the item "High performance" and give the plan a name.

• The next step is to prevent the display from turning off and leaving the laptop to sleep.

• Now you can discharge your laptop battery.

IMPORTANT! After completing the above steps, the controller failure will be resolved. Calibrating the laptop battery does not increase the operating time of the device without connecting to the network, since it is impossible to restore the physical deterioration of the battery using software methods. But the battery capacity will be displayed correctly.

The battery can be calibrated through BIOS settings. However, not all motherboard firmware versions support this feature. To perform a calibration in this way, it is worth doing the following:

• Reboot the PC and press "F2" and "Del" when the motherboard logo appears. We load into BIOS.
• Find the "Boot" section and run "Smart Battery Calibration" by selecting "Yes".

• Calibration will take several minutes. The system will notify about the completion of the process. Only after that it will be possible to restart the PC.

It is worth noting that many laptop manufacturers provide their own utilities to calibrate the battery. You can download them on the official website of the manufacturer. Calibration should be done no more than once every 6 months.

For more information on how to calibrate the battery, see the video: