3 Steps To Reset The Battery Calibration On Your Asus Laptop. Battery calibration BIOS

How to Reset PC BIOS/CMOS

This guide details how you can reset your BIOS (or CMOS) to its default settings. This guide applies regardless of the Windows version you currently have installed on your computer, including Windows 10, Windows 11, Windows XP, Vista, 7, and 8.

You can follow the instructions from this guide for most major manufacturer of computers: Dell, HP, Asus, Acer, Lenovo, Toshiba, Samsung, and more.

If you need to reset BIOS to default values in order to fix a boot error, also use Easy Recovery Essentials (our recovery and repair disk) Automated Repair feature that can automatically find and fix boot errors on your computer.

How to Reset BIOS

Method #1: BIOS Menu

By opening the BIOS menu and finding the Default Settings option, you can reset the BIOS directly from its menu.

To do so, follow these steps:

  • Restart your computer
  • Notice the key that you need to press at the first screen. This key opens the BIOS menu or “setup” utility. For example, here’s how this looks like on many Dell PCs:

Notice the key guide in the top-right corner.

This key is usually any of the following, depending on your computer manufacturer: Esc. Del. F2. F8. F12.

  • Find the option to reset the BIOS settings. This option is usually called any of the following:
  • Load Default
  • Load Fail-Safe Defaults
  • Load BIOS Defaults
  • Load Default Settings
  • Load Setup Default
  • Get Default Values
  • Save these changes
  • Exit BIOS
  • Method #2: Clear the jumper

    Your computer’s motherboard has a special jumper that can clear the BIOS saved settings and revert them to their original values.

    By clearing the jumper, you can also reset the password for the BIOS menu.

    To do so, follow these steps:

    • Shutdown your computer
    • Flip the power switch so that the computer receives no power.
    • Make sure you’re grounded. Static discharges can damage your computer.
    • On the motherboard, find a jumper that’s named like any of the following. (This jumper is usually placed near the CMOS battery.)
    • CLEAR
    • CLR CMOS
    • CLR PWD
  • Set the jumper to the Clear/CLR position
  • Power on and start your computer
  • Once your PC has booted, turn it back off, move the CLR jumper back to its original position. Otherwise, each time you reboot, your settings (and clock) will automatically reset!
  • Method #3: Replace the CMOS battery

    If Method #2 above doesn’t work (your computer doesn’t have the mentioned jumper), you can also try to remove and replace the CMOS battery. This method works if your computer has a CMOS battery. Not all motherboards have that battery. To reset the BIOS by replacing the CMOS battery, follow these steps instead:

    • Shutdown your computer
    • Remove the power cord to make sure that your computer receives no power.
    • Make sure you’re grounded. Static discharges can damage your computer.
    • Find the battery on your motherboard
    • Remove it. If the battery doesn’t move easily, stop following this method to reset the BIOS, go to Method #1 or Method #2.
    • Wait 5 to 10 minutes
    • Put the battery back in
    • Power on your computer


    Support Links

    • Easy Recovery Essentials for Windows – our repair and recovery disk.

    Applicable Systems

    This Windows-related knowledgebase article applies to the following operating systems:

    • Windows XP (all editions)
    • Windows Vista (all editions)
    • Windows 7 (all editions)
    • Windows 8 (all editions)
    • Windows 8.1 (all editions)
    • Windows 10 (all editions)
    • Windows 11 (all editions)

    Steps To Reset The Battery Calibration On Your Asus Laptop

    If your Asus laptop is running slowly or not holding a charge, you may need to reset the battery calibration. Battery calibration helps to ensure that your laptop’s battery is correctly reporting its charge level to the system. This can help improve performance and battery life. To reset the battery calibration on your Asus laptop, start by making sure that the laptop is plugged in and fully charged. Next, discharge the battery completely by running the laptop until it shuts down. Once the laptop is powered off, leave it unplugged for at least two hours. After two hours have passed, plug the laptop back in and turn it on. Allow the laptop to charge until it reaches 100%. Once the laptop is fully charged, unplug it and use it until the battery is completely drained. Repeat this process two more times. After you have completed the calibration process, your laptop’s battery should be more accurate in reporting its charge level.

    All that matters is the accuracy of the battery life readings when calibration is performed. There is no improvement in battery life as a result of using this. You should always maintain the same settings on your laptop. Wear and tear are what determine calibration, and they are a reflection of how many times a device has been used. Most manufacturers recommend that the battery be calibrated every two to three months. When a battery is calibrated, the power setting is reset. Some laptop batteries do not have the ability to replace all cells (unless they are replaced). In some cases, they can be reconditioned or calibrated to improve performance.

    This is true. The factory reset procedure entails returning your Android or iOS device to its factory settings, which means it will return to its original state as soon as you open it.

    How Do I Reset My Battery Calibration On My Laptop?

    Credit: Downloadcrew

    Simply let the battery run out of power for a few minutes to allow it to completely recover, then charge it back to full capacity. The battery power meter will measure how long the battery is on the market and how much capacity it has left, allowing for a much more accurate measurement of its life.

    In most laptops, BIOS settings are configured to allow for the generation of an in-built battery calibration. This can be performed on your laptop if it does not have a BIOS or if you are unable to access it due to an issue. Please see the following sections for more information on how to calibrate your laptop’s battery. To achieve the critical battery level, you should set it to 5%. All of your apps must be closed and all updates must be completed. In this case, you will be prompted to hibernate your computer. The power to your laptop must be disconnected, and the battery must drain before it can be turned off. After a while, plug the cord back in and charge to 100%.

    Battery Calibration Laptop Software

    Credit: Weebly

    Most laptop batteries come with some level of calibration software built in, but there are also a number of independent battery calibration software packages available. This type of software is designed to help improve the overall performance and longevity of your laptop battery by optimizing the way it charges and discharges. In general, you should calibrate your laptop battery at least once every few months.

    Free download suggestions for laptop battery calibration software. Your battery should be monitored to ensure that it has enough energy to last as long as possible and to save energy. You will be able to perform better on your PC if you update the BIOS, drivers, and applications. In this case, your battery is yours. This program provides you with the ability to configure and control your Phantom 2 Vision device.

    Asus Battery Driver

    Asus battery drivers help to optimize battery performance on Asus laptops and other devices. They can be downloaded for free from the Asus website. Asus battery drivers can improve battery life by up to 30% and also help to improve charging times.

    How can I reset the Asus battery drivers on my laptop? Simply type msc into Device Manager and then click OK. When prompted, click Uninstall device to uninstall your device. After you restart your laptop, you will be able to reinstall the driver. Corrupted laptop drivers can cause a battery charge to fail. The battery device should be selected under Battery in Device Manager, and the driver should be selected in the menu if it is available. After you restart your laptop, you will be able to reinstall the driver. Because all personal data and software on your computer will be erased when Windows is reset to factory settings, you must back up all files on your computer.

    Why Does Myasus Laptop Say No Battery Detected?

    Corrupted battery drivers are most likely to blame for the “No battery is detected” problem. If you are experiencing this problem, restarting or reinstalling the battery drivers is an option.

    steps, reset, battery, calibration, your

    How To Update Battery Drivers On Your Compute

    You can update your computer’s battery drivers by following a few simple steps. If you want to manually update the driver, follow these steps: You can first select the Device Manager option by pressing Windows X keys simultaneously while also selecting the Device Manager option from the menu. When you select and expand the Battery category in Device Manager, you must first find it. Click the Update driver option in the pop-up menu next to the Microsoft AC Adapter, then right-click it. If the driver is not currently available, you can uninstall it first and reinstall it later. By right-clicking the Microsoft AC Adapter and selecting the Uninstall driver option from the pop-up menu, you can proceed with the installation process. Restart your computer and follow the on-screen instructions as soon as possible.

    Lenovo Battery Calibration BIOS

    There is not currently a lot of information available on Lenovo Battery Calibration BIOS. However, it is possible that this feature is used to improve the accuracy of the battery life indicator on Lenovo laptops. By calibrating the BIOS, it is possible to more accurately estimate how much power the battery has remaining. This could be useful for users who want to make sure they have enough power to finish a task before needing to recharge their laptop.

    What is the best way to calibrate my laptop battery? calibrates the battery in between 6 and 8 hours It is possible to calibrate your battery by allowing it to run completely from full charge all the way down to almost-dead before charging it again. Most manufacturers recommend that the battery be calibrated every two to three months. It is recommended that your phone’s battery be re-calibrated every two to three months. The calibration of a battery is affected by wear and tear, and it is a reflection of how much it has been used. To calibrate the battery, the charge must be 100% and the battery must be drained to zero before it can be used.

    Battery Calibrate

    A battery calibration is when you reset your device’s battery statistics, which is supposed to help improve battery life. This can be done by discharging your battery all the way down to 0%, then charging it back up to 100%.

    It is not possible to determine at any given time how much energy a battery holds. The battery management system’s calibration system ensures that estimates are accurate by setting new full discharge and full charge anchors. When a Smart battery is low, it should be calibrated on a regular basis by running the battery down in the device until it reaches 100% accuracy. Calibration is accomplished by applying a full charge, discharge, and charge. This is done in equipment or with a battery analyzer as part of battery maintenance. This state-of-charge estimation is possible as a result of a linear line between these two anchor points. This line becomes blurred over time, necessitating the use of a new battery.

    Software can claim to have a battery charge of nearly zero if the battery’s chemical state is less than 10%. By doing so, this ensures that the battery never goes below a safe level. Apple seems to have removed the battery calibration procedure from its support site.

    If you are concerned about how long your device will last, you must calibrate your Android battery. This can be accomplished in a variety of ways, but it has no effect on the battery itself. The additional benefit is that it keeps your Android operating system up to date, which is critical for its smooth operation.

    Calibrating Your Battery: Why And How

    When you calibrate your battery, you are simply stating to your Android OS that it is at a certain level and should be treated as such. The software can then correct any inaccuracies in the OS’s battery estimation, resulting in a more accurate estimate of the battery’s remaining power.

    Jessie is a computer specialist and a technology geek, He has an exceptional experience is programming and analyzing any new technology entering the market.

    Ctrl. blog

    Many recent laptop models from Lenovo ship with a software called OneKey Optimizer ( OKO ) pre-installed that offers system maintenance, settings optimizations, and battery management. But does it give good advice?

    OneKey Optimizer is available for Windows 7, 8, and 8.1. You shouldn’t have any trouble running it on Windows 10, but it’s officially unsupported. This review is split into sections that match the primary tabs of OKO ’s user interface. Each section will get increasingly technical towards the end of the section.

    Checkup (introduction)

    OneKey Optimizer presents itself as an easy-to-use one-stop optimization and maintenance solution for Windows. The program’s main window is the Checkup view that runs through a set of tests and checks to see whether it can free up disk space or “optimize” any settings. You can perform one task at a time or choose to ignore a task forever by clicking it. I’ll cover these optimizations and cleanup suggestions in greater detail later.

    One of the problems with this kind of software is that they’re desperate to find something “wrong” with your system. If they fail to identify faults with your system, they’re not useful. So, they’re incentivized to exaggerate any potential problem and put up a big theater about how your system performs poorly or is filled with “junk” files. OneKey Optimizer is no exception to this troublesome practice.

    The main tabs of the user interface duplicates the information provided in the Checkup tab. Items you may have chosen to ignore before will still be listed under these tabs so you can restore them to the main Checkup list if you later change your mind. You can’t add anything to the ignore list from any tab other than the Checkup tab. There’s also some useful extra information spread in the tabs that you can’t see in the overview list hidden amongst the other tabs.

    Save power

    OneKey Optimizer ships with a small battery manager that lives on your taskbar. By default, it will duplicate the system’s battery icon. Either turn off the system’s battery icon by opening Start and search for “Select which icons appear on the taskbar” and unchecking the Power icon, or turn off OneKey’s battery manager by right-clicking the taskbar and unchecking Toolbars: OneKey Optimizer.

    The battery manager lets you select between two battery modes and three power plans. In normal mode, the battery will charge 100 % and keep the battery fully charged at all times. Conservation mode is the best option if you usually leave your laptop plugged in to the charger at all times. It will keep the battery at a 50–60 % charge which is better for the battery chemistry and its longevity.

    You can still change it into Normal mode an hour before you intend to disconnect the laptop but this requires some planning compared to always leaving it in Normal mode. Explaining battery chemistry is beyond the scope of this article, but head over to Battery University for details.

    Update ( 2017-01 ): The battery calibration feature has been removed from the OneKey Optimizer program after the article was originally published.

    Changing the power plan just changes the underlying power plan in Windows, but the OneKey battery manager puts these plans in a convenient and easy to access location. In Windows 10 you can quickly switch between power modes by clicking on the built-in battery icon; making the OneKey Optimizer’s battery manager essentially useless except for battery calibration prompts.

    The OneKey battery manager will periodically prompt you to calibrate your laptop’s battery. This process involves fully charging the battery, letting it fully deplete, and then fully recharge it again. The process takes several hours, requires the laptop to be plugged in at all times, and shouldn’t be interrupted. This is the recommended procedure for all lithium-based batteries (including your phone and other devices), although there’s great disagreement about how often this should be performed.

    OKO will prompt you every 60 days. You can perform this manually by letting your battery charge and discharge as described above by unplugging the charger and disabling Sleep mode in Windows. Remembering to do it without the notification prompts can be more challenging.

    You can trigger an out-of-cycle battery calibration by opening the Save Power: Battery Conservation tab in OneKey Optimizer and clicking on the Calibrate button. From the same tab, you can also put the battery into sleep mode if the computer isn’t to be used for some months. This essentially puts the battery in a state optimal for long-term storage, and is similar to the same state your Lenovo laptop was in when it arrived from the factory.

    Clean (maintenance)

    Software designed to make decisions about when and what to “clean” leaves a lot to be desired. Allowing one of these programs to run on your system is like cleaning your apartment by laying out all your possessions out in front of a rampaging rhinoceros. OneKey Optimizer is no exception. It doesn’t take into consideration whether your usage patterns indicate that you use any of the data that it’s only too eager to delete.

    OneKey Optimizer classifies “junk to be cleaned out” in three main categories: Computer usage reports, Redundant system registry, and Computer’s junk files. I’ll go through each of them in turn:

    Why would you want to make it more difficult to find your way back to documents and websites you’ve previously opened? Some users want to remove all traces of their own personal computers being used for anything, but I find the locally stored history of opened files and websites very useful. Clearing out my logbooks isn’t cleaning, it’s destroying valuable user data.

    These recommendations are dangerous. Making changes all over the system registry and blindly removing apparently unused or unassociated keys is a recipe for disaster. Unless you’re comfortable with creating and using system restore points, you should not be messing around with this. This can break your system or the software that runs on it.

    I don’t know exactly which parameters OneKey Optimizer uses to determine what to remove from the registry or not. Tracking the changes made to the registry before and after letting OneKey “clean” it revealed an 84% false-positive rate! These are keys that were actively used by installed software and that shouldn’t have been removed.

    competent registry editors will present lists of key it thinks might be beneficial to remove along with data used to determine whether an item should be removed or not. For example, a registry optimizer may suggest you remove “unused keys” from Software X. Only you as the user can say for certain whether Software X is something you still have installed and use and thus determine whether to remove it or not. An automated software simply can’t make this decision on its own. This applies to any registry cleaner software, not just OKO.

    • Computer’s junk files
    • Internet junk files
    • Video and music junk files
    • Windows system junk files
    • User’s temp junk files
    • Download folder junk files
    • Recycle bin junk files

    Removing many of these items may make your computer slower at performing everyday tasks. Clearing out the recycle bin is the only thing that wouldn’t have negative effects. Temporary internet files are things like logos and other frequently accessed files from your favorite websites. If they don’t have copies stored on your computer, you’ve to download them again from the website’s servers, which will be slower than just having a copy on your local machine.

    Video and music “junk” makes Windows Media Player, the File Explorer, and other programs capable of displaying album arts for your favorite songs or instantly start playing previews of your video and audio files. Windows is best left managing these things on its own unless you desperately need disk space, at which point, Windows itself will have started trimming these things down for you already. Running Windows’ built-in Disk Cleanup utility gets this job done just as well and leaves your Downloads alone.

    Deleting everything in your Downloads folder in one go without reviewing what’s inside first sounds like a bad idea. Did you make a copy of that receipt? Did you move those songs over to the Music folder or not? Is your only copy of that contract lying in your Downloads folder? As with unceremoniously declaring your computer’s log files “junk”; deleting your entire Downloads folder in one go without checking its contents is living too dangerously for my taste.

    Some users probably never give the files in there a second look and will be pleased to have it “cleaned up” for them. I believe Lenovo maybe should have implemented a more granular approach where they only delete files that have stayed in the folder untouched for two months or another similar indicator.


    The fourth tab in OneKey Optimizer contains recommended setting adjustments, or “accelerations” as Lenovo calls them. As with any program claiming to “optimize” your computer, you shouldn’t accept everything it wants to do to your system without understanding what it does. The changes it wants to apply are quite advanced and can have bad consequences if you don’t understand them fully. The rest of this section will help you to make decisions about some of the specific optimizations that Lenovo recommend you put your system through.

    Below is the full list of the accelerators offered by OneKey Optimizer and my investigation of what changes it does on the system:

    • “Optimize the memory configuration. This setting can accelerate software (such as games.)” This only changes its own checkbox in OneKey Optimizer. It doesn’t affect the system whatsoever.
    • “Improve the response speed of the foreground apps.” Actually slightly improves the speed of external programs opened from within other programs. Better left untouched.
    • “Optimize the boot partition. This setting can speed up the boot process.” I can find no evidence that this does anything.
    • “Optimize hard drive storage. This setting can improve software startup speeds.” Performs disk defragmentation. Windows 8 and newer performs this automatically once a week already.
    • “Close the automatic debugging function. This setting can improve the speed of system operations.” Makes program start slightly faster at the expense of not being able to collect error reports properly. See the next item.
    • “Ban automatically generated error reporting. This setting can improve system response time.” Makes programs crash and restart faster. However, as you’re not generating error reports, Microsoft will never know about the problem and issue software fixes. Only disable this on slow and underpowered systems.
    • “Optimize hard drive access. This setting can increase the hard drive’s read/write performance.” This setting just reduces the time before automatically running an integrity check on hard drives after an unexpected system shutdown. The system is indeed likely to have better performance following an unexpected system shutdown assuming this automatic but time-consuming check is allowed to run. Claiming it will “increase hard drive performance” overall is a bit of an overstatement.
    • “Optimize system icon caches. This setting can speed up the boot process.” Caches 2 MiB of icons instead of the default 0.5 MiB. This will speed up your system start-up time at the expense of a slower shut-down time.
    • “Ban automatic play on USB drives, etc. This setting can prevent virus infection.” Prevents removable media from automatically running programs when they’re connected. AutoPlay settings can be adjusted from PC Settings, which is probably better because you get to see what you’re changing.
    • “Optimize hard drive access speed. This setting can reduce unnecessary and frequent hard drive read/write operations.” Disables write-safety features designed to prevent dataloss in the case of a powerloss or system crash. It also shifts the system’s assumptions from “all disks may be slow” to “all disks are always fast”.
    • “Increase the IE link count.” Sets the number of simultaneous open network connections Internet Explorer can make to the same server to ten. This was needed on Internet Explorer versions before 8, but is now entirely meaningless. Will potentially cause more harm than good. “Link count” is likely a poor translation of “connection count” from an Asian language.
    • “Close the IE system updates.” Disables auto-update checks in Internet Explorer. These checks are already moved into Windows Update so this change will make no difference whatsoever.
    • “Optimize network card performance. This setting can improve network efficiency.” Resets some default values for TCP/IP Window Scaling. Unless another software has crazily taken upon itself to disable the Windows defaults, this should be entirely unnecessary.

    There are also two advanced acceleration options, but they’re only available in certain hardware configurations which I don’t have access to for testing.

    steps, reset, battery, calibration, your
    • “This function accelerates the boot speed, making your computer start up faster; however, it consumes more memory.”
    • “This function quick starts programs, reduces hard drive mechanical loss, and prolongs the computer’s life; however, it consumes more memory.”

    Under the Accelerate tab: Startup process, you will find information about the start-up performance delays caused by each program in seconds and milliseconds. This can be very useful information when deciding whether you need that process to start along with your computer or whether it’s not worth it. Once again, Windows already provides this information in Task Manager: Startup. You should not remove any of these processes unless you know what they do and know that you wouldn’t need their services. If you recognize a program you no longer use, uninstall that program entirely from your computer instead of just disabling it.


    The last tab in OneKey Optimizer’s user interface is the update tab. It checks in with Lenovo to retrieve new firmware, device drivers, and app updates. Driver updates are already delivered through Windows Update, and app updates come in through the Windows Store. The only things the update tab provides is new firmware updates and updates to itself.

    I’ve used the Lenovo Yoga 3 Pro for five months. There have been two firmware updates available since I got this laptop. However, I’ve yet to receive any firmware updates through OneKey Optimizer, and have had to dig them up manually from Lenovo’s support website. So, from my experiences, it would seem OKO only updates itself through the Update check.


    You don’t need optimization software on a modern computer and you don’t need OneKey Optimizer. If there were any good optimizations for settings that applied to everyone, Microsoft would make those settings the default in Windows. OneKey will in many cases just “adjust” settings to whatever is already the default in Windows. However, when used as a good battery management software it can help prolong the life and resale value of your laptop.

    The big problem with OneKey Optimizer is that it has no reason to exist. It doesn’t optimize anything, leaving me wondering why Lenovo even bothered pre-installing it on their laptops. It looks impressive when you first open it, but when you look closer you quickly realize that its accelerations are vapor and its cleanup routines are mostly destructive.

    I expected to like OneKey Optimizer, but the closer I looked, the more I realized that it was a poorly engineered solution in search of a problem that doesn’t exist. The accelerations would have been invaluable in Windows ME or XP, but add no value to today’s modern operating systems. You may want to keep OneKey Optimizer installed on your system to remind you to perform battery calibration or have quick-access to change battery plans, but other than that … stay well clear of it.

    OneKey Optimizer comes pre-installed on a selection of laptops from Lenovo including the Lenovo Yoga 3 1170 and 3 Pro 1370, Z70-80, and others. OKO can be installed on any PC running Windows even from other manufacturers and PC towers. Users should avoid using OKO for battery calibration or management on PCs from other manufacturers as the app can’t communicate properly with batteries from other manufacturers and you risk damaging the battery.

    This review looked at OneKey Optimizer version as made available on Lenovo’s website, on a Lenovo Yoga 3 Pro running Windows 8.1 Professional and Windows 10 Professional.

    Trivia: The OneKey Optimizer is installed in some regions under the name “One Key Optimiser”, and referred to internally by Lenovo as “OKO”. OKO has been built into the “Lenovo Companion” app, available from the Windows Store on Windows 10.

    Ways To Calibrate Laptop Battery in Windows 10

    Many of us use laptops for hours at a stretch, every single day. With constant wear and tear, your laptop battery is bound to weaken over a period. And, one of the evident signs that your laptop’s battery has become weak is when you start to see differences in the percentage of battery your laptop is showing and the actual amount of time it lasts.

    For example, your laptop’s battery might show a good 75% (which means your laptop could last for at least 2 hours) but, surprisingly, it quickly drops down to 10%, and soon your laptop shuts off. The same happens, not just once, but every single time.

    This is where you need to take matters into your own hands and calibrate your laptop’s battery. So, in this blog, we are going to look at ways you can calibrate Windows 10 laptop’s battery and finally, look at accurate battery readings on your laptop.

    How To Execute Battery Calibration in Windows 10 Laptop?

    Here we’ll discuss three ways, you can calibrate laptop battery in Windows 10 –

    • Manually Calibrating Laptop Battery in Windows 10
    • Using the BIOS to Perform Windows 10 Battery Calibration
    • Use a Third-Party Tool To Calibrate Battery in Windows 10

    Manually Calibrating Laptop Battery in Windows 10

    Before charging and discharging your laptop, you must make certain changes to your laptop’s power plan so that it doesn’t hibernate or sleep early.

    Right-click on the battery icon that you can find on your Taskbar

    Click on Power Options

    Next, click on Change when the computer sleeps

    Locate the Turn off the display and select Never

    Click on the dropdown button next to Put the computer to sleep and then again choose Never

    Select Change advanced power settings and then next to the Battery click on the expand button

    Similarly, click on the Expand button next to the Critical battery action

    Make sure that you have selected Hibernate in the section next to On battery

    Click on the Expand button next to Critical battery level

    Click on the percentage against the On battery option and set it to as low as possible

    Click on Apply and then OK

    Click on Save Changes

    After making changes in the Power Plan, charge your laptop’s battery to the fullest (i.e. 100%). Once your laptop’s battery is completely charged, leave the charger plugged in and leave it for a few minutes or few hours till the battery cools down.

    Unplug the charger from your laptop and completely discharge its battery. Meanwhile, you can use your laptop, just make sure to not let your laptop go into a sleeping or hibernate mode and let the battery discharge completely.

    Again replug your charger and charge your laptop to 100%. At this point, you can use your laptop. You would now see that your laptop is giving you a much more accurate reading.

    If you were able to calibrate your Windows 10 laptop battery satisfactorily, you can reset your power settings like they were before, else you can move on to the next step.

    Using The Laptop’s BIOS For Windows 10 Battery Calibration

    Several laptop models allow users to use the battery calibration tool which is present in the BIOS (you can use it if you are comfortable using the BIOS). Some manufacturers let users calibrate laptop batteries in Windows 10 using the laptop itself, which means you needn’t get into the BIOS settings.

    Let’s see how you can use the laptop’s BIOS to calibrate the laptop battery in Windows 10 –

    Press the F2 key when your laptop boots

    Once in BIOS settings, using the arrow keys select the Power tab

    steps, reset, battery, calibration, your

    Navigate to the Start Battery Calibration and hit the Enter key

    Follow the commands that appear on-screen

    Now, plug in your laptop’s charger and let it charge to 100%

    Once your laptop’s battery reaches 100% unplug the charger

    Completely drain your battery from 100% to 0% and let it power off now

    Replug your charger but remember not to boot it

    Let it charge to 100%. Once that’s done, you have successfully calibrated your Windows 10 laptop’s battery

    Unplug your charger and then reboot your laptop

    Use A Third-Party Tool To Calibrate Windows 10 Laptop’s Battery

    In case you want to save yourself from the hassle of making manual changes in settings and calibrating your laptop’s battery, you can take the help of dedicated third-party software instead. These tools can also save you from making any wrong modifications in your settings that you might regret later.

    iolo System Mechanic is one such utility. Although it is a powerful Windows optimization tool, it has some effective power/ energy management features that can help you increase both the lifespan and performance of your laptop’s battery.

    To be more precise, iolo System Mechanic’s PowerSense Mode detects when you have switched your laptop to battery power. It then engages the battery saver mode automatically after your laptop stays idle as per your desired timeframe. The power settings present in Endurance mode stay in effect till you either plug in your charger or choose a different power sense mode.

    What Does Endurance Mode Within PowerSense Mode Does To Extend Battery?

    • It decreases screen brightness by 40%
    • Most processor cores are parked
    • Calibrates processor speed to 25 % of maximum
    • Decreases total hard drive spins

    Download iolo System Mechanic

    Wrapping Up

    We hope that the above methods have helped you calibrate your Windows 10 laptop and you are now able to see correct battery readings on your laptop. For more such content, keep reading Tweak Library. You can also find us on. Instagram Flipboard, and Tumblr. into videos on how-to’s, troubleshooting guides, and other tech stuff? You can like, share and subscribe to our YouTube channel.

    How to Increase Laptop Battery Life

    Even the longest-lasting laptop batteries will die eventually. Here’s everything you need to know to maximize the amount of time between visits to the power outlet.

    I’m the deputy managing editor of the hardware team at PCMag.com. Reading this during the day? Then you’ve caught me testing gear and editing reviews of laptops, desktop PCs, and tons of other personal tech. (Reading this at night? Then I’m probably dreaming about all those cool products.) I’ve covered the consumer tech world as an editor, reporter, and analyst since 2015.

    (Credit: Bob Al-Greene)

    Who wants to make an urgent dash to a power outlet to rescue their laptop battery? That’s no fun, especially if your family is working and learning from home these days in various corners of the house that may not have a convenient socket nearby. Luckily, modern laptops are much more efficient than their predecessors. Nowadays, even inexpensive desktop-replacement laptops and some gaming behemoths can last for more than eight hours on a single charge. Ultraportable laptops often endure for 14 hours or more.

    Still, the inconvenient truth is that the battery in your PC or Mac laptop won’t last as long as the manufacturer advertises unless you pay attention to some key factors: your power settings, how many apps you’re running, even the temperature of the room in which you’re working. The good news is that none of this requires much effort to sort out, once you know which settings to adjust. Let’s take a look at the highest-yield, least-effort ways to get the most out of your laptop’s battery.

    If You’re on a PC, Use the Windows Performance Management Tool

    The first stop on our battery-life betterment tour is your laptop’s performance management tool. In Windows 10, it’s a slider accessed from the battery icon in the task bar. It aims to group all of the settings that affect battery life into a few easy-to-understand categories.

    In Windows 11, you’ll find it in Settings System Power Battery Power Mode.

    The company that made your PC determines exactly which settings the battery slider controls. But in general, keep these guidelines in mind:

    • The Best Performance mode is for people willing to trade off battery runtime to gain speed and responsiveness. In this mode, Windows won’t stop apps running in the background from consuming a lot of power.
    • The Better Performance (or Recommended) mode limits resources for background apps, but it otherwise prioritizes power over efficiency.
    • The Better Battery mode delivers longer battery life than the default settings on previous versions of Windows.
    • The Battery Saver mode, a slider choice that will appear only when your PC is unplugged, reduces the display brightness by 30%, prevents Windows Update downloads, stops the Mail app from syncing, and suspends most background apps.

    If You’re on a Mac, Use macOS Battery Settings

    Recent Mac laptops have extensive battery and power settings that you can control. In macOS Monterey or later, open the System Preferences app and click on Battery.

    Make sure that Slightly dim the display while on battery power is checked, and Enable Power Nap while on battery power is unchecked. (With Power Nap enabled and your MacBook asleep, the machine will wake up now and then to check for updates. Disabling it keeps your MacBook fully asleep until you choose to wake it up.) On recent MacBook Pro laptops, the display brightness adjusts to 75% when you unplug the computer from power if you have Slightly dim the display while on battery power enabled.

    Depending on which laptop and which version of macOS you have, you may see additional options in the Energy Saver preferences pane. These include Optimize video streaming while on battery for disabling HDR video playback and Optimized battery charging. Some Macs also have an Energy Mode setting, which is similar to the Windows performance management tool described above. If you see Energy Mode in the Battery section of system preferences, you’ve got the following options:

    • Low Power: Reduce energy usage to increase battery life.
    • Automatic: Have your Mac automatically use the best performance level.
    • High Power: Increase energy usage to improve performance during sustained workloads.
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    Simplify Your Workflow: Close Apps, and Use Airplane Mode

    If you spend lots of time working off the plug, it’s a good habit to adjust your laptop use in more battery-conserving ways, such as by sticking to one app at a time and closing everything else when you’re not using it. It’s a bit like turning off the lights when a room is vacant. If you’re going back and forth between the kitchen and the pantry all the time, or between Firefox and Microsoft Word, by all means keep both sets of lights (and apps) on (and open). But if you’re just cooking, or just watching a YouTube video, you’ll be best served by turning off and closing everything else.

    In addition to shutting down other programs while you single-task, consider enabling Airplane mode in Windows, or turning off Wi-Fi and Bluetooth in macOS, if you know you’ll be editing a document with no need for web access. In addition to reducing distractions, Airplane mode eliminates a significant source of battery drain: not only the wireless radios themselves, but also the background apps and processes that constantly use them, such as updaters and push notifications.

    Close Specific Apps That Draw Lots of Power

    Having multiple apps and processes running on your system at the same time will chew through battery life more quickly, and chances are you probably aren’t actively using everything that’s currently running on your PC. In Windows, the Settings app is the first step to find energy-hogging programs.

    Type See which apps are affecting your battery life into the Windows 10 search bar for a list of apps that are consuming the most power. In Windows 11, you can access this list in the Power Battery settings pane under Battery Usage. If you see an app that you rarely use hogging a lot of power, make sure you close it. Often, these are apps you’ve opened in the background and forgotten about, such as Spotify or Adobe Reader.

    Next, type See which processes start up automatically when you start Windows into the search bar, or open the Task Manager app. In the Startup tab, you’ll see every utility that runs as soon as you start your PC. Anything with a name like Download Assistant or Helper is usually safe to disable. For example, unless you frequently open Spotify playlists, tracks, or albums from links in a web browser, you can disable the Spotify Web Helper.

    To perform similar app purges in macOS, search for Users Groups, then click the Login Items tab, where you’ll find a list of apps that are designated to run in the background when you start up your Mac.

    Adjust Graphics and Display Settings to Conserve Power Usage

    If you have a powerful graphics processor (a discrete GPU) in your laptop, you can ensure that only games or other graphics-intensive apps need to use it, while everything else can get by using the more efficient on-CPU silicon for graphics processing. In Windows 11, go to Settings System Display Graphics, where you can adjust which graphics processor each app uses, or let Windows automatically decide which one is best. This option may not be available on all Windows 11 laptops with dedicated GPUs.

    To perform a similar assignment on a Mac, open the same Battery preferences pane mentioned earlier and make sure the Automatic graphics switching option is checked, as in the screenshot below from macOS Big Sur. You don’t have the same kind of fine-tuned control over each program like you do in Windows 11, so you’ll have to trust macOS’s judgment when it comes to which app should use which graphics accelerator.

    Optimize the Airflow Into and Out of Your Laptop

    Most laptops now come with lithium-polymer batteries that require much less maintenance than batteries of a decade ago, thanks as much to software and firmware improvements as innovation in the battery technology itself. You no longer have to perform a full battery discharge on a regular basis to calibrate it, nor do you have to worry that draining the battery completely will damage your laptop.

    You do have to be careful about heat, however, which will hasten a battery’s demise. The biggest problems come from physical obstruction of the ventilation ports and grilles. Dust buildup is one problem, which you can take care of by cleaning the laptop’s vents and fan. (Periodically, use a can of compressed air to blow out some of the dust.) A more frequent issue that crops up, though, is using the laptop on a pillow or blanket, which can both obstruct the internal fan or fans and retain the heat coming off of the system. Avoid this by using your laptop only on firm surfaces such as a table or a desk, which won’t flex and block airflow or cooling.

    Monitor Your Battery’s Health From Within the Operating System

    All batteries lose charging capacity over time and will eventually need to be replaced. Taking stock of a battery’s health now and then is always a good idea.

    On an Apple MacBook laptop, to see if your battery is nearing the end of its lifespan, hold the Option key and click the battery icon in the menu bar to reveal the battery status. If you see a Replace Now or Service Battery message, your battery is likely functioning far below its original capacity.

    You can find more detailed information on how many charging cycles your battery has endured by opening the System Information app and navigating to the Power tab. Check the cycle count value against the rated maximums in Apple’s list (Opens in a new window) to know how many more cycles you’ve got left.

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