![Windows 10 Battery Warning Windows 10 Battery Warning](/uploads/1/2/3/7/123714846/945422659.jpg)
So you’re using your laptop and, all of the sudden, it dies. There was no battery warning from Windows—in fact, you recently checked and Windows said you had 30% battery power left. What’s going on?
Even if you treat your laptop’s battery properly, its capacity will decrease over time. Its built-in power meter estimates how much juice available and how much time on battery you have left—but it can sometimes give you incorrect estimates.
This basic technique will work in Windows 10, 8, 7, Vista. Really, it will work for any device with a battery, including older MacBooks. It may not be necessary on some newer devices, however.
Why Calibrating the Battery Is Necessary
RELATED:Debunking Battery Life Myths for Mobile Phones, Tablets, and Laptops
If you’re taking proper care of your laptop’s battery, you should be allowing it to discharge somewhat before plugging it back in and topping it off. You shouldn’t be allowing your laptop’s battery to die completely each time you use it, or even get extremely low. Performing regular top-ups will extend your battery’s life.
However, this sort of behavior can confuse the laptop’s battery meter. No matter how well you take care of the battery, its capacity will still decrease as a result of unavoidable factors like typical usage, age, and heat. If the battery isn’t allowed to run from 100% down to 0% occasionally, the battery’s power meter won’t know how much juice is actually in the battery. That means your laptop may think it’s at 30% capacity when it’s really at 1%—and then it shuts down unexpectedly.
Calibrating the battery won’t give you longer battery life, but it will give you more accurate estimates of how much battery power your device has left.
How Often Should You Calibrate the Battery?
What happened to monday 123movies. Manufacturers that do recommend calibration often calibrating the battery every two to three months. This helps keep your battery readings accurate.
In reality, you likely don’t have to do this that often if you’re not too worried about your laptop’s battery readings being completely precise. However, if you don’t calibrate your battery regularly, you may eventually find your laptop suddenly dying on you when you’re using it—without any prior warnings. When this happens, it’s definitely time to calibrate the battery.
Some modern devices may not require battery calibration at all. For example, Apple recommends battery calibration for older Macs with user-replaceable batteries, but says it’s not required for modern portable Macs with built-in batteries. Check your device manufacturer’s documentation to learn whether battery calibration is necessary on your device or not.
Basic Calibration Instructions
Recalibrating your battery is simple: just let the battery run from 100% capacity straight down to almost dead, and then charging it back to full. The battery’s power meter will see how long the battery actually lasts and get a much more accurate idea of how much capacity the battery has left.
Some laptop manufacturers include utilities that will calibrate the battery for you. These tools will usually just make sure your laptop has a full battery, disable power management settings, and allow the battery to run to empty so the battery’s internal circuitry can get an idea of how long the battery lasts. Check your laptop manufacturer’s website for information on using any utilities they provide.
You should also look at your laptop’s manual or help files. Each manufacturer may recommend a slightly different calibration procedure or tool to ensure your laptop’s battery is properly calibrated. Some manufacturers may even say this isn’t necessary on their hardware (like Apple). However, there’s no harm to performing a calibration, even if the manufacturer says it isn’t necessary. It just takes some of your time. The calibration process essentially runs the battery through a full discharge and recharge cycle.
How to Manually Calibrate a Battery
While it’s a good idea to use any included utilities or just follow instructions specific to your laptop, you can also perform battery calibration without any specialized tools. The basic process is simple:
- Charge your laptop’s battery to full—that’s 100%.
- Let the battery rest for at least two hours, leaving the computer plugged in. This will ensure that the battery is cool and not still hot from the charging process. You’re free to use your computer normally while it’s plugged in, but be sure it doesn’t get too hot. You want it to cool down.
- Go into your computer’s power management settings and set it to automatically hibernate at 5% battery. To find these options, head to Control Panel > Hardware and Sound > Power Options > Change plan settings > Change advanced power settings. Look under the “Battery” category for the “Critical battery action” and “Critical battery level” options. (If you can’t set it to 5%, just set it as low as you can—for example, on one of our PCs, we couldn’t set these options below 7% battery.)
- Pull the power plug and leave your laptop running and discharging until it automatically hibernates. You can keep using your computer normally while this happens.
NOTE: If you want to calibrate the battery while you aren’t using the computer, be sure your computer isn’t set to automatically sleep, hibernate, or turn its display off while idle. If your computer automatically enters power-saving mode while you’re away, it will save power and won’t discharge properly. To find these options, head to Control Panel > Hardware and Sound > Power Options > Change plan settings.
- Allow your computer to sit for five hours or so after it automatically hibernates or shuts down.
- Plug your computer back into the outlet and charge it all the way back up to 100%. You can keep using your computer normally while it charges.
- Ensure any power management settings are set to their normal values. For example, you probably want your computer to automatically power off the display and then go to sleep when you’re not using it to save battery power. You can change these settings while the computer charges.
Windows 10 Battery Warning Icon
Your laptop should now be reporting a more accurate amount of battery life, sparing you any surprise shutdowns and giving you a better idea of how much battery power you have at any given time.
The key to calibration is allowing the battery to run from 100% to almost empty, then charging it all the way up to 100% again, which may not happen in normal use. Once you’ve gone through this full charge cycle, the battery will know how much juice it has and report more accurate readings.
Image Credit: Intel Free Press on Flickr
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My desktop computer shows my battery is low at login. Of course it has no battery. I have to hit F1 to continue, any way to stop this?
![Warning Warning](/uploads/1/2/3/7/123714846/290159144.jpg)
- it could be the battery on the motherboard. :)
- This just happened to me.I actually took one from a broken computer and replaced the one in the functional (but very old) computer that was messaging me. It worked just fine. That old Box was good for something.Gave me an idea and I scavenged several other parts which will be stored in a box similar to all the screws and nails I have in a can in the Garage. I am going to save the box for the time when I can actually build a PC from parts..Hope someone smiles about that..
- The CMOS battery stores the settings in the BIOS that are adjustable. When
the battery can't do that job any more those adjustable settings (CMOS) fall
back to the defaults. The default date and time are when the version of the BIOS
included in your motherboard was written. So, changing the battery may now allow the settings to be retainedHow to replace the CMOS battery
http://www.computerhope.com/issues/ch000239.htmto verify if the cmos is retaining user entry data, is to modify it.
For example, disable com port 1. Save this change in the bios setup.
Unplug the PC for about 10 minutes or more from the AC outlet on the wall.
Plug it back in, turn on the PC, and immediately enter the bios setup and
verify if the change was retained.When CMOS is going old then pc will experience Slow Programs and Hard Disk Space Problem, the computer starts alerting you to clean up your hard drive for space when you hard drive is quite free.Have you installed any software like battery monitoring?check the voltages coming out of the powersupply - Boy, we get some nonsense answers sometimes.Rob - yes, your desktop computer does actually have a little battery inside of it, called a CMOS battery, which used to keep the motherboard clock ticking. You may not notice this in Windows as modern OSes actually get their time from the internet.It's relatively easy to change, just open up the case and find the battery on your motherboard. It's a CR15 type, they're very cheap to buy and replace from any pc supply store, or maybe even a camera shop. Just be careful to unplug the power first, and dont touch anything not related. You should be able to flip out the battery with a knife or sharp screwdriver.
- Do you mean answers or questions? If it is answers, explain please
- Hello, As you have been told already, chances are it is your CMOS battery that needs changing. There are other things you can check too. This warning is common on Dell computers. Have you checked the power plan for your computer recently? If your power plan is set to mobile instead of desktop, it could cause that warning:For Windows XP:
-- click on start
-- Control Panel
-- select Performance and Maintenance
-- select Power options
-- under Power schemes, click on down arrow and choose Home/Office Desk.
-- click on ok and then okYou'll still find pockets of Catholicism and Protestantism, some Lovecraft-style Occultists and Pagans, a huge swath of Evangelicals in the south, naturally, and there are some heretical groups as well. We certainly don't seem to be in any danger of that at the present.Just because the game takes place in North America doesn't mean there isn't an entire world out there, slowly rebuilding, expanding, and threatening to impose itself on your game. Crusader kings 2 wiki. There are Americanist groups, who worship the founding fathers, and a cult called the Consumerists, who treat materialism as a religion (The Almighty Dollar is their actual deity) and are convinced the world fell apart because people didn't worship money enough. The British will get themselves together and do what they used to do best: invade and take over as much of the world as possible, so you can expect the return of the Redcoats at some point.Also, can you check in your device manager if there is an entry for battery? If there is, you could disable it. This should only show when it is a laptop/netbook. Yours is a desktop so it is safe to disable it.It is very important to have a recent complete backup of your computer. Sometimes, when installing a new CMOS battery, system will not boot up, therefore the backups would come handy. For a picture of what battery looks like in a motherboard look at the attached picture. To replace the battery, take the old battery out and take it with you, so that you can get an exact match.You could get this warning if your are using a UPS. If a UPS(uninterruptible power supply) is being used, a battery icon will appear in your taskbar if set that way.The following link will describe how to change the CMOS battery properly: - This is the CMOS battery which sit on the motherboard of the computer and keeps things such as the time and bios working.There is a guide how to replace the battery here: http://www.computerhope.com/issues/ch000239.htmIf you want to do it yourself (and it's not hard) just make sure you 'ground' yourself first. The easiest way to accomplish this is by touching any METAL external part of the computer case when it's on or has the power lead connected. BE SURE TO REMOVE THE POWER LEAD BEFORE YOU OPEN THE CASE AND START DELVING INSIDE!
- Does it say voltage is low ? or warning is just like a laptop?You can check the contacts of cmos battery in your cpu, clean it. or you may need to replace it. if your pc is very old.If the warning is similar to a laptop,
you can go to display properties> screensaver > power > alarms unckeck alarms and apply.
Windows peppers you with warnings as the battery power gets low. The Battery notification icon on the taskbar changes, and eventually pop-up messages appear. The idea is to alarm you: Either charge the battery, save your work, and shut down — or pray.
The good news is that you have control over the warnings. You can set when they appear and which actions are taken. The two warning levels are titled Low Battery and Critical Battery. Follow these steps to set each level and determine which actions are taken:
- Open the Control Panel.Press the Win+X keyboard shortcut and choose the Control Panel item from the supersecret menu.
- Choose Hardware and Sound.
- Choose Power Options.You see the laptop’s power plans.The battery warning levels are set for a specific plan.
- Next to the active power plan, click the link Change Plan Settings.
- In the Edit Plan Settings window, click the Change Advanced Power Settings link.Finally, the Power Options dialog box shows up. It’s the happening place for all things having to do with power management in Windows.
- Scroll the list, and locate the item labeled Battery.As you would expect, it’s the last item in the list.
- Click the plus sign (+) by Battery to display various battery notification and action options.Each item has two subitems — one for settings when the laptop is on battery power and a second for when the laptop is plugged in.
- Set the battery-level warnings.In chronological order, here are the items you can set:
- Low-battery notification: Sets a warning for a low battery level, before the situation becomes critical. Values are set to On to set the low warning and Off to ignore it.
- Low battery level: Determines the battery percentage for the low-battery-level warning. This value should be generous, well above the critical level.
- Low battery action: Directs the laptop in what to do when the battery charge reaches the low-battery level. Other options are Sleep, Hibernate, and Shut Down.
- Critical battery level: Sets the battery power level (percentage) for the crucial battery-level action.
- Critical battery action: Directs the laptop to sleep, hibernate, or shut down when the critical battery level is reached.
- Click OK to confirm the settings.You can close any remaining dialog boxes and windows.
Setting the warnings is only one part of good power management. Hopefully, you never see the low-battery notification and, most definitely, you never have the laptop automatically hibernate on you (for the critical-level action).
- The low-battery warnings are independent of the Battery Saver setting.
- When the low-battery notice sounds or appears and you’re blessed with a second battery for your laptop, pop it in and keep working!
- That critical-battery notice is serious. Laptop time is over! You see no warning; the laptop simply hibernates or turns itself off — whichever option is set.
- The best thing to do when power gets low: Plug in! This is why you might consider taking your power cord with you wherever you go.
By default, when you are running a Windows 10 device on a battery, it shows you a notification popup when the battery gets very low. It is very important that this notification shows reliably, so you can connect your device to an AC power source so you can continue using it uninterrupted. If Windows 10 stops showing these notifications, it can be a serious issue especially if you are frequently working on a battery. Here is how to resolve it.
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There is a special option in Windows 10 which is responsible for the low battery level which triggers the alert. Although Microsoft is merging all Windows settings with the new Settings app, as of this writing the required option is still located in the classic Control Panel applet. You can access it as follows.
- Open Settings.
- Go to System - Power & Sleep.
- On the right, click 'Additional power settings'.
- There, click the link 'Change plan settings' as shown below:
- In the next window, you need to click the link named 'Change advanced power settings':Tip: see How to open advanced settings of a power plan directly in Windows 10.
- In Advanced Settings, go to Battery -> Low battery notification. Make sure it is not disabled. In the screenshot below, the notification is disabled:You need to adjust it to the desired level.
This should restore your low battery notifications in Windows 10.
![Windows 10 Battery Warning Windows 10 Battery Warning](/uploads/1/2/3/7/123714846/653008457.jpg)
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