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HP laptop does not see the battery. Why the laptop does not see the battery: causes, fixes

The battery is one of the key elements of any laptop or netbook. It is the battery that makes a laptop different from a desktop computer. And it is the battery that keeps the laptop mobile. If it is faulty, then the laptop is immediately tied to the outlet. Therefore, laptop owners are very interested in various issues related to the operation of batteries. Today we are going to take a look at a few issues related to laptop battery. The main question addressed in this article is why the laptop does not see the battery. We will try to understand the causes of this problem, and what to do in such a situation.

There is a situation when correct installation battery, the laptop does not see the battery. At the same time, you are absolutely sure of the correct installation and normal contact between the battery and the laptop. If it does not detect the battery, then the taskbar icon is displayed with a red cross.

If you hover over the battery icon with the mouse, the message "Battery not detected" will be displayed.

What could be the reason for this message?

Battery failure;
Incorrect battery connection;
Malfunction motherboard laptop.

To find out what's the matter here, replacing the battery with a known working one will help. If the laptop sees the battery, then the reason is the old battery. If the problem persists, then it is a motherboard failure.

But not everyone has a spare battery at hand. Therefore, the following are ways to resolve this malfunction with what is at hand.

What to do if the battery is not detected on the laptop?

In principle, Windows may not detect the battery if everything is in order with the latter. And from the outside, everything looks like the laptop does not see the battery. To check the battery status yourself, you can do the following:

Reset hardware settings;
BIOS reset;
BIOS upgrade;
Checking the start of the laptop on battery power without connecting to the network.

These operations are discussed in more detail below. If you need, read the article at the link provided.

Reset hardware settings

Resetting the hardware settings deletes all information that is in the temporary memory of the laptop. After that operating system Windows will definitely run a full scan of the laptop. Including the battery.

The following sequence of actions must be done to reset the hardware settings:

Disconnect the laptop power supply or docking station, if any;
Take out the battery;
Then hold down the Power button for 15 seconds. Many users are wondering why press the power button on a laptop that is unplugged with the battery removed. This is necessary to remove the residual charge of the capacitors;
Reconnect the battery and power supply to the laptop;
Turn on the laptop and check the battery status in the Windows taskbar.

If the reset operation did not help, then proceed to the next solution to the problem.

Checking the laptop starts on battery without a network connection

This option is recommended by HP for their laptops. They advise running a laptop running on battery without a network connection. If this succeeds, then HP experts advise reinstalling the operating system. This is reported to help in case the battery is not detected on the laptop.

If the laptop refuses to start without a power adapter, then it has a direct path to service center.

Which laptops are prone to problems

If it is almost impossible for a simple layman to conclude which laptop models are prone to battery failure, then computer service specialists can give the most comprehensive answer on this topic.

Repair shop employees note the fact that laptop owners are addressing laptop performance problems related to battery identification by the operating system, as expensive devices, and budget portable computers.

The following laptop models are most susceptible to such a malfunction:

Machines
Lenovo
Packard Bell
Samsung
Toshiba

In addition, owners of domestic Aquarius laptops, which also use lithium batteries, often face similar problems.

If the laptop battery is no longer detected by the system, it is absolutely not necessary to seek help from specialists. Most of the reasons that cause this behavior of portable computers can be eliminated on their own.

Mechanical problems and how to solve them

If for definition software faults laptop often needs additional software, mechanical problems can be identified during a visual inspection.

Bad battery

A battery failure often causes the laptop not to see it. Lithium batteries have a limited number of charge-discharge cycles, so if the laptop has been used for many years, then it is enough to purchase a new battery for the operating system to start detecting the battery.

A new power supply can also be the culprit for such a malfunction, but only if the laptop was equipped with a defective element.

If the battery was previously charged with an adapter of the wrong type, then such actions could also cause the failure of this element with no identification by the operating system. Replacing the battery, in these cases, completely solves the problem of its detection by the computer.

Oxidation of contacts on a battery or laptop

Oxidized contacts may be the reason that the OS does not see the battery. In addition, the presence of a film with high resistance will lead to a rapid discharge of the battery. To determine such a malfunction is not difficult. It is enough to turn off the laptop, remove the battery and inspect the battery contacts.

Plaque that interferes with the normal functioning of the device can also be on the contacts of the laptop. If a dark or greenish film is found, clean the contacts on the battery with an eraser or a cloth soaked in alcohol.

Software problems and solutions

If the laptop battery is not detected, but no violations of its performance were found during a visual inspection, then most likely the cause of the malfunction is software failure. Such malfunctions can also be eliminated without the involvement of professional craftsmen.

Remove all new programs

Installing new programs may result in wrong work some operating system services. First of all, such a malfunction can be caused by utilities that perform the function of optimizing power consumption. laptop. Delete early installed programs in many cases completely solves this problem.

Update or reinstall battery drivers

If removing the utilities did not help restore the “vision” to the operating system and it again informs the user that the battery is not detected, then you should try updating the battery driver to the latest version. For this purpose, you can use special software or perform the operation yourself.

In windows 10, to update the driver manually, you must:

Go to device manager.
Find the battery in the list of connected equipment.
click right click mouse by battery name.
Select "Update driver".

The system will automatically search for the driver, including on the Internet. If a new driver was not found, you can try to reinstall the existing software devices.

For this you need:

Right click on the battery in device manager.
Select "Delete".
Restart laptop.

The next time you turn it on, the operating system will automatically detect the battery and install the correct one for it. normal functioning driver.

Reverting the system to before the problem occurred

If the battery was previously detected by the laptop, then it is enough to perform a system restore to completely restore the previous settings. To roll back the system in windows 7, you must:

Click "Start" then "Run".
Enter command:
On the System Protection tab, click the System Restore button.
On the next tab select a restore point and click Finish.

As a result of such an operation, the system configuration that was saved earlier will be restored.

OS level crashes and how to fix them

If system restore did not help, then the most drastic measures should be taken, up to reinstalling the operating system.

OS reinstallation

To perform this operation, you will need boot disk with windows, which must be installed in the drive. Then you should restart the laptop and go into BIOS. In the window that opens, you need to find a section that displays the sequence for selecting boot disks.

To boot First, select CD-ROM. Then save the settings and try to boot from installation disk. Next, the system is installed in the standard way.

Restoring factory settings

This method will allow you to restore the laptop to working capacity only if the user has not previously reinstalled the operating system. During this operation, information from hard drive will be deleted, so you should save important documents in advance to removable media. Restoring the factory settings of the laptop is carried out in the following sequence:

The laptop turns on.
Key held down
In the window that opens, select "Windows setup".
Select the "Restore Windows to the first partition" option.
Press the "Finish" button.

BIOS level crashes and how to fix them

If the battery is connected correctly, but is not detected by the computer, then a faulty BIOS may be the cause of the laptop malfunction.

Reset settings

The easiest way to restore the operation of the system software is to reset the settings. This operation is performed in the following sequence:

Turn on laptop.
Enter BIOS by pressing the function key.
Go to the Exit menu.
Select Load setup defaults.
Press a key

Update BIOS

Sometimes you can solve the problem by updating the BIOS to a more new version. To perform this operation correctly, you must adhere to the following recommendations:

Go to the BIOS manufacturer's website and find the support section for your model.
To find latest version software.
Download the BIOS update utility.
Run the program on the computer.

The BIOS of the laptop will be updated automatically, but in order to prevent a failure during this operation, it is necessary to charge the battery in advance to the maximum value so that the device does not turn off at the most inopportune moment.

If the laptop writes that it does not see the battery, then you can almost always fix such a malfunction yourself. In most cases, it is enough to strip the contacts on the laptop or simply re-plug the battery.

Depending on the laptop model, the methods for solving the problem may differ, so if you still have questions or is there something supplement the article? Write about it in the comments. This will make the article more complete and useful.

A key element in a laptop is a rechargeable battery, without which its mobility is impossible. Therefore, any problems in this aspect are of concern to users in the first place. Against the background of the existing problems associated with the operation of the battery, it is worth considering in detail the most common - why the laptop does not see the battery. Knowing the reasons, you can correct the situation yourself without resorting to the help of specialists.

Description of the problem

There are frequent cases when, with the battery in good condition and correctly installed, the laptop does not see it. In such a case, a red cross is on the corresponding icon located in the taskbar. When you hover over it with the mouse cursor, a message appears - "Battery not detected."

Additional factors indicating a battery malfunction:

The battery does not store the incoming charge.
The recharge indicator light is flashing or off.
The battery is not detected by the computer.
The charge is constantly kept at the same level.

How long a laptop can operate without a charge depends on the capacity of the battery and how worn it is. If you do not solve the problem, then you will need to bind the gadget to an electrical outlet.

A similar alignment is possible if you constantly keep the device connected to the mains.. Over time, the duration of the computer from a single charge will be reduced. This is due to the negative effect of direct currents on the battery. As a result, the laptop completely loses it from the field of view.

Main causes and methods of detection

Why the laptop does not see the battery:

technical problems in the battery;
incorrect connection;
OS crash;
motherboard problems.

The first thing they do is replace the battery with a working one. If it is detected, then the whole thing is in the battery. In a different scenario, they are looking for a malfunction in the motherboard.

Since not everyone has a spare battery, there are other options for checking.

Checking adapter functionality

For stable recharging, the power adapter must be fully functional. Check it in the following way:

Restart the computer.
In the first seconds of launch, press the F2 key and wait until a message appears about the transition to the settings - Entering Setup.

In the BIOS modification, they check the correct installation of the type of power adapter. If the word “no” is opposite, then make sure that the device is connected to the PC. When the adapter is assigned the status "Unknown", a series of sequential actions suggested by the system to correct the problem are performed. If it is correctly detected, they move on in search of the root cause.

Running a diagnostic test

Running the diagnostic program allows you to determine the cause of the malfunction and solve the problem according to the proposed scenario. There are built-in (Imtec Battery Mark) and online tests. To activate the first option, you will need:

Turn on the laptop and press F12.
In the menu that appears, select "Diagnostics".

If the test results are negative, go to the "Reference table of ePSA, PSA error codes and troubleshooting steps" section. Further manipulations are coordinated according to the instructions issued there. Upon successful completion of the diagnostics, they conclude that the primary source of problems is the operating system.

For an online check, you need to download a utility that corresponds to a specific brand of computer. So, on HP - this is Support Assistant, Dell - Support Assist.

Solution

To get the battery working on your own, it is recommended to try several methods:

reset the hardware settings by resetting the BIOS;
charge the battery without connecting a computer;
restore or reinstall the system;
run the troubleshooter;
reinstall the battery driver.

BIOS reset

The BIOS is software built into the computer's motherboard. By resetting it to the initial version programmed by the manufacturer, it is sometimes possible to restore the full interaction of the device and the battery. A similar situation develops when the factory settings were changed or a new battery was installed.

This can be done directly through the BIOS, provided that the computer is powered by a power adapter.

Adhere to the following algorithm:

Turn off the device and remove the battery.
Take out the charger from the network.
Press the Power button and hold for at least 30 seconds.
Connect the laptop to a power outlet without installing a battery and start it up.
Go to BIOS.

The BIOS system is entered by pressing the corresponding button at the time of startup, which differs by device models - mainly F1, F2, F12, Del or Esc. There are hints at the bottom of the menu that you should pay attention to.

Select Load Defaults or Standard CMOS Features and agree to save the settings when prompted.

The final step is to turn off the PC, unplug it, insert the battery, and turn it on again. Often such simple manipulations lead to a positive result.

Charging the battery with the PC turned off

Battery performance can be negatively affected by some factors: incorrect driver functionality, power management failures. Charging the battery in isolation, separate from the OS, eliminates the hardware from the problems. To do this, turn off the PC and in this state recharge the battery.

After the resumption of work, they look to see if the charge level has increased or not. If nothing has changed, go to the next step.

Recovery and / or reinstallation of the OS

Another cause of trouble can be Windows system failures. If the probability of a battery failure is excluded, then two directions will be the way out: restoring or reinstalling the OS.

The first option involves a return to the time period when it was detected by the computer. It is enough to go to the menu, where a pop-up window will display a list of available restore points. Choose the appropriate one, focusing on the date, and activate the process. Then the program will do everything itself without outside intervention.

More radical, but effective, is the second option. Before you start reinstalling the OS, it is recommended to save important files on a flash drive or take it to the cloud. Then they completely reboot the system using a separate boot disk.

Running the Microsoft Fix-It Program as a Troubleshooter

A special built-in OS will help solve the problem with the battery. Windows tool troubleshooting this kind of problem. Available only for versions 7, 8/8. 1 and 10.

Step-by-step instruction:

Press the key combination Windows + R on the keyboard.
In the dialog box that appears, type the Control command and run it with Enter.
In the search bar located in the control panel, enter Trouble shooter and click on "Troubleshoot".
In the "System and Security" tab, activate the "Power" icon.

Then you need Account administrator to log into Windows. If a "User Account Control" prompt appears during startup, you must accept it.

Uninstalling and Installing the Microsoft ACPI Battery Driver

Reinstalling the device driver is another step that can give the desired result and fix a difficult situation. Sequencing:

Press two keys at the same time: Windows and R.
In the dialog space called "Run", type - devmgmt.msc and press enter.
In the "Device Manager" section, next to the "Batteries" column, put a plus or a checkmark.
The right mouse button indicates "Battery with ACPI Compliant Management (Microsoft)", and the left one - "Delete".
Confirm the performed manipulations with Ok.

It remains to restart the computer and check the correct functioning of the battery.

What to do when the battery is not fully charged

The installation disk is often overloaded with useless utilities that slow down certain options. These include energy management managers. Such programs are installed by manufacturers in order to extend the life of the battery due to incomplete charging. If a similar situation is noted, you need to find unnecessary applications and delete them. The name of such system add-ons contains the brand of the laptop plus a combination of words - Power Management.

To search for slowing down utilities, just go through "Start" to "Control Panel" - "All Control Panel Items" - "Programs and Features".

Find unnecessary applications and removed. You may need to reboot after completing the procedure.

Most of the proposed methods help to establish the relationship between the laptop and the battery. If you cannot fix the problem yourself, contact the service center. Then there is a possibility of hardware failure. Usually the controller burns out, which can only be replaced by professionals.

Notebook users know that when there is a problem with the battery, the system notifies them with the message “It is recommended to replace the battery on the laptop.” Let's take a closer look at what this message means, how to deal with battery failures and how to monitor the battery so that problems do not appear for as long as possible.

Starting with Windows 7, Microsoft began to install a built-in battery health analyzer in their systems. As soon as something suspicious begins to happen to the battery, Windows informs the user about it with the “Replace the battery recommended” notification displayed when the mouse cursor is hovered over the battery icon in the tray.

It is worth noting that this does not happen on all devices: the configuration of some laptops does not allow Windows to analyze the state of the battery, and the user has to track failures on his own.

In Windows 7, the warning to replace the battery looks like this, in other systems it may change slightly

The whole point is that lithium-ion batteries due to their structure, they inevitably lose capacity over time. This can happen at different rates depending on the operating conditions, but it is impossible to completely avoid the loss: sooner or later the battery will no longer “hold” the same amount of charge as before. It is impossible to reverse the process: you can only replace the battery when its actual capacity becomes too small for normal operation.

The replace message appears when the system detects that the battery capacity has dropped to 40% of the declared capacity, and most often means that the battery is critically worn out. But sometimes a warning is displayed, although the battery is brand new and has not had time to grow old and lose capacity. In such cases, the message appears due to an error in Windows itself.

Therefore, when you see this warning, you should not immediately run to the parts store for a new battery. It is quite possible that the battery is in order, and the system posted a warning due to some kind of malfunction in itself. So, the first thing to do is to determine the reason why the notification appeared.

Checking laptop battery status

On Windows there is system utility, which allows you to analyze the state of the power supply system, including the battery. She is called through command line, and writes the results to specified file. Let's figure out how to use it.

The utility can only be used with an administrator account.

The file consists of many notifications about the state of the elements of the power supply system. The item we need is “Battery: battery information”. In addition to other information, it should contain the items “Calculated capacity” and “Last full charge” - in fact, the declared and actual battery capacity at the moment. If the second of these points is much smaller than the first, then the battery is either poorly calibrated or has really lost a significant part of its capacity. If the problem is in the calibration, then to eliminate it, it is enough to calibrate the battery, and if the cause is wear and tear, then only buying a new battery can help here.

The corresponding paragraph contains all information about the battery, including the declared and actual capacity

If the calculated and actual capacities are indistinguishable, then the reason for the warning is not in them.

Operating system failure

A Windows OS crash can very well lead to incorrect display of the battery status and errors related to it. As a rule, if the problem is software errors, we are talking about damage to the device driver - the software module responsible for managing one or another physical component of the computer (in this situation, the battery). In this case, the driver must be reinstalled.

Since the battery driver is a system driver, when it uninstalling Windows will automatically install the module again. That is, the easiest way to reinstall is to simply remove the driver.

In addition, the battery may be incorrectly calibrated - that is, its charge and capacity are displayed incorrectly. This is due to errors in the controller, which incorrectly reads the capacity, and is completely detected when easy use devices: for example, if the charge “falls” from 100% to 70% in a few minutes, and then the value stays at the same level for an hour, then something is wrong with the calibration.

Reinstalling the battery driver

The driver can be uninstalled through the "Device Manager" - built-in Windows utility, which shows information about all of the computer's components.

Battery calibration

The most common way to calibrate a battery is to special programs- they are usually pre-installed in Windows. If there are no such utilities in the system, you can resort to calibration through the BIOS or manually. Third Party Programs for calibration can also help in solving the problem, but it is recommended to use them only as a last resort.

Some BIOS versions "can" calibrate the battery automatically

The calibration process is extremely simple: you must first charge the battery fully, up to 100%, then discharge it “to zero”, and then charge it again to the maximum. In this case, it is advisable not to use the computer, since the battery should be charged evenly. It is best not to turn on the laptop at all while charging.

In the case of manual calibration, the user faces one problem: the computer, having reached a certain battery level (most often 10%), goes into sleep mode and does not turn off completely, which means that it will not be possible to simply calibrate the battery. First you need to disable this feature.

The easiest way is not to boot Windows, but to wait for the laptop to discharge by turning on the BIOS. But this takes a lot of time, and in the process you will not be able to use the system, so it is better to change the power settings in Windows itself.
To do this, you need to go along the path "Start - Control Panel - Power Options - Create a power plan". Thus we will create new plan power, working in which the laptop will not go into sleep mode.
To create a new power plan, you need to click on the corresponding menu item
During the setup process of the plan, you need to set it to "High performance" so that the laptop runs out of power faster.
To drain your laptop faster, choose a plan with high performance
You also need to prohibit putting the laptop into sleep mode and turning off the display. Now the computer will not "fall asleep" and will be able to shut down normally after "zeroing" the battery.
To prevent the laptop from going to sleep and ruining the calibration, you need to disable this feature.

Other battery errors

"It is recommended to replace the battery" is not the only warning that a laptop user may encounter. There are other problems that can also be the result of either a physical defect or a software failure of the system.

Battery connected but not charging

A battery connected to the mains may stop charging for several reasons:

the problem is in the battery itself;
failure in the battery drivers or BIOS;
problem in the charger;
the charge indicator does not work - this means that the battery is actually charging, but Windows tells the user that this is not the case;
third-party power management utilities interfere with charging;
other mechanical problems with similar symptoms.

Determining the cause is actually half the job of fixing the problem. Therefore, if the connected battery is not charging, you need to start checking everything in turn. possible options failures.

Battery not detected

The message that the battery is not found, accompanied by an icon with a crossed-out battery, usually means mechanical problems and can appear after the laptop hits something, power surges, and other cataclysms.

There can be many reasons: a burned out or loose contact, a short in the circuit, and even a “dead” motherboard. Most of them require a visit to the service center and replacement of the affected part. But fortunately, the user can do something.

If the problem is in a loose contact, you can return the battery to its place by simply disconnecting it and connecting it back. After that, the computer should "see" it again. Nothing complicated.
The only possible software reason such an error is a driver or BIOS problem. In this case, you need to remove the driver for the battery and roll back the BIOS to default settings(how to do this is described above).
If none of this helps, it means that something has burned out in the laptop. You have to go to the service.

Laptop Battery Care

We list the reasons that can lead to accelerated wear of the laptop battery:

temperature extremes: cold or heat destroys lithium-ion batteries very quickly;
frequent discharge "to zero": every time the battery is completely discharged, it loses part of the capacity;
frequent charging to 100%, oddly enough, also has a bad effect on the battery;
operation with voltage drops in the network is detrimental to the entire configuration, including the battery;
constant operation from the network - also not the best way, but whether it is harmful in a particular case depends on the configuration: if the current passes through the battery during operation from the network, then it is harmful.

Based on these reasons, it is possible to form principles for the careful operation of the battery: do not work in the "mains" mode all the time, try not to take the laptop outside in cold winters or hot summers, protect it from direct sunlight and avoid networks with unstable voltage (this battery wear is the lesser of the evils that can happen: a burned-out board is much worse).

As for the full discharge and full charge, Windows power settings can help with this. Yes, yes, the one that “takes” the laptop to sleep, preventing it from being discharged below 10%. Third-party (most often pre-installed) utilities will deal with the upper threshold. Of course, they can lead to a "plugged in, not charging" error, but if you configure them correctly (for example, stop charging at 90-95%, which will not affect performance too much), these programs are useful and will protect the laptop battery from excessively rapid aging .

As you can see, the notice to replace the battery does not necessarily mean that it is actually out of order: the causes of errors are also software failures. As for the physical condition of the battery, the loss of capacity can be significantly slowed down by following the recommendations for care. Calibrate the battery in time and monitor its condition - and the disturbing warning will not appear for a long time.

Reset hardware settings;

Reset BIOS;

· BIOS upgrade;

Checking the start of the laptop on battery power without connecting to the network.

These operations are discussed in more detail below. Resetting the hardware settings deletes all information that is in the temporary memory of the laptop. After that, the Windows operating system will definitely conduct a full check of the laptop. Including the battery. The following sequence of actions must be done to reset the hardware settings:

Turn off the laptop power supply or docking station, if any;

· Take out the battery;

· Then hold down the laptop power button for 15 seconds. Many users are wondering why press the power button on a laptop that is unplugged with the battery removed. This is necessary to remove the residual charge of the capacitors;

Reconnect the battery and power supply to the laptop;

Turn on the laptop and check the battery status in the Windows taskbar.

If the reset operation did not help, then proceed to the next solution to the problem.

BIOS reset

If the battery is not detected on the laptop, then resetting the BIOS can reset the laptop to factory settings. To do this, you need to take the following steps:

When you turn on the laptop, press the button (key combination) several times to enter the BIOS on your model. Depending on the model or manufacturer, this may be Del, F2, F10, F12 and others;

AT BIOS settings find the option that is responsible for resetting the settings. These can be the following options: "Restore default settings", "Reset settings to factory settings", "Default settings" and the like;

Then you need to confirm the reset, save the changes made (usually the F10 key) and exit the BIOS.

After that, check the battery status in the operating system.

BIOS upgrade

If resetting the parameters to default values \u200b\u200bdid not help and the laptop does not see the battery, then you can try updating the BIOS. Sometimes this can help if the laptop battery is not detected. To do this, you need to find a fresh one on the manufacturer's website. BIOS version for your model. You will also need special utility for firmware. As a rule, all manufacturers produce such software. Some manufacturers implement such utilities directly in the laptop's BIOS. But if you do not have experience with BIOS firmware, and do not clearly imagine the whole process, it is better not to take on this matter.

And further. If a known working battery during installation does not change the situation, then this indicates a malfunction of the motherboard. Whatever experts say. There may also be a situation that the power supply and cable are working, but the power connector is faulty. It is subject to replacement, which must be carried out in a service center.