Laptops and Tablets • Recommendations and advice


Asus laptop not charging from the mains

Table of Contents

Software problems

Quite a harmless malfunction, it can be eliminated on its own, therefore, it is recommended to check it first. Software glitches are most likely if the OS was updated or battery-monitoring apps were installed before charging problems.

  • Reboot laptop.
  • If third-party software was installed, uninstall it. The fact is that some utilities may conflict with the built-in tools for battery management.
  • If the previous steps did not work, if possible, roll back the OS to the moment when the battery was charged properly.

asus, laptop, charging, mains

In addition, outdated drivers can be source of problems. To check, you should:

  • Go to “Device Manager”. Find and expand the item “Batteries”.
  • Right-click on the “Battery with ACPI” sub-item, select the “Delete” line in the context menu.
  • Reboot device.

If the required section is missing in the “Dispatcher” or the software is still faulty, as indicated by the yellow triangle with an exclamation mark, then it is recommended to independently find and install drivers for your laptop model.

Malfunction of the battery, controller or power circuit

In addition to wear and tear, the battery is susceptible to ordinary breakdowns, which can be caused by overheating, drop, power surge or too long connection to the charger. It is not always possible to identify a malfunction on your own; first of all, it is recommended to carry out a visual inspection:

  • Turn off and unplug the laptop.
  • Remove the battery. If it is not removable, carefully remove the back cover. Self-manipulation can lead to loss of warranty.
  • Examine the battery for swelling, smell of burnt plastic.

The absence of signs does not mean serviceability, but if they are, then the battery cannot be used. it can explode, injuring the user, and also cause irreparable damage to the device.

If the problems started after the laptop fell, then you should suspect the failure of the controller. You can check it yourself with a multimeter, but this requires some knowledge of the power supply system to the battery.

Any element in the power circuit may be to blame for the battery being connected but not charging. It is not always possible to independently identify and repair a faulty part, therefore it is better to contact a service center.

Incorrect initialization of the battery

If charging does not go to a new battery, it may be due to incorrect detection of it by the laptop. First of all, it is recommended to carry out the following procedure:

  • Turn off the device, disconnect it from the mains and remove the battery.
  • Press and hold the power button for 20-30 seconds, on some models up to 60 seconds.
  • Insert the battery, connect the power supply and start the laptop after a few minutes.

If the battery is non-removable, you need to hold down the power button while the device is on (with the charger disconnected), hold it until it turns off, followed by a click, and another 60 seconds. After 15-20 minutes, connect the laptop to the network and start.

Another method, which is also recommended in case of system failures, is to reset the BIOS to factory settings. For this you need:

  • Repeat the above procedure with the laptop disconnected from the power sources and holding the power button. Connect it to the mains, do not insert the battery (if it is removable).
  • Go to BIOS. To do this, when starting the device, start clicking on the desired key. on Asus laptops, this is usually F2 or Del, but it can be F1, F6, F8, F12, Ctrl F2. If you didn’t get in the first time, it is important to take into account that Windows 8 and 10 use fast startup, so the laptop should not be turned off, but rebooted.
  • On the main page, find the item containing the words “Load Defaults” or “Restore Defaults”. Click on it, confirm the action.
  • After a successful reset, turn off and disconnect the laptop, insert the battery, connect to the mains and start.

On old laptops, updating the BIOS can help correct the situation. for this you need to find and download a new version for your model and follow the instructions suggested by the manufacturer.

Battery not charging on Asus laptop. What could be the reason?

Battery problems are the most common among laptop owners. If your Asus laptop does not charge at all or does not reach 100% charging, the problem could be either with the software or with a malfunction of the battery itself. In the first case, it is possible to independently correct the situation, in the second, the battery will need to be replaced.

Laptop battery won’t charge at all

The main advantage of a laptop over a stationary computer is its mobility, the ability to work for some time without electricity. Therefore, the most unpleasant situation is when the battery has stopped charging at all.

This malfunction can manifest itself in two ways:

  • No current flowing to the battery.
  • Electricity comes in, but the charge level does not increase.

The reasons for such a malfunction may be different. If the laptop works from the network, and when it is disconnected from the power source, it immediately turns off, then the matter is most likely in the hardware. But if the laptop shows a zero charge level, but continues to function autonomously, you should look for a glitch in the OS settings.

The battery has reached the end of its life

The average service life of a lithium-ion battery is 2-3 years, and even less if the temperature is violated, frequent recharging or long non-use. Therefore, if the battery does not charge after overheating, extended storage, or was purchased several years ago, most likely it needs to be replaced.

Often, a decrease in battery life becomes a harbinger of battery failure. You can track the change in capacity using special programs: Battery Care, Battery Bar, Aida 64.

Hardware faults

If a software failure is excluded, then this does not mean that the problem is in the battery. The most common reason a laptop battery won’t charge is a faulty cable or power supply. It’s easy to check it. just remove the battery, connect the device to the network and try to turn it on. If no current is supplied, the laptop will not start. The solution to the problem is to replace the charging or part of it. for example, if only the cable is damaged.

It should be borne in mind that the connector on the laptop may be faulty. then repair will be required. For diagnostics, you need to try to connect another charger.

In addition, it is recommended to check where the battery is connected: disconnect it and carefully inspect the contacts. There should be no signs of oxidation on them. they can be removed with an eraser or a toothbrush with a mixture of ammonia, alcohol and soda, and then gently rinsed with alcohol.

Less common, but there is a malfunction of sockets or insufficient voltage in the mains.

The battery has reached the end of its life

If the battery is old and quickly discharged before that, it is likely that the moment has come for it to finally lose its ability to accumulate and store charge, although in principle the indicator in the system tray should indicate the charging procedure. In any case, such a battery must be replaced. The same applies to batteries that have been out of work for a long time: if they are not regularly recharged, they can fail.

Hardware faults

The laptop does not charge the battery, and the charging is connected. where else to look for the reason? Are you sure that the problem is with the battery? Prevent breakage and damage to other devices. charger, cable and contacts. First of all, make sure that the battery is installed correctly in the connector. Remove the battery and carefully inspect it for damage and swelling, check the quality of the contacts: over time they can oxidize.

We also check the socket, plug and other elements of the power circuit. Many chargers have an LED indicator, if it does not light up, this may indicate a breakdown of the charger. To completely eliminate this moment, remove the battery and try to turn on the laptop from the mains. If the laptop isn’t working, that’s right, the problem is not with the battery, but with the power supply. Alternatively, try to charge the battery with a guaranteed working charger with similar output parameters.

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Malfunction of the battery, controller or power circuit

Finding the answer to the question of why the battery on a laptop does not charge is often beyond the power of an ordinary user. The lack of reaction of the portable PC to the connection of the charger and the actual charging during normal indication may also indicate a malfunction of the battery, controller or power circuit in any of its nodes. If all attempts to find and eliminate the cause of the problem were unsuccessful, it’s time to contact the service center.

Laptop battery won’t charge at all

“Well, everything, something is covered, you need to urgently run to the service center, or even buy a new battery”. the first thing that usually comes to mind to a user who is faced with a problem. Yes, such a scenario is not excluded, but still do not rush, perhaps nothing serious happened, and the problem can be solved independently. The situation when the laptop battery is connected, but not charging, can be caused by many reasons, and often they are related not only to software, but also to hardware. An ordinary user can eliminate the first, but in the second case, most likely, you will have to resort to the help of a specialist.

Software problems

First you need to check if the problem is due to some software glitch. It is likely that the battery is still charging, only this is not shown by the indicator. Restart your PC and look at the battery charge indicator. If you have installed third-party power management software before, uninstall it. Laptop still not charging? Check if everything is ok with the ACPI drivers. Go to Device Manager, find and expand the “Batteries” item. Look to see if the “Microsoft ACPI Compliant Battery” device is marked with a yellow icon, however, even if the device is working fine, uninstall the driver and restart the computer. But the absence of the “Batteries” item in the Device Manager will indicate a hardware problem with the power board or contacts.

Problems with drivers often arise after installing Windows updates, so if the battery stops charging after the next system update, download the original software for the chipset and power management from the laptop manufacturer’s resource and install it.

Laptop battery not charging. how to solve the problem?

Compactness would remain the only advantage of laptops if they were not equipped with a battery or otherwise a battery. It provides the necessary autonomy, allowing you to work for some time in the absence of power sources in the access zone. On average, a laptop battery lasts for four hours of active work, which is not so much compared to smartphones and tablets, so the laptop has to be recharged regularly. Apart from the gradual decrease in power consumption, the battery usually does not have problems, however, one day, the user may unexpectedly find that the laptop battery is not charging.

Incorrect initialization of the battery

If you bought a new laptop with a pre-installed OS and find that the laptop is not charging from the charger, the battery may not initialize correctly. After turning off the laptop, turning off the charger and removing the battery, press and hold the power button for 15-20 seconds. Then insert the battery, connect the power supply, wait 10-15 minutes, turn on the device and check the battery in the system. This method is universal for all laptop models. Asus, Acer, Samsung and others.

Another way to get the laptop to detect the battery normally is to reset the BIOS settings to factory defaults. You can resort to it if the battery does not charge on the laptop after some system failure or replacement of the old “native” battery with a new one. Repeating the steps described in the previous paragraph until the power button is held down, connect the laptop through the charger to the network (do not insert the battery), turn on and enter the BIOS, holding the corresponding key at the time of turning on.

To enter BOIS in different laptop models, different keys can be used, for example, in HP it is F10 or Esc, in Asus and Acer, Lenovo, Dell and Samsung. F2 or Delete. In the settings of the basic I / O system, you need to find the option “Load Defaults”, “Load Optimized BIOS Defaults” or “Restore Defaults” and use it to reset the parameters to the original.

After that, turn off the laptop, unplug the power supply, insert the battery and turn on the device again. Check the correctness of charging by connecting the charger to the laptop PC.

When the laptop battery won’t fully charge

The case when the laptop battery does not fully charge, or at least the charge indicator shows it, requires separate consideration. The reasons for this phenomenon may be the limitations on the percentage of charge pre-installed in the laptop, as well as controller errors, due to which the real capacity of the battery does not coincide with the values ​​determined by Windows. As for the preset limits, they are set either at the BIOS level or at the level of proprietary utilities integrated into the system. Go into the BIOS of your laptop and look under the “Advanced” section for the “Battery Life Cycle Extension” option. To disable restrictions, set its value to “Disabled”.

In the system itself, you should look for such a utility as Power Management, although it may be called something else. Battery Life Extender, Battery Long Life, etc. Usually, the names of such power management managers begin with the laptop brand, for example, for Samsung it will be called Samsung Battery Manager. Go to the manager’s settings, find the battery management option and remove all restrictions. As for controller errors, the problem is solved here by calibrating the battery. manual or software.

So, we figured out why the laptop battery often does not charge. If you happen to encounter such a problem, start looking for the reasons with the simplest and most obvious things. checking cables, memory and contacts. After that, you can go to the software settings, including the BIOS settings. If you suspect that the reason is still in the hardware, then do not try to fix the problems yourself, unless you have the appropriate skills and do not understand electronic computer circuits. Well, do not forget that when replacing equipment, at least the same charger, it is very important that all the technical parameters of the new device meet the requirements of the computer, otherwise the correct operation of its components is not guaranteed.

Driver and Chipset Issues

The battery may not consume power due to problems with the operating system and its updates. For example, yesterday, the battery was charged as usual, but today the laptop does not respond to charging, and there were no system updates. Try following a few steps below:

  • Go to Device Manager
  • Find the ACPI Compliant Battery (or similar name) under the Batteries section. If there is no such item, this is the first sign of a problem.
  • Using the reboot function, restart the laptop.

Another option is that the laptop does not charge due to reinstalling the operating system or installing large updates. In this case, the device may not have enough drivers to correctly detect the battery. To fix this problem, you need to download and install the power management drivers.

Step 2. Replacing the battery

Excessive wear and tear on the battery can inform the wearer that the laptop has a reduced battery life, or that the laptop is not fully charged. To resolve this issue, you will need a new power supply. If removing the battery on your laptop does not require special skills, then it will not be difficult to replace it yourself. However, many Ultrabooks have non-removable batteries and can only be replaced by a service center.

Step 1: Check the status of the power supply

So what if your laptop battery won’t fully charge? It is important to check the condition of the battery correctly. This can be done with the free Battery Care program.

If you have an iOS laptop, you can use the free Battery Health utility.

Having launched these programs, we select three main parameters of the battery state for analysis:

  • Initial nominal battery capacity. This is exactly the power that the battery had before use.
  • The maximum charge is the current capacity of the battery.
  • Battery wear percentage. The higher this indicator, the greater the need for replacement.

Laptop battery not charging

Many people who use laptops for work or entertainment are familiar with the unpleasant situation. the laptop battery does not charge. over, this can happen both with a used model and with a completely new technique. Guided by the fact that the battery is a consumable item, many are in a hurry to replace it with a new one. But first, you need to find the root cause, because there are a lot of explanations for the fact that the laptop is not charging. These are technical difficulties, and systemic problems, or mechanical damage. Solving individual problems may require contacting the service, however, many situations can be solved independently. The main thing is to correctly identify the problem.

We have analyzed the situations that laptop users most often face, and below we will tell you in detail what actions you can take to solve unpleasant situations with the battery on your own.

Laptop battery does not fully charge

It happens that the laptop battery is connected, but does not fully charge. Unlike when there is no charge at all, in this case the device is charged, but not to the maximum. In addition, the battery life of the device is significantly reduced. For example, a laptop worked for 5 hours on a single charge, and started working for no more than 1 hour. Let’s take a look at three basic steps to help you identify and fix problems.

Step 3. Identify energy-intensive programs

If during the battery testing no critical deviations were found, and the wear of the power supply is small, then the reason that the battery on the laptop does not charge to 100 may lie in another. For example, a rapid discharge, an incomplete charge, or a sharp decrease in the operating time without a network, can signal that there are active programs on the device that do not allow switching to power saving mode. Such programs constantly load the processor and other modules, preventing the device from going into a low power consumption mode.

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To test the programs running on your device for increased power consumption, go to Task Manager and evaluate how actively background programs are using processor power.

If you see that some program is constantly loading the processor, while not being important in the operation of a laptop or operating system, you can safely remove it. Removing such unnecessary background programs will significantly improve the battery life of your laptop.

Laptop battery is connected but not charging

One of the most popular situations among users is that the laptop is running on AC power, but not charging. In other words, the power supply is installed correctly, the laptop is working, but it does not react to the charge in any way. over, when you hover the pointer over the icon showing the charge level, the following message is displayed: “Connected, not charging.” Let’s analyze the probable reasons why the laptop does not charge.

The main problem may be a software problem that can only be dealt with by a specialist. What can be done without resorting to the help of service workers? The optimal and rather effective method that does not require special skills is to reset the BIOS to default settings.

Solution 1

The first thing I did when I ran into this problem was to remove the battery from the laptop and plug in the AC cable. As a result, I turned on the laptop with the power cord plugged in until the Windows operating system was fully loaded. Then I put the battery back into the powered laptop.

Imagine the laptop started charging! However, I would not recommend this solution as it is not entirely secure. You should only follow these steps if there is no other choice.

Solution 2

I would recommend following these steps before doing the first solution. It’s safe and can help if your laptop won’t charge but is plugged in.

  • Open the Windows Device Manager (Right-click on “Start” and select Device Manager).
  • Expand the Batteries section, then right-click and remove any battery-related devices, such as “ACPI Compliant Battery”.
  • After that, right-click on the “Batteries” section and select “Update hardware configuration”.

Thus, you start the process of reinstalling the drivers, thereby solving the problem when the laptop does not charge but works from the network.

Solution 3

Unfortunately, there is no single solution to this problem. If the above methods do not work for your situation, you can try other minor variations of the first solution. For example, here’s one of them:

  • Make sure the power cord is plugged in and the battery is installed in the laptop. Turn on your laptop. When Windows boots up, unplug the power cord.
  • Now turn off the laptop and remove the battery.
  • Reconnect the power cord and turn on the laptop.
  • Go to Device Manager and remove “ACPI Compliant Battery” as described in the second solution.
  • Shut down Windows and unplug the power cord.
  • Insert the battery, plug in the power cord and turn on the laptop.

The battery should be re-detected by the laptop when Windows boots up, and then it should be charged as expected.

Due to the large number of different combinations, you may need a few different ways to fix the problem where your laptop won’t charge but is plugged in. Another possible combination is to uninstall the battery drivers in Device Manager, then remove the battery while the laptop is plugged in.

The laptop does not charge but is running on AC power

Yesterday, after I wrote another article on this site, I decided to disconnect my computer from the network and relax a bit on the couch in the living room. Unfortunately, the socket next to the couch doesn’t work, so I decided to rely on the laptop battery. Imagine my surprise when I disconnected the charger from the laptop, and the charge indicator showed 20%. I realized that the laptop is not charging but is working from the mains.

First, I ruled out the possibility of a malfunctioning battery right away, as it is original and looked fine. Let me remind you that original batteries are less prone to unforeseen problems than batteries from third-party manufacturers.

After some time researching this issue on the internet, I came up with the following solutions to the problem when the laptop does not charge but works from the network.

How to reanimate the battery

A laptop battery usually has about 4 or 8 cans, but in some cases there may be two (if the beech is small) or 12 (large gaming). The controller is responsible for the battery charging process, which is a printed circuit board with soldered microcircuits, and all this is connected to the battery.

So, the laptop does not hold a charge or does not charge at all, why this happens, and what to do.

And advice for laptop owners. If you work mostly at home and are plugged in, it is best to remove the battery. It is also better to work in the office without it. Of course, there is always a chance that the light will be turned off, and data not saved may be lost. But you can always connect an uninterruptible power supply.

If you have found a solution to why the laptop does not charge but works from the mains, write in the comments below, as well as your laptop model. It will be useful for other people who have faced a similar problem.

The laptop does not work without a battery just from the mains.

Sources:,, noutbuk-ne-rabotaet-bez-batarei-ot-seti

The laptop does not work without mains battery. Operating systems.

Connector on laptop

Careless use or transportation, as well as frequent lifting of the laptop by the charger cord or other types of physical impact can damage the very socket through which we connect the device to the network. Because of this, the laptop may not turn on without a battery. You can replace the connector yourself if you are able to disassemble the laptop and get to the socket itself. Otherwise, if you are not confident in your abilities, it is better to trust the specialists and send the laptop for service.

Power Supply

Very often, the cause of problems lies in the power supply.

Power supply cord

Also, the laptop may not turn on without a battery due to problems with the power cord. Depending on the intensity and type of transportation, the cord is damaged in two places: near the connection to the device socket and at the attachment to the power supply, let us consider in more detail.

  • At the base. As a rule, the place where the wire connects to the power supply unit is subject to constant bending and friction, so you need to be very careful when folding and bending the wire. Otherwise, the new cable will break in less than 6 months. You can replace or repair the wire yourself. If the part of the wire closest to the power supply unit is still “alive”, then you can cut off the leaky place and connect whole wires, be sure to insulate each one (usually there are two of them). If the wire has become unusable at its very base, then you can disassemble the unit and replace the wire already inside it. In any case, the appearance of your charger will undergo changes and lose its presentable appearance.
  • At the plug for connecting to a laptop. Most often, problems in this place appear after transporting the device with the charger connected. The wire is kinked and often breaks. Depending on the degree of “rubbing”, you can replace the leaky areas with a live wire or replace the wire completely, but then you will have to replace it in the power supply.

Laptop does not work without mains battery

What to do if the laptop does not work from the built-in battery, recovery from A to Z Asus X551M (X551MAV) does not turn on, does not charge or quick repair 2 🙂 the laptop does not work without a battery from the mains

Laptop does not charge and does not operate on AC power without battery.

The battery charge level does not change, and the light glows green, when the system is on, it writes the battery charge 95, charging does not go. The battery was completely discharged, although the adapter was connected, 1 method did not give results, with the second it turns on for 2-3 seconds, even the screen does not light up and turns off immediately, help with advice on what to do? Hello, Nikolai wanted to ask you my laptop when it is turned off and the battery is inserted, it charges the battery as I turn it on the laptop in the laptop the indicator blinks the battery does not cut anymore what is the reason if you understand me, tell me hello.

Asus X51L does not work from the mains and does not turn on without battery!

Hello! My laptop Asus X51L worked for two years, almost all the time it worked from the network, one day during work it stupidly passed out, after desperate attempts to turn it on, it did not turn on. I put it aside in a far corner, from time to time tried to turn it on, unsuccessfully, after about half a year I pulled it out from the far corner, pressed the start button and it turned on, but I was not happy for a long time, after four days of work it passed out again and so no longer included. I walked around different experts, read a bunch of topics, but no one heard anything like that! but still one craftsman said that I would check the voltage of the battery, he said, (I don’t remember the voltage anymore) if the voltage is less than some numbers, then the battery is dead, I measured it, really very small. close to 1.2 volts.

But it also does not work without a battery, that is, from the network! Is it possible that this laptop model does not work from the network without a battery.

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Reasons why the laptop does not run on battery

The battery is a consumable item that has a limited number of charge / discharge cycles. Over time, the battery capacity decreases, so the average battery life is 2-3 years.

In addition to the shelf life, there are other reasons for the failure of the battery:

  • Oxidized contacts.
  • Mechanical damage to the battery due to dropping or shock.
  • Power controller problem.

The laptop is not running on battery power but is running on AC power. Reasons and repairs in St. Petersburg

Let’s look at the reasons why your laptop does not work on battery power, but it does work on the mains and what can be done to fix the breakdown right now.

Some of the causes of breakdowns require professional repair using special equipment. At home, this cannot be done. If you are a resident of St. Petersburg, then our service center is at your service.

Diagnostics FREE.
7 (812) 953-94-11, 7 (921) 984-75-12 (Kamennoostrovsky prospect, 42, Petrogradskaya metro station)

Type of service provided Cost (rubles) Period of performance Guarantee period)
General table of for laptop repair
(not tied to a specific model)
Troubleshooting IS FREE 15 minutes to 2 days
Moisture has got under the cabinet (cleaning or replacing components) 1500 to 6500 2 to 7 days Up to 60 days
Replacing or repairing the charging connector (laptop won’t charge) 2500 From 40 minutes to 2 days Up to 60 days
Reinstall Windows / Mac OS / Drivers (laptop buggy) 1500 1 hour to 2 days Up to 30 days
Saving information (recovery) From 1000 1 to 3 days
Power controller repair From 1100 1 to 3 days From 30 days
Battery replacement (original) From model From 20 min From 6 months
Please note: the table shows the general for laptop repair without reference to any model and manufacturer. details can be obtained from the employees of our service center.

If, after disconnecting the laptop from the mains, it stops working, then its battery is definitely not in order, even if it shows charging. And although most users rarely need to operate autonomously, since there is usually a power outlet at hand, it is better to try to fix battery problems as soon as possible.

Fixing the problem yourself

Disclaimer: We are not responsible for your actions. Further information is for informational purposes only and does not prompt you to take action. If you are faced with a problem when the laptop does not want to run on battery power. better contact the service center.

Before replacing the battery, you need to make sure that your battery is really damaged or exhausted. First, remove the battery and wipe the contacts with an alcohol solution. Let the battery dry, put it back in the laptop and turn on the device. If the problem persists, try resetting your BIOS settings:

  • Unplug the laptop from the electrical outlet.
  • Remove the battery from it.
  • Press the laptop power button and hold it for 20-30 seconds to reset the residual voltage.
  • Without installing the battery in the compartment, connect the plug of the power supply to the laptop.
  • Turn on the laptop and enter the BIOS by pressing the key indicated on the start window (usually the Delete key, or F2).
  • On the “SaveExit” tab, select “Load Setup Defaults”.
  • Confirm the decision to reset the settings to the factory settings by clicking “Ok”.
  • Exit BIOS with saving changes by clicking “Ok”.
  • Turn off the laptop by holding the power button for 5-7 seconds.
  • Disconnect the power adapter plug and replace the battery.
  • Turn on your laptop in the usual way.

If resetting the BIOS settings helped correct the situation, then in the notification bar you will see a charging icon and a message stating that the battery is filling with energy. By the way, using this method, you will at the same time check the performance of the power supply. If the laptop does not turn on without a battery, then the cause of the problem must be looked for in the adapter, which may be damaged.

If you are using any battery monitoring utilities, it is best to uninstall them as they may prevent the battery from fully charging. All the necessary tools are built into the operating system, so no additional software is required to charge the laptop.

All laptop manufacturers have dedicated utilities for battery recovery. Go to your laptop manufacturer’s website and look for a similar one. The essence of their work boils down to the following: you connect your laptop to an outlet and turn on this utility. Within a few hours (or within a day) it will restore the battery by fully charging and discharging. It is not recommended to use a laptop at this time.

If all else fails. then the problem is serious and you will need to replace the battery or repair the damaged power controller. It costs money anyway.

Check the battery status

You can check the battery status with the free Battery Health program for iOS or the standard Battery Care utility in devices running Windows 7 and 8.

Three main parameters of battery health are important to us.

  • Declared nominal power. This is the capacity of the new battery when it just left the factory.
  • Maximum power. This is the current capacity value.
  • Battery wear percentage. The larger this value, the higher the need for replacement.

The problem of not reaching the required level is also solved by calibration.

Problem: The laptop battery is connected but does not fully charge

The problem is manifested as follows: the battery is charged, but does not reach 100%, i.e. does not fully charge. The operating time of the device from one charge is sharply reduced. For example, it worked up to 4 hours, and now it works only 40 minutes.

What to do if the laptop battery does not charge?

When there are problems with charging, many ask the question. “why is the laptop connected but not charging?” and rush to replace it with a new one. Yes, the battery is a consumable item. It is designed for a limited number of charge / discharge cycles, and over time, the capacity becomes much less than the nominal value indicated by the manufacturer. However, the charging problem will not necessarily be solved by replacing it. In this article, we will look at the three most common problems and tell you what to do to solve them.

Battery replacement (if necessary)

If the wear is high, then it is likely that it is the reason for the decrease in battery life. To solve the problem, you need a new battery, in most models it is removable. In this case, you can change it yourself. In a number of modern compact models, the battery is not removable and it will be more difficult to replace it yourself. It is safer to do this in a service center.

Diagnostics of programs on a laptop

If the diagnostic utility shows no significant wear on the battery in step 1, then the battery is probably not the direct cause of the drop in battery life. The culprit of the fast discharge may be some program you recently installed that runs in the background and prevents the processor and Wi-Fi chip from going into economic mode.

Open the Task Manager by pressing CtrlShiftEsc and analyze the CPU usage of background programs. Sort applications in the list by CPU usage and watch for a while. Removing unnecessary programs running in the background will increase battery life.

Method 3. if the power supply does not work

Another reason may be the loss of performance of the power supply and a decrease in the reliability of its plug. In this case, the battery has nothing to do with it. It’s easy to check.

  • Turn off the laptop, unplug the power supply.
  • Take out the battery, insert the plug of the power supply.
  • Plug the power supply into a power outlet.
  • Press the power button.

If after that the laptop does not work, then the power supply or its cord is out of order. Also, an old power supply may not provide enough current to operate the laptop and charge its battery at the same time. Such a device must be replaced.

Method 1. reset battery settings in BIOS

  • Disconnect the power supply. Unplug or unplug the AC adapter from the device.
  • Take out the battery. In models with a removable battery, and there are most of them, for this it is enough just to turn the device over and push back one or two locking devices that hold it.
  • Press the power button and hold it in this state for about a minute.
  • Insert the plug of the power supply into the laptop and connect it to the mains. In this case, you do not need to install the battery in place yet.
  • Turn on the laptop and enter its BIOS. To do this, at startup, press the key or their combination indicated in your user manual. Typical solutions: Del, F12 or F2.
  • Reset settings to preset value, Restore Defauts, and save BIOS settings, Save and Exit.
  • Turn off the laptop by holding the power button for 5-7 seconds.
  • Turn off the power supply again and replace the battery.
  • Insert the charging plug and turn on the power supply into the outlet.
  • We turn on the laptop in the usual way.

If the method worked, then we should see a message from the system by hovering the mouse over the tray icon: the battery is connected and charging.

Problem: The laptop battery has stopped charging

It happens that a device that used to charge normally stopped doing it at some point. The laptop is working and the battery is connected correctly but not charging. This is confirmed by the absence of an inscription when you hover the mouse over the battery status icon in the tray. There are three ways to solve the problem.