The Laptop Battery Says 100 But Dies When Unplugged [Causes & Fix]


Is it making you wonder why your laptop shut down when you unplugged the charging cable, despite the fact that it was fully charged? Most likely, the machine’s battery is dead. This is usually an indication that the battery needs to be replaced.

However, this is not the only reason for the problem, as there are numerous others. In this article, we will discuss various issues that affect the condition of your laptop and how to resolve them in a 100 percent guaranteed way.

Therefore, stick with us until the end to discover the best solution to the problem “laptop battery says 100 but dies when unplugged.” Now, without further ado, let us dive deep into this.

In order to figure out what’s wrong with the battery

Here Are Some Steps:

To troubleshoot battery issues, you must connect your laptop to an external power source via the power cable included with the laptop. Then leave your computer overnight to allow it ample time to charge. After that, unplug your laptop, access the battery icon in the desktop mode of your laptop, and check the battery percentage. If the battery gauge reads 0%, this indicates that power is not reaching the battery and it is truly dead.

#1: Adjust the power settings

Occasionally, the Asus laptop will shut down when unplugged. This can be caused by insufficient power management settings. To resolve this issue, modify the power settings as described below.

Step 1. In the search menu, type power plan and then select Edit Power Plan from the Best match.

Step 2: Go to the bottom of the window and click the Change advanced power settings link.

Step 3. Expand the Processor power management section by scrolling down.

Step 4: Expand the Maximum processor state category and lower the threshold to 20%.

Step 5. Expand the Display category, click Enable adaptive brightness, and then toggle it to On. Following that, click the OK and Apply buttons to save your changes.

Now, you can determine if your laptop’s battery is 100 percent charged but dies when unplugged.

#2: Uninstall and reinstall Battery Drivers

Reinstalling the battery drivers is another option. If you disconnect the power cable, the defective drivers may cause your machine to shut down. The steps for reinstalling the drivers are listed below.

  • 1. To launch the program, type “Device Manager” in the start menu.
  • 2. Increase the number of “batteries”
  • 3. Right-click all ASPI options now.
  • 4. Select “uninstall” as the next step.
  • 5. Once uninstalled, restart your system.

#3: Utilize the Power Troubleshooter

Windows 10 includes a troubleshooter that can assist you in identifying and resolving battery-related issues. To troubleshoot a laptop that shuts down when unplugged, follow the steps below.

Step 1. To open the Settings app, press the Win + I keys and navigate to the Update & Security section.

Step 2. From the left pane, select Troubleshooter; then, from the right sidebar, scroll down to the Power section and click on Run the Troubleshooter.

Step 3. This troubleshooter will then automatically detect and resolve battery-related issues.

You can now check to see if your laptop powers down when unplugged.

#4: Reset your laptop

By reducing the amount of power stored in the hardware, you can resolve a number of issues with your PC. That is, you must perform a hard reset or a power reset. The instructions are provided below to assist you.

  • 1. Turn off your laptop.
  • 2. Hold down the power button until the machine shuts down.
  • 3. Unplug all other devices that are connected to your laptop.
  • 4. Disconnect the power cord.
  • 5. Ensure that the battery pack is removed.
  • 6. The power light will begin to flash.
  • 7. Turn on your computer by reconnecting the power cord.

It’s always a good idea to repair an overheating laptop for the sake of your battery.

Prior to replacing your battery, the following steps should be taken:

Prior to purchasing a new battery, you must give your old one a final chance. It could be a problem with the connection between the battery and the adapter. When your laptop attempts to charge the battery, the battery does not charge, and your laptop believes there is no battery and is therefore operating on battery power alone.

When you install a new battery, it must be charged, and your computer will begin to operate without being plugged in. After a while, you will encounter the same issue when the new battery requires charging. Therefore, follow these steps to give your old battery one final chance.

  • Step 1: Remove the battery and hold the power button for 30 seconds to neutralize the static energy in your laptop.
  • Step 2: While the battery is still removed, connect the adapter and power it on. Your laptop resumes normal operation.
  • Step 3: After turning on the laptop, the most difficult step is to insert the battery. Your computer will now detect the battery and begin charging properly. We’re hoping this hack works.

Replacing the battery

If your laptop’s battery dies inexorably after unplugging it, the only option is to replace it. Therefore, replace the battery with a new one using the battery’s model number and the model number of your laptop.

Due to the fact that laptop batteries degrade over time, battery failure is a serious issue. Your laptop will shut down abruptly without allowing you to save your work. Additionally, a laptop battery that is five years old must be replaced with a new one. Otherwise, you will encounter a variety of battery timing issues.

The Most Effective Laptop Batteries

No matter how well you take care of a laptop’s battery, it will eventually die. Therefore, it is preferable to replace the battery before it dies. In any case, battery deaths appear to be unexpected, and you will receive no notification when your laptop’s battery runs out. The only solution is to replace the battery in your dead laptop.

Furthermore, if your laptop’s battery is serviceable, you can manually remove and replace it. While using a non-serviceable battery, you should contact the manufacturer to arrange for the laptop’s case to be opened and the battery replaced.

If your battery is serviceable, you can order a replacement battery online. Choose no random product or the cheapest third-party batteries. They are constructed using substandard and insufficient testing methods. They can be dangerous and may catch fire. Purchase only genuine batteries from a reputable company. The following is a list of the best replacement batteries from well-known brands. You may select any of them to suit your needs.


The fact that you are using your computer while it is plugged in means that there is no problem with the charger adapter. If you need to change your laptop’s battery, it would be a good idea to do so. Perhaps you should power down your laptop and unscrew the screws on the back cover before gently raising the lid upward.

However, If changing the batteries does not solve the problem, it could be a problem with the wires inside your laptop. If that’s the case, immediately return your laptop or visit a nearby electronics shop for assistance.


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