How can I fix my laptop battery?

Step 1: Check the Battery Health
Before attempting to fix a laptop battery, it’s important to first check the battery’s health. This will give you an idea of whether the battery is actually the problem, or if there may be other issues at play. To check the battery health, follow these steps:

Open the “Control Panel” on your laptop and go to the “Power Options” section.
Select the “Battery” tab and then click on “Battery Health”.
This will display the current health of your battery, along with any potential issues that may be impacting its performance.
Step 2: Calibrate the Battery
If the battery health check reveals that the battery is not performing optimally, the next step is to try and calibrate it. Calibrating a battery involves fully charging it and then letting it drain completely, which can help to improve its overall performance. To calibrate a laptop battery, follow these steps:

Plug your laptop into a power source and let it charge until the battery is fully charged.
Once the battery is fully charged, unplug the laptop and use it until it completely drains the battery. This can take several hours, so it’s best to do this overnight or when you won’t need to use your laptop for an extended period of time.
Once the battery is fully drained, plug the laptop back in and let it charge until the battery is fully charged again.
Repeat this process a few times to help calibrate the battery and improve its performance.
Step 3: Update the BIOS and Device Drivers
Sometimes, issues with a laptop battery can be caused by outdated BIOS or device drivers. These are the software programs that help your laptop operate smoothly and efficiently. To ensure that your BIOS and device drivers are up to date, follow these steps:

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Go to the website of your laptop’s manufacturer and search for the latest BIOS and device driver updates.
Download and install the updates, following the instructions provided by the manufacturer.
Restart your laptop and check to see if the battery performance has improved.
Step 4: Replace the Battery
If the steps above do not improve the performance of your laptop battery, the next step is to consider replacing it. Over time, laptop batteries can wear out and lose their ability to hold a charge, which can impact the overall performance of the laptop. If this is the case, you will need to purchase a new battery and replace the old one. To do this, follow these steps:

Shut down your laptop and unplug it from any power source.
Remove the old battery by following the instructions provided in your laptop’s user manual. This may involve removing screws or pressing a release latch to remove the battery.
Insert the new battery into the laptop, making sure it is securely seated and properly connected.
Close up the laptop and turn it on. The new battery should be detected automatically and begin charging.


At globalanswers, Josie writes content. She is a young woman who is eager to learn and has a keen mind. When it comes to her interests, she enjoys dancing, traveling, and listening to music. The phrase "Enjoy the present and things we do" guides her daily life.

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