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Change Laptop Battery: How To Replace Your Dell Laptop Battery?

Michael Picco
Michael Picco

Technical Director - Energy & Environment

Changing a laptop battery is one of the fastest and easiest ways to renew a laptop computer. Over time, laptop lithium batteries can gradually lose capacity, resulting in shorter battery life and reduced performance. This can be frustrating for users who rely heavily on their laptops. Fortunately, various batteries are available for laptop computers, including Dell laptops, making the replacement process seamless.

How To Check Battery Capacity On Windows?

To check the battery capacity on Windows, you can follow the instructions below:

  • Click on the battery icon in the system tray (usually located in the bottom right corner of the taskbar) or navigate to the “Control Panel” and search for “Power Options.”
  • In the power options, you should see information about your battery, including its current capacity. Look for a section or tab that details your battery’s health or status.
  • Some Windows laptops may also have dedicated software or utilities provided by the manufacturer that offers more detailed information about the battery. Check your laptop manufacturer’s website for any specific battery management tools they provide.

How To Replace Batteries For Laptop Computers?

Changing a laptop battery is a relatively simple process that can be done with a few steps. Here’s a detailed guide on how to replace the battery in your laptop:

  1. Purchase a high-quality replacement battery

A replacement battery from a reputable laptop battery manufacturer like LESY is recommended. Ensure that the battery you choose is compatible with your specific laptop model.

  • Turn off your laptop

Before changing your laptop battery, shut down your laptop completely. This is important to prevent any potential damage or electrical hazards.

  • Remove the laptop’s back plate

Locate your laptop’s back plate or access panel to access the battery compartment. Refer to your laptop’s user manual or manufacturer’s instructions for removing the rear plate. Use a screwdriver or other appropriate tools to carefully remove the screws or latches holding the plate in place.

  • Disconnect the battery’s power connector

You will find the battery and its power connector inside the battery compartment. Gently unplug the power connector from the laptop’s motherboard, ensuring you do not apply excessive force or damage any other components.

  • Drain the battery (if necessary)

To drain the battery, allow your laptop to operate until the battery is completely discharged, or use any built-in battery discharge feature available on your laptop.

  • Change the laptop battery

Carefully remove the old battery from the compartment and replace it with the new battery. Ensure the new battery is properly aligned and fits securely into the container.

  • Reassemble your laptop

Put the back plate or access panel back and secure it with the screws or latches. Ensure the plate is aligned correctly and tightened securely to avoid loose parts.

  • Get connected

After replacing the battery and reassembling your laptop, the last step for changing the laptop battery is connecting it to a power source to initiate the charging process.

By following these steps carefully, you can successfully replace the battery in your laptop and enjoy extended battery life and improved performance.  


Choosing a Trustworthy Laptop Battery Manufacturer Is Important

Welcome to LESY, your trusted source for high-quality batteries for laptop computers! We understand the importance of reliable power solutions for your Dell laptops, and we recommend the perfect LESY batteries for your specific models.

  • Change Internal Laptop Battery 33YDH For Dell 7577

If you own a Dell 7577 laptop, our Internal Laptop Battery 33YDH is your ideal choice. It adapts perfectly to the Dell 7577, Dell 15, Dell G3, and more. This battery is designed to seamlessly integrate with your device, providing excellent compatibility and performance.

  • Change Internal Laptop Battery 3RNFD For Dell Latitude E7440

For Dell Latitude E7440, Dell 451-BBFT, and Dell PFXCR users, we recommend our Internal Laptop Battery 3RNFD. Crafted with precision and engineered to meet the specific requirements of your laptop model, this battery guarantees a seamless fit and outstanding performance.

  • Change External Laptop Battery XCMRD For Dell MR90Y

If you’re looking for an external battery solution for your Dell MR90Y, Dell 14R, and Dell3421, our External Laptop Battery XCMRD is an excellent choice. This portable power pack is designed to complement your Dell laptop, giving you the freedom to work or enjoy entertainment on the move.

At LESY, we prioritize quality and customer satisfaction. Our batteries are built using premium materials and undergo rigorous testing to ensure superior performance, safety, and longevity.


LESY‘s distinctive selling points, such as our commitment to quality, profession, compatibility, reliable performance, and 12-month warranty, make our laptop batteries a compelling choice.

LESY provides more than 800 models of replacement laptop batteries for brands such as HP, Dell, Acer, Lenovo, Asus, MSI, Apple, Fujitsu, ThinkPad, Razer, Xiaomi, Toshiba, Hasee, etc. Explore LESY’s range of products to discover the difference we can make for your laptop’s power needs.

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