How to know when to replace your laptop’s battery on Windows 10

When your laptop isn't holding charge, it might be time to replace the battery — Here's how to find out on Windows 10.

Laptop battery report on Windows 10

If you’re finding yourself plugging your Windows 10 laptop to a power outlet every few hours while doing work, something is definitely not working correctly.

The reason a battery dies quickly is typically the battery itself, as laptop batteries will only last an amount of charge cycles. This means that if you’ve already tried lowering the brightness of your display, disabling your Wi-Fi connection, limit your video watching, and closing apps, and your laptop can’t still hold its charge, it might be just the time to replace the battery.

On Windows 10, you can quickly find out if it’s time to replace your battery by generating a battery report.

In this guide, you’ll learn the steps to use the powercfg command-line tool to generate a report to find out if it’s time to replace your laptop’s battery.

How to generate a battery report on Windows 10

  1. Open Start.

  2. Search for Command Prompt, right-click the result, and click Run as administrator.

  3. Type the following command to generate a battery report and press Enter:

    powercfg /batteryreport
    Powercfg batteryreport command
    Powercfg batteryreport command

    After running the command you’ll also get a message indicating the location of the report.

  4. Double-click the battery-report.html file which will open on your default web browser.

The battery report that Windows 10 generates has a lot of information, including basic battery information like make and model. Battery capacity history that shows how the battery depleted over time. And battery life estimates, which tells you how long your battery will last in its current condition.

However, the most important data is the “design capacity” and “full charge capacity”.

When to replace your laptop’s battery

The “design capacity” tells you how much charge it could hold when the battery is brand-new. In contrast, “full charge capacity” shows how much charge the battery can hold in its current stage.

For example, my report shows that my laptop’s battery capacity was design to hold 91,000 mWh, but now after a few years the full charge capacity is 67,170 mWh. This means that the battery can still hold up to 73% of its original capacity when fully change, which suggests the battery is still in good condition. However, if the full charge capacity is significantly lower, it might just be time to replace the battery.

Windows 10 battery report
Windows 10 battery report

Replacing your laptop’s battery isn’t very difficult, but it’ll depended upon the type of laptop you have. On many laptops, you can simply use a button to pop the battery out and insert the new one. However, on ultrathin laptops, such as the Dell XPS 13, Lenovo Yoga 910, Asus ZenBook 3, and others, the battery comes built-in, and it’s not simple to replace it.

You should always contact your manufacturer, as your device may still under warranty, and they might able to replace it at no extra cost. If your device isn’t under warranty, but they can offer a good deal, you should consider it.

If you’re planning to replace your laptop’s battery yourself, make sure to replace it with a genuine battery replacement.

About the author

Mauro Huculak is a Windows expert and the Editor-in-Chief who started Pureinfotech in 2010 as an independent online publication. He is also been a Windows Central contributor for nearly a decade. Mauro has over 12 years of experience writing comprehensive guides and creating professional videos about Windows, software, and related technologies, including Android and Linux. Before becoming a technology writer, he was an IT administrator for seven years. In total, Mauro has over 20 years of combined experience in technology. Throughout his career, he achieved different professional certifications from Microsoft (MSCA), Cisco (CCNP), VMware (VCP), and CompTIA (A+ and Network+), and he has been recognized as a Microsoft MVP for many years. You can follow him on X (Twitter), YouTube, LinkedIn and