Best Free Tools to Check Laptop Battery Health

If your laptop's battery is not lasting as long as it used to, you are not alone. Many users experience this after using their laptop for a few years. While there are ways to extend your laptop's battery life and slow down battery wear, it is equally important to check its battery health regularly. Doing so can help you understand its current condition, decide whether it's time for a replacement, and even adopt better charging habits to improve its lifespan.

In this guide, we have listed some laptop battery diagnostic tools for Windows and MacBooks, such as Windows Battery Report, BatteryInfoView, coconutBattery, and more, that will help users check battery capacity, wear level, charge cycles, and overall health, all for free.

Why It Matters

It is very important to know your laptop's overall battery health because it can help you avoid unexpected battery problems. With these free tools, users can easily track their laptop's battery wear, understand how much charge the battery can still hold, and decide whether they need to change their charging habits or consider replacing the battery.

Best Laptop Battery Health Tools for Free

1. Windows Battery Report

Windows Battery Report is an inbuilt tool and is touted as a reliable way to check a laptop's overall battery health. It is free to use and does not require any downloads or installations.

Here's how to use it:

• Open Command Prompt or PowerShell.

• Type the following command and press Enter: powercfg /batteryreport

• Windows will create an HTML file (usually saved in your user folder, e.g., C:\Users\YourName\battery-report.html).

• Open the file in any web browser.

What you will see:

Design capacity, full charge capacity, cycle count, battery usage history, estimated battery life.

How to calculate battery health:

Divide Full Charge Capacity by Design Capacity and multiply by 100.

Example: If the Design Capacity is 50,000 mWh and the Full Charge Capacity is 42,000 mWh, the battery health is 84 percent.

Note: This is an inbuilt Windows command and does not require downloading any third-party battery monitoring software.

2. BatteryInfoView (NirSoft)

BatteryInfoView is one of the best free third-party tools for checking laptop battery health on Windows. It requires no installation and presents battery data in a clean and easy-to-read format.

Here's how to use it:

• Go to the official NirSoft website (nirsoft.net).

• Download the BatteryInfoView ZIP file (preferably the 64-bit version).

• Extract the file and double-click BatteryInfoView.exe.

• The tool will open and immediately display detailed battery information.

What you will see:

Design capacity, full charge capacity, battery wear level, voltage, charge/discharge rate, manufacturer details.

How to calculate health:

Divide Full Charge Capacity by Design Capacity and multiply by 100.

Note: Users must download BatteryInfoView only from the official NirSoft website (nirsoft.net) to avoid third-party sites that may bundle unwanted software. The tool does not install anything on your system.

3. HWMonitor (CPUID)

HWMonitor is a free hardware monitoring tool that also provides useful battery health information. Along with temperatures, voltages, and fan speeds, it clearly shows your laptop's battery wear level.

Here's how to use it:

• Go to the official CPUID website (cpuid.com).

• Download the free version of HWMonitor.

• Install or run the program.

• Look for the Battery section in the list of sensors.

What you will see:

Battery wear level, current charge level, voltage.

How to check health:

The Wear Level percentage directly indicates how much capacity the battery has lost. A lower wear level means a healthier battery.

Note: Users must download only from the official CPUID website to ensure they get the clean, safe version of the software.

4. HWiNFO

HWiNFO is a also free hardware information and monitoring tool that provides detailed battery health data. It is more comprehensive than most other free utilities and is highly regarded for accurate system reporting.

Here's how to use it:

• Go to the official HWiNFO website (hwinfo.com).

• Download the free version.

• Run the program and choose Sensors view.

• Scroll to the Battery section.

What you will see:

Design capacity, full charge capacity, wear level, voltage, charge/discharge rate.

How to calculate health:

Divide Full Charge Capacity by Design Capacity and multiply by 100.

Note: Users must download only from the official HWiNFO website (hwinfo.com) to avoid unofficial or modified versions.

5. coconutBattery

coconutBattery is a free tool for checking battery health on MacBooks. It provides clear and detailed information about your Mac's battery in a simple interface.

Here's how to use it:

• Go to the official coconutBattery website (coconut-flavour.com).

• Download the free version of the app.

• Open the application after installation.

• The battery health details will appear immediately.

What you will see:

Battery health percentage, design capacity, full charge capacity, cycle count, temperature.

How to calculate health:

The app already shows the battery health percentage. You can also manually calculate it by dividing Full Charge Capacity by Design Capacity and multiplying by 100.

Note: Users must download only from the official website (coconut-flavour.com) to ensure they get the genuine free version.

Frequently Asked Questions

Next Steps

After checking your laptop's battery health, it is advised to monitor its performance over the next few weeks. If the battery continues to drain quickly or the health has dropped significantly, consider replacing it. Or else, adopt good charging habits and avoid excessive heat to help extend your battery's lifespan.

You can also read our guides on choosing the right laptop bag and cleaning and maintaining your laptop bag. Along with that, there are easy to understand guides on when to repair or replace a laptop, how to extend your laptop's lifespan, set up a new laptop correctly, and improve your device's security with free antivirus tools and essential security tips.

And if you're thinking about replacing your current device, don't miss our picks for the best convertible,  business, gaming, creator, and travel-friendly laptops, along with our MacBook Air vs Windows ultrabooks comparison.

Disclaimer: Battery health readings may vary depending on your laptop model, operating system, and battery condition. Always download third-party tools only from their official websites and refer to your laptop manufacturer's recommendations before replacing the battery.