How to test the condition of HP HS04 laptop battery

The battery in a laptop computer is designed to provide dependable power; however, all rechargeable notebook batteries gradually lose their capacity to hold a charge. Batteries made of different materials have different lifecycles. For instance, with moderate use, Li-Ion laptop batteries are expected to deliver around 80% of their original capacity after 300 charge cycles or about one year of use. This loss in battery capacity (aging) is normal and irreversible.

The maximum capacity of a notebook battery changes over time. Because of this change in battery capacity, the charge level indicator in Windows might not show 100% charged. To know the condition of your battery, use the steps in this document to test your HP HS03 battery and calibrate it if necessary. Calibrating the battery resets the battery gauge to accurately display the charge level in Windows. In this document, two methods of testing and calibrating the battery are explained. Also, a manual method for calibrating the battery is presented.

How to Test the condition of an HP HS03, HS04 notebook battery

HP provides a battery check tool you can use to test your battery before ordering a new replacement laptop battery.

Test the battery using HP Hardware Diagnostics

HP provides diagnostic software you can use to test hardware components on your computer and confirm hardware failures. The Battery Test checks your system to make sure the battery is functioning properly. Use the following instructions to test the battery:

1. Turn on the computer.
2. Search for HP PC Hardware Diagnostics Windows, right-click the app in the search results, and then select Run as administrator. If the app is not installed on your HP laptop, download the latest version.
3. Click Component Tests in the main menu.
4. In the list of Component Tests, click Power.
5. Select Battery Check, and then click Run once.
6. Wait while the test is in progress. The HP HS04 Laptop Battery Test takes about two minutes.
7. Click Finish on the Component Tests page.
8. Select Test Logs to see the results of the battery test.

When the testing is done, review the test logs that display for the status or condition of the battery.

• If your battery passed, click Main Menu or click Details for more information.
• If your battery failed, continue with these steps.