1. Open HPSupportAssistant and click "My Computer";
2. Click to enter "Diagnostic Procedures and Tools"-"HP Battery Inspection";
3. Start the battery test;
4. After the test is completed, the test results will be displayed. Some models with spare batteries will show the specific situation. If not, it will be in a gray state. Click Show Advanced Information;
5. The battery parameters will be described in more detail, in which the state of the main battery is normal. If you want to see other status, you can click "About" below;
6. There are some reference information about battery testing and explanations of common problems.
The above is the specific usage of HP notebook to check HP battery through its own HPSupportAssistant tool.