A great little program for troubleshooting notebook batteries is already included in Windows.
I will describe the steps to save a battery report and help you troubleshoot your notebook battery.
- Open command prompt cmd. Windows R and type cmd and enter OR right click on the start button and go to run and type cmd.
- Type powercfg /batteryreport
- The file will be saved, take note where the file has been saved.
- Open the html file by navigating to it
The battery report will give you this info:
- Recent usage information e.g notebook charge times over the last 3 days.
- Notebook start, suspended times and capacity over time.
- Battery details such as brand, design capacity, full charge capacity and cycle count.
- Usage graph showing how the battery drained over time.
Further troubleshooting can be performed by using Batterymon.
Batterymon is free and can diagnose problematic batteries, find the discharge point, compare/measure battery performance and more.
What I usually do is fully charge the notebook, run batterymon and see the battery discharge over time. It will give you an estimate on when the battery will run out of charge.
Click on Info -> Battery information and you can see all of the battery stats in detail e.g Manufacturer, serial, design capacity, full charge capacity, current capacity, charge cycles and more.
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