Yellow triangle with an exclamation mark on Battery icon
If you notice the yellow triangle, run the Power Troubleshooter. If the tool can fix the issue, then there is no further explanation as to what is causing the issue, follow a different course of action. We have outlined three ways that might help you in this regard. Let us proceed and try these options to get rid of the Laptop battery showing the yellow triangle.
1] Run the Power Troubleshooter
This Power Troubleshooter will automatically troubleshoot Windows power plans and detects your system settings that can affect power usages, such as timeout and sleep settings, display settings, and screensavers, and restore them to their default settings. To run the Power Troubleshooter, open Windows Settings and select ‘Update and Security’ tab. Next, under ‘Update and Security’ heading, look for the ‘Troubleshoot’ option. When found, select the option, scroll down and choose ‘Power’.
Press ‘Run the troubleshooter’ button and wait for few seconds to allow the troubleshooter to detect issues.
After that, follow on-screen directions. If the tool is able to fix the issue well and good; else read on. Read: Laptop Battery Test software & Diagnostic tools
2] Manually restore Defaults for the Power Plan
Open Windows Settings again, select ‘System’ tab and scroll down to locate the ‘Power & Sleep’ option.
Now, in the right-pane, click on the ‘Additional power settings’ to open Power Options.
Next, click ‘Change Plan Settings’ link and choose ‘Restore default settings for this plan’. Read: Laptop Battery indicator icon showing battery as empty in spite of being full
3] Uninstall or Reinstall the Battery Driver
If all the above methods fail to yield the desired results, try this method as a last resort. Before proceeding, shut down your computer, detach the power chord and remove the battery. (If the battery comes fixed, do not remove it). Plug the power chord and reboot your computer. After that, access ‘Device Manager, expand ‘Batteries’, right-click ‘Microsoft ACPI-Compliant System’ and choose ‘Uninstall device’.
Finally, Shutdown the computer > Remove the power chord > Attach your battery > Attach your power chord > Reboot the computer to install the driver automatically. If nothing helps, you may want to check if you need to replace your laptop battery. I hope this fixes your problem.
Fix Yellow triangle warning on C DriveNo Low battery notification in Windows laptop.
