How to Change Low Battery Threshold in Regedit

This guide explains how to configure the low battery percentage threshold in Windows using the Registry Editor. Adjusting this value determines the exact battery level percentage at which the operating system triggers automated low battery actions, such as notifications, sleep, or hibernation. Modifying these registry keys allows system-wide policy enforcement across your active power configuration profiles.

Step 1: Open the Registry Editor

1. Press Win + R to launch the Run dialog box.
2. Type regedit and press Enter.
3. Click Yes if prompted by User Account Control (UAC).

Step 2: Navigate to the Active Power Scheme

In the Registry Editor address bar, paste the following path and press Enter:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\User\PowerSchemes

Under PowerSchemes, locate your active power plan GUID. If you are using the default Balanced plan, look for the folder labeled 381b4222-f694-41f0-9685-ff5bb260df2e.

Step 3: Locate the Low Battery Level Key

Expand your active power plan key and navigate through the following subkeys:

1. Click on the Battery Subgroup GUID: e73a048d-bf27-4f12-9731-8b2076e88088
2. Click on the Low Battery Level Setting GUID: 8183ba9a-7682-4109-9813-8d57577e8703

The full path should read: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\User\PowerSchemes\[Active_Plan_GUID]\e73a048d-bf27-4f12-9731-8b2076e88088\8183ba9a-7682-4109-9813-8d57577e8703

Step 4: Modify the Threshold Value

In the right pane of the 8183ba9a-7682-4109-9813-8d57577e8703 folder, you will see the configuration values:

• DCSettingIndex: Represents the battery threshold when running on battery power.
• ACSettingIndex: Represents the battery threshold when plugged into AC power.

To change the on-battery trigger: 1. Double-click DCSettingIndex. 2. Under Base, select the Decimal radio button. 3. In the Value data field, enter the desired percentage threshold (for example, 15 for 15%). 4. Click OK to save the changes.

Repeat this process for ACSettingIndex if you also want to modify the threshold while the device is connected to a charger.

Step 5: Apply the Changes

Close the Registry Editor. The new threshold takes effect immediately for the active power plan, though restarting the computer ensures all background power management services refresh their configurations.