diff --git a/res/values/strings.xml b/res/values/strings.xml
index 9b1cdb26942..ebe641e4657 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -6369,6 +6369,8 @@
     <string name="battery_usage_for_total_time">Total: <xliff:g id="time">%s</xliff:g></string>
     <!-- [CHAR_LIMIT=NONE] Battery usage item for background usage time -->
     <string name="battery_usage_for_background_time">Background: <xliff:g id="time">%s</xliff:g></string>
+    <!-- [CHAR_LIMIT=NONE] Battery usage main screen footer contentt -->
+    <string name="battery_usage_screen_footer">Battery usage data is approximate</string>
     <!-- Process Stats strings -->
     <skip />
 
diff --git a/res/xml/power_usage_advanced.xml b/res/xml/power_usage_advanced.xml
index d32611ce969..fb142d32405 100644
--- a/res/xml/power_usage_advanced.xml
+++ b/res/xml/power_usage_advanced.xml
@@ -28,4 +28,8 @@
         android:key="app_list"
         android:title="@string/power_usage_list_summary"/>
 
+    <com.android.settingslib.widget.FooterPreference
+        android:title="@string/battery_usage_screen_footer"
+        android:selectable="false"
+        settings:searchable="false"/>
 </PreferenceScreen>