diff --git a/res/layout/battery_chart_graph.xml b/res/layout/battery_chart_graph.xml
index 18e650ce1d4..1896b78d016 100644
--- a/res/layout/battery_chart_graph.xml
+++ b/res/layout/battery_chart_graph.xml
@@ -36,6 +36,7 @@
         android:layout_width="match_parent"
         android:layout_height="165dp"
         android:layout_marginBottom="16dp"
+        android:visibility="invisible"
         android:textAppearance="?android:attr/textAppearanceSmall"
         settings:textColor="?android:attr/textColorSecondary" />
     <TextView
diff --git a/res/xml/power_usage_advanced.xml b/res/xml/power_usage_advanced.xml
index fb142d32405..fc6c0fff883 100644
--- a/res/xml/power_usage_advanced.xml
+++ b/res/xml/power_usage_advanced.xml
@@ -25,8 +25,7 @@
         android:key="battery_graph"/>
 
     <PreferenceCategory
-        android:key="app_list"
-        android:title="@string/power_usage_list_summary"/>
+        android:key="app_list"/>
 
     <com.android.settingslib.widget.FooterPreference
         android:title="@string/battery_usage_screen_footer"
diff --git a/src/com/android/settings/fuelgauge/BatteryAppListPreferenceController.java b/src/com/android/settings/fuelgauge/BatteryAppListPreferenceController.java
index 707a04b9d8a..891b6d69e2a 100644
--- a/src/com/android/settings/fuelgauge/BatteryAppListPreferenceController.java
+++ b/src/com/android/settings/fuelgauge/BatteryAppListPreferenceController.java
@@ -167,6 +167,7 @@ public class BatteryAppListPreferenceController extends AbstractPreferenceContro
         super.displayPreference(screen);
         mPrefContext = screen.getContext();
         mAppListGroup = screen.findPreference(mPreferenceKey);
+        mAppListGroup.setTitle(mPrefContext.getString(R.string.power_usage_list_summary));
     }
 
     @Override
diff --git a/src/com/android/settings/fuelgauge/BatteryChartView.java b/src/com/android/settings/fuelgauge/BatteryChartView.java
index e2e7f8f7519..ac71812fbd2 100644
--- a/src/com/android/settings/fuelgauge/BatteryChartView.java
+++ b/src/com/android/settings/fuelgauge/BatteryChartView.java
@@ -33,6 +33,7 @@ import android.widget.TextView;
 import androidx.appcompat.widget.AppCompatImageView;
 
 import com.android.settings.R;
+import com.android.settings.overlay.FeatureFactory;
 import com.android.settingslib.Utils;
 
 import java.util.Locale;
@@ -59,6 +60,8 @@ public class BatteryChartView extends AppCompatImageView implements View.OnClick
     private int mSelectedIndex;
     private float mTrapezoidVOffset;
     private float mTrapezoidHOffset;
+    private boolean mIsSlotsClickable;
+
     // Colors for drawing the trapezoid shape and dividers.
     private int mTrapezoidColor;
     private int mTrapezoidSolidColor;
@@ -73,7 +76,6 @@ public class BatteryChartView extends AppCompatImageView implements View.OnClick
     private final Rect[] mTimestampsBounds =
         new Rect[] {new Rect(), new Rect(), new Rect(), new Rect()};
 
-
     private int[] mLevels;
     private Paint mTextPaint;
     private Paint mDividerPaint;
@@ -92,9 +94,9 @@ public class BatteryChartView extends AppCompatImageView implements View.OnClick
         initializeColors(context);
         // Registers the click event listener.
         setOnClickListener(this);
-        setClickable(false);
         setSelectedIndex(SELECTED_INDEX_ALL);
         setTrapezoidCount(DEFAULT_TRAPEZOID_COUNT);
+        setClickable(false);
     }
 
     /** Sets the total trapezoid count for drawing. */
@@ -157,6 +159,7 @@ public class BatteryChartView extends AppCompatImageView implements View.OnClick
         } else {
             mTextPaint = null;
         }
+        setVisibility(View.VISIBLE);
         requestLayout();
     }
 
@@ -240,6 +243,23 @@ public class BatteryChartView extends AppCompatImageView implements View.OnClick
         view.performHapticFeedback(HapticFeedbackConstants.CONTEXT_CLICK);
     }
 
+    @Override
+    public void onAttachedToWindow() {
+        super.onAttachedToWindow();
+        final Context context = mContext;
+        mIsSlotsClickable =
+            FeatureFactory.getFactory(context)
+                .getPowerUsageFeatureProvider(context)
+                .isChartGraphSlotsEnabled(context);
+        Log.d(TAG, "isChartGraphSlotsEnabled:" + mIsSlotsClickable);
+        setClickable(isClickable());
+    }
+
+    @Override
+    public void setClickable(boolean clickable) {
+        super.setClickable(mIsSlotsClickable && clickable);
+    }
+
     private void initializeColors(Context context) {
         setBackgroundColor(Color.TRANSPARENT);
         mTrapezoidSolidColor = Utils.getColorAccentDefaultColor(context);
diff --git a/src/com/android/settings/fuelgauge/ConvertUtils.java b/src/com/android/settings/fuelgauge/ConvertUtils.java
index fc58e501af5..37f9e1212b4 100644
--- a/src/com/android/settings/fuelgauge/ConvertUtils.java
+++ b/src/com/android/settings/fuelgauge/ConvertUtils.java
@@ -214,13 +214,11 @@ public final class ConvertUtils {
                         currentEntry.mBackgroundUsageTimeInMs,
                         nextEntry.mBackgroundUsageTimeInMs,
                         nextTwoEntry.mBackgroundUsageTimeInMs);
-                final double consumePower =
+                double consumePower =
                     getDiffValue(
                         currentEntry.mConsumePower,
                         nextEntry.mConsumePower,
                         nextTwoEntry.mConsumePower);
-                totalConsumePower += consumePower;
-
                 // Excludes entry since we don't have enough data to calculate.
                 if (foregroundUsageTimeInMs == 0
                         && backgroundUsageTimeInMs == 0
@@ -246,7 +244,9 @@ public final class ConvertUtils {
                         Math.round(foregroundUsageTimeInMs * ratio);
                     backgroundUsageTimeInMs =
                         Math.round(backgroundUsageTimeInMs * ratio);
+                    consumePower = consumePower * ratio;
                 }
+                totalConsumePower += consumePower;
                 batteryDiffEntryList.add(
                     new BatteryDiffEntry(
                         context,
@@ -260,10 +260,10 @@ public final class ConvertUtils {
                 diffEntry.setTotalConsumePower(totalConsumePower);
             }
         }
+        insert24HoursData(BatteryChartView.SELECTED_INDEX_ALL, resultMap);
         if (purgeLowPercentageAndFakeData) {
             purgeLowPercentageAndFakeData(resultMap);
         }
-        insert24HoursData(BatteryChartView.SELECTED_INDEX_ALL, resultMap);
         return resultMap;
     }
 
diff --git a/src/com/android/settings/fuelgauge/PowerUsageFeatureProvider.java b/src/com/android/settings/fuelgauge/PowerUsageFeatureProvider.java
index 7b97bdf6f76..61abe6b1fbf 100644
--- a/src/com/android/settings/fuelgauge/PowerUsageFeatureProvider.java
+++ b/src/com/android/settings/fuelgauge/PowerUsageFeatureProvider.java
@@ -132,6 +132,11 @@ public interface PowerUsageFeatureProvider {
      */
     boolean isChartGraphEnabled(Context context);
 
+    /**
+     * Checks whether we should show usage information by slots or not.
+     */
+    boolean isChartGraphSlotsEnabled(Context context);
+
     /**
      * Returns battery history data with corresponding timestamp key.
      */
diff --git a/src/com/android/settings/fuelgauge/PowerUsageFeatureProviderImpl.java b/src/com/android/settings/fuelgauge/PowerUsageFeatureProviderImpl.java
index b9f225b92f4..1dcdab08be5 100644
--- a/src/com/android/settings/fuelgauge/PowerUsageFeatureProviderImpl.java
+++ b/src/com/android/settings/fuelgauge/PowerUsageFeatureProviderImpl.java
@@ -158,6 +158,11 @@ public class PowerUsageFeatureProviderImpl implements PowerUsageFeatureProvider
         return false;
     }
 
+    @Override
+    public boolean isChartGraphSlotsEnabled(Context context) {
+        return false;
+    }
+
     @Override
     public Map<Long, Map<String, BatteryHistEntry>> getBatteryHistory(Context context) {
         return null;
diff --git a/tests/robotests/src/com/android/settings/fuelgauge/ConvertUtilsTest.java b/tests/robotests/src/com/android/settings/fuelgauge/ConvertUtilsTest.java
index c4341ef91f3..216b118a029 100644
--- a/tests/robotests/src/com/android/settings/fuelgauge/ConvertUtilsTest.java
+++ b/tests/robotests/src/com/android/settings/fuelgauge/ConvertUtilsTest.java
@@ -246,12 +246,10 @@ public final class ConvertUtilsTest {
         assertBatteryDiffEntry(entryList.get(0), 75, 40L, 50L);
         // Verifies the last 24 hours aggregate result.
         entryList = purgedResultMap.get(Integer.valueOf(-1));
-        assertThat(entryList).hasSize(2);
+        assertThat(entryList).hasSize(1);
         // Verifies the fake data is cleared out.
         assertThat(entryList.get(0).getPackageName())
             .isNotEqualTo(ConvertUtils.FAKE_PACKAGE_NAME);
-        assertThat(entryList.get(1).getPackageName())
-            .isNotEqualTo(ConvertUtils.FAKE_PACKAGE_NAME);
     }
 
     @Test
@@ -286,9 +284,14 @@ public final class ConvertUtilsTest {
         final List<BatteryDiffEntry> entryList = purgedResultMap.get(0);
         assertThat(entryList).hasSize(1);
         // Verifies the clipped usage time.
+        final float ratio = (float) (7200) / (float) (3600 + 7200);
         final BatteryDiffEntry resultEntry = entryList.get(0);
-        assertThat(resultEntry.mForegroundUsageTimeInMs).isEqualTo(2400000);
-        assertThat(resultEntry.mBackgroundUsageTimeInMs).isEqualTo(4800000);
+        assertThat(resultEntry.mForegroundUsageTimeInMs)
+            .isEqualTo(Math.round(entry.mForegroundUsageTimeInMs * ratio));
+        assertThat(resultEntry.mBackgroundUsageTimeInMs)
+            .isEqualTo(Math.round(entry.mBackgroundUsageTimeInMs * ratio));
+        assertThat(resultEntry.mConsumePower)
+            .isEqualTo(entry.mConsumePower * ratio);
     }
 
     @Test