diff --git a/res/values/strings.xml b/res/values/strings.xml
index 852e81d..eb6de8d1 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -4493,6 +4493,9 @@
     <!-- Description for battery time left, i.e. 50min Estimated time left. [CHAR LIMIT=80]-->
     <string name="estimated_time_left">Estimated time left</string>
 
+    <!-- Description for charging time left, i.e. 50min Time to full charge. [CHAR LIMIT=80]-->
+    <string name="estimated_charging_time_left">Time to full charge</string>
+
     <!-- Description for estimated time. [CHAR LIMIT=80]-->
     <string name="estimated_time_description">Estimation may change based on usage</string>
 
diff --git a/src/com/android/settings/fuelgauge/BatteryHistoryPreference.java b/src/com/android/settings/fuelgauge/BatteryHistoryPreference.java
index 1a349f7..a1fe849 100644
--- a/src/com/android/settings/fuelgauge/BatteryHistoryPreference.java
+++ b/src/com/android/settings/fuelgauge/BatteryHistoryPreference.java
@@ -60,7 +60,9 @@
         view.itemView.setClickable(true);
         view.setDividerAllowedAbove(true);
         ((TextView) view.findViewById(R.id.charge)).setText(mBatteryInfo.batteryPercentString);
-        ((TextView) view.findViewById(R.id.estimation)).setText(mBatteryInfo.remainingLabel);
+        ((TextView) view.findViewById(R.id.estimation)).setText(
+                mBatteryInfo.remainingLabel != null ?
+                        mBatteryInfo.remainingLabel : mBatteryInfo.statusLabel);
         UsageView usageView = (UsageView) view.findViewById(R.id.battery_usage);
         usageView.findViewById(R.id.label_group).setAlpha(.7f);
         mBatteryInfo.bindHistory(usageView);
diff --git a/src/com/android/settings/fuelgauge/PowerUsageSummary.java b/src/com/android/settings/fuelgauge/PowerUsageSummary.java
index 7b64ddf..e696623 100644
--- a/src/com/android/settings/fuelgauge/PowerUsageSummary.java
+++ b/src/com/android/settings/fuelgauge/PowerUsageSummary.java
@@ -16,6 +16,7 @@
 
 package com.android.settings.fuelgauge;
 
+import android.annotation.StringRes;
 import android.app.Activity;
 import android.content.Context;
 import android.graphics.drawable.Drawable;
@@ -473,15 +474,18 @@
         final TextView timeText = (TextView) mBatteryLayoutPref.findViewById(R.id.time);
         final TextView summary1 = (TextView) mBatteryLayoutPref.findViewById(R.id.summary1);
         final TextView summary2 = (TextView) mBatteryLayoutPref.findViewById(R.id.summary2);
-        final int visible = info.mBatteryLevel != 100 ? View.VISIBLE : View.INVISIBLE;
+        final int visible = info.remainingTimeUs != 0 ? View.VISIBLE : View.INVISIBLE;
+        final int summaryResId = info.mDischarging ?
+                R.string.estimated_time_left : R.string.estimated_charging_time_left;
 
         if (info.remainingTimeUs != 0) {
             timeText.setText(Utils.formatElapsedTime(getContext(),
                     info.remainingTimeUs / 1000, false));
         } else {
-            timeText.setText(info.remainingLabel != null ?
-                    info.remainingLabel : info.batteryPercentString);
+            timeText.setText(info.statusLabel);
         }
+
+        summary1.setText(summaryResId);
         summary1.setVisibility(visible);
         summary2.setVisibility(visible);
         batteryView.setBatteryInfo(info.mBatteryLevel);
diff --git a/tests/robotests/src/com/android/settings/fuelgauge/PowerUsageSummaryTest.java b/tests/robotests/src/com/android/settings/fuelgauge/PowerUsageSummaryTest.java
index f828238..ec850cd 100644
--- a/tests/robotests/src/com/android/settings/fuelgauge/PowerUsageSummaryTest.java
+++ b/tests/robotests/src/com/android/settings/fuelgauge/PowerUsageSummaryTest.java
@@ -65,8 +65,7 @@
     private static final String TIME_LEFT = "2h30min";
     private static final int UID = 123;
     private static final int POWER_MAH = 100;
-    private static final int BATTERY_LEVEL_FULL = 100;
-    private static final int BATTERY_LEVEL_HALF = 50;
+    private static final long REMAINING_TIME_US = 100000;
     private static final double BATTERY_SCREEN_USAGE = 300;
     private static final double BATTERY_SYSTEM_USAGE = 600;
     private static final double PRECISION = 0.001;
@@ -269,25 +268,41 @@
     }
 
     @Test
-    public void testUpdatePreference_BatteryFull_DoNotShowSummary() {
-        mBatteryInfo.mBatteryLevel = BATTERY_LEVEL_FULL;
+    public void testUpdatePreference_NoEstimatedTime_DoNotShowSummary() {
+        mBatteryInfo.remainingTimeUs = 0;
         mBatteryInfo.remainingLabel = TIME_LEFT;
         mPowerUsageSummary.updateHeaderPreference(mBatteryInfo);
 
         verify(mSummary1).setVisibility(View.INVISIBLE);
         verify(mSummary2).setVisibility(View.INVISIBLE);
-        verify(mTimeText).setText(mBatteryInfo.remainingLabel);
     }
 
     @Test
-    public void testUpdatePreference_BatteryNotFull_ShowSummary() {
-        mBatteryInfo.mBatteryLevel = BATTERY_LEVEL_HALF;
+    public void testUpdatePreference_HasEstimatedTime_ShowSummary() {
+        mBatteryInfo.remainingTimeUs = REMAINING_TIME_US;
         mBatteryInfo.remainingLabel = TIME_LEFT;
         mPowerUsageSummary.updateHeaderPreference(mBatteryInfo);
 
         verify(mSummary1).setVisibility(View.VISIBLE);
         verify(mSummary2).setVisibility(View.VISIBLE);
-        verify(mTimeText).setText(mBatteryInfo.remainingLabel);
+    }
+
+    @Test
+    public void testUpdatePreference_Charging_ShowChargingTimeLeft() {
+        mBatteryInfo.remainingTimeUs = REMAINING_TIME_US;
+        mBatteryInfo.mDischarging = false;
+
+        mPowerUsageSummary.updateHeaderPreference(mBatteryInfo);
+        verify(mSummary1).setText(R.string.estimated_charging_time_left);
+    }
+
+    @Test
+    public void testUpdatePreference_NotCharging_ShowTimeLeft() {
+        mBatteryInfo.remainingTimeUs = REMAINING_TIME_US;
+        mBatteryInfo.mDischarging = true;
+
+        mPowerUsageSummary.updateHeaderPreference(mBatteryInfo);
+        verify(mSummary1).setText(R.string.estimated_time_left);
     }
 
     public static class TestFragment extends PowerUsageSummary {