diff --git a/res/values/strings.xml b/res/values/strings.xml
index adbc1d6..b255123 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -4474,10 +4474,10 @@
     <!-- Title for the cellular network in power use UI(i.e. Mobile network scanning: 30% of battery usage) [CHAR_LIMIT=40] -->
     <string name="device_cellular_network">Mobile network scanning</string>
 
-    <!-- Label for time since last full charge in power use UI, i.e. "7 h 20 min ago" [CHAR_LIMIT=60] -->
-    <string name="power_last_full_charge_summary"><xliff:g id="time">%1$s</xliff:g> ago</string>
-    <!-- Label for list of apps using battery in power use UI [CHAR_LIMIT=120] -->
-    <string name="power_usage_list_summary">App usage since full charge (<xliff:g id="time">%1$s</xliff:g> ago)</string>
+    <!-- Label for time since last full charge in power use UI, i.e. "7 h 20 min ago". Note: ^1 should be used in all translations [CHAR_LIMIT=60] -->
+    <string name="power_last_full_charge_summary"><xliff:g id="time">^1</xliff:g> ago</string>
+    <!-- Label for list of apps using battery in power use UI. Note: ^1 should be used in all translations[CHAR_LIMIT=120] -->
+    <string name="power_usage_list_summary">App usage since full charge (<xliff:g id="time">^1</xliff:g> ago)</string>
     <!-- Description for the screen usage item [CHAR_LIMIT=120] -->
     <string name="screen_usage_summary">Amount of time screen has been on since full charge</string>
     <!-- Label for list of different types using battery in power use UI [CHAR_LIMIT=60] -->
@@ -4676,8 +4676,8 @@
     <!-- Representation of a mAh value. [CHAR LIMIT=NONE] -->
     <string name="mah"><xliff:g id="number" example="30">%d</xliff:g> mAh</string>
 
-    <!-- Description for battery usage time for an app, i.e. Used for 30min. [CHAR LIMIT=60] -->
-    <string name="battery_used_for">Used for %1$s</string>
+    <!-- Description for battery usage time for an app, i.e. Used for 30min. Note: ^1 should be used in all translations [CHAR LIMIT=60] -->
+    <string name="battery_used_for">Used for <xliff:g id="time">^1</xliff:g></string>
     <!-- Description for battery usage info for an app, i.e. 60% used by facebook. [CHAR LIMIT=60] -->
     <string name="battery_used_by"><xliff:g id="percent">%1$s</xliff:g> used by <xliff:g id="app">%2$s</xliff:g></string>
     <!-- Description for percentage of battery usage for an app, i.e. Screen: 30% of overall battery. [CHAR LIMIT=60] -->
diff --git a/src/com/android/settings/Utils.java b/src/com/android/settings/Utils.java
index d04ae8d..f6f980a 100644
--- a/src/com/android/settings/Utils.java
+++ b/src/com/android/settings/Utils.java
@@ -81,6 +81,8 @@
 import android.telephony.TelephonyManager;
 import android.text.Spannable;
 import android.text.SpannableString;
+import android.text.SpannableStringBuilder;
+import android.text.Spanned;
 import android.text.TextUtils;
 import android.text.format.DateUtils;
 import android.text.style.TtsSpan;
@@ -770,8 +772,9 @@
      * @param withSeconds include seconds?
      * @return the formatted elapsed time
      */
-    public static String formatElapsedTime(Context context, double millis, boolean withSeconds) {
-        StringBuilder sb = new StringBuilder();
+    public static CharSequence formatElapsedTime(Context context, double millis,
+            boolean withSeconds) {
+        SpannableStringBuilder sb = new SpannableStringBuilder();
         int seconds = (int) Math.floor(millis / 1000);
         if (!withSeconds) {
             // Round up.
@@ -812,9 +815,15 @@
                         hours, minutes));
             } else {
                 sb.append(context.getString(R.string.battery_history_minutes_no_seconds, minutes));
+
+                // Add ttsSpan if it only have minute value, because it will be read as "meters"
+                TtsSpan ttsSpan = new TtsSpan.MeasureBuilder().setNumber(minutes)
+                        .setUnit("minute").build();
+                sb.setSpan(ttsSpan, 0, sb.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
             }
         }
-        return sb.toString();
+
+        return sb;
     }
 
     /**
@@ -1256,4 +1265,5 @@
         return (volume != null) && (volume.getType() == VolumeInfo.TYPE_PRIVATE)
                 && volume.isMountedReadable();
     }
+
 }
diff --git a/src/com/android/settings/fuelgauge/AdvancedPowerUsageDetail.java b/src/com/android/settings/fuelgauge/AdvancedPowerUsageDetail.java
index a73902a..eede37a 100644
--- a/src/com/android/settings/fuelgauge/AdvancedPowerUsageDetail.java
+++ b/src/com/android/settings/fuelgauge/AdvancedPowerUsageDetail.java
@@ -28,6 +28,7 @@
 import android.support.annotation.VisibleForTesting;
 import android.support.v14.preference.PreferenceFragment;
 import android.support.v7.preference.Preference;
+import android.text.TextUtils;
 import android.view.View;
 
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
@@ -82,6 +83,8 @@
     ApplicationsState mState;
     @VisibleForTesting
     ApplicationsState.AppEntry mAppEntry;
+    @VisibleForTesting
+    BatteryUtils mBatteryUtils;
 
     private Preference mForegroundPreference;
     private Preference mBackgroundPreference;
@@ -137,6 +140,7 @@
                 (DevicePolicyManager) activity.getSystemService(Context.DEVICE_POLICY_SERVICE));
         mUserManager = (UserManager) activity.getSystemService(Context.USER_SERVICE);
         mPackageManager = activity.getPackageManager();
+        mBatteryUtils = BatteryUtils.getInstance(getContext());
     }
 
     @Override
diff --git a/src/com/android/settings/fuelgauge/BatteryUtils.java b/src/com/android/settings/fuelgauge/BatteryUtils.java
index 48e2421..c8af4a0 100644
--- a/src/com/android/settings/fuelgauge/BatteryUtils.java
+++ b/src/com/android/settings/fuelgauge/BatteryUtils.java
@@ -15,14 +15,13 @@
  */
 package com.android.settings.fuelgauge;
 
-import android.annotation.IntDef;
 import android.content.Context;
 import android.content.pm.PackageManager;
 import android.os.BatteryStats;
 import android.os.SystemClock;
+import android.support.annotation.IntDef;
 import android.support.annotation.Nullable;
 import android.support.annotation.VisibleForTesting;
-import android.text.format.DateUtils;
 import android.util.Log;
 
 import com.android.internal.os.BatterySipper;
@@ -64,7 +63,8 @@
         return sInstance;
     }
 
-    private BatteryUtils(Context context) {
+    @VisibleForTesting
+    BatteryUtils(Context context) {
         mPackageManager = context.getPackageManager();
         mPowerUsageFeatureProvider = FeatureFactory.getFactory(
                 context).getPowerUsageFeatureProvider(context);
diff --git a/src/com/android/settings/fuelgauge/PowerGaugePreference.java b/src/com/android/settings/fuelgauge/PowerGaugePreference.java
index bdadf4c..b124c81 100644
--- a/src/com/android/settings/fuelgauge/PowerGaugePreference.java
+++ b/src/com/android/settings/fuelgauge/PowerGaugePreference.java
@@ -79,11 +79,15 @@
         return mProgress.toString();
     }
 
-    public void setSubtitle(String subtitle) {
+    public void setSubtitle(CharSequence subtitle) {
         mProgress = subtitle;
         notifyChanged();
     }
 
+    public CharSequence getSubtitle() {
+        return mProgress;
+    }
+
     BatteryEntry getInfo() {
         return mInfo;
     }
diff --git a/src/com/android/settings/fuelgauge/PowerUsageAdvanced.java b/src/com/android/settings/fuelgauge/PowerUsageAdvanced.java
index b718f8f..28dfe1d 100644
--- a/src/com/android/settings/fuelgauge/PowerUsageAdvanced.java
+++ b/src/com/android/settings/fuelgauge/PowerUsageAdvanced.java
@@ -29,6 +29,7 @@
 import android.support.annotation.VisibleForTesting;
 import android.support.v7.preference.Preference;
 import android.support.v7.preference.PreferenceGroup;
+import android.text.TextUtils;
 
 import com.android.internal.logging.nano.MetricsProto;
 import com.android.internal.os.BatterySipper;
@@ -67,13 +68,15 @@
             UsageType.APP,
             UsageType.UNACCOUNTED,
             UsageType.OVERCOUNTED};
+
+    @VisibleForTesting
+    BatteryUtils mBatteryUtils;
     private BatteryHistoryPreference mHistPref;
     private PreferenceGroup mUsageListGroup;
     private PowerUsageFeatureProvider mPowerUsageFeatureProvider;
     private PackageManager mPackageManager;
     private UserManager mUserManager;
     private Map<Integer, PowerUsageData> mBatteryDataMap;
-    private BatteryUtils mBatteryUtils;
 
     Handler mHandler = new Handler() {
 
@@ -270,8 +273,10 @@
             return;
         }
         if (usageData.usageList.size() <= 1) {
-            usageData.summary = getString(R.string.battery_used_for,
-                    Utils.formatElapsedTime(getContext(), usageData.totalUsageTimeMs, false));
+            CharSequence timeSequence = Utils.formatElapsedTime(getContext(),
+                    usageData.totalUsageTimeMs, false);
+            usageData.summary = TextUtils.expandTemplate(getText(R.string.battery_used_for),
+                    timeSequence);
         } else {
             BatterySipper sipper = findBatterySipperWithMaxBatteryUsage(usageData.usageList);
             BatteryEntry batteryEntry = new BatteryEntry(getContext(), mHandler, mUserManager,
@@ -346,7 +351,7 @@
 
         @StringRes
         public int titleResId;
-        public String summary;
+        public CharSequence summary;
         public double percentage;
         public double totalPowerMah;
         public long totalUsageTimeMs;
diff --git a/src/com/android/settings/fuelgauge/PowerUsageSummary.java b/src/com/android/settings/fuelgauge/PowerUsageSummary.java
index 078a9b3..1bc67af 100644
--- a/src/com/android/settings/fuelgauge/PowerUsageSummary.java
+++ b/src/com/android/settings/fuelgauge/PowerUsageSummary.java
@@ -418,15 +418,16 @@
         final TypedValue value = new TypedValue();
         context.getTheme().resolveAttribute(android.R.attr.colorControlNormal, value, true);
         final int colorControl = context.getColor(value.resourceId);
-        final String usedTime = context.getString(R.string.battery_used_for);
         final int dischargeAmount = USE_FAKE_DATA ? 5000
                 : stats != null ? stats.getDischargeAmount(mStatsType) : 0;
 
         final long runningTime = calculateRunningTimeBasedOnStatsType();
         updateScreenPreference();
         updateLastFullChargePreference(runningTime);
-        mAppListGroup.setTitle(getString(R.string.power_usage_list_summary,
-                Utils.formatElapsedTime(context, runningTime, false)));
+
+        final CharSequence timeSequence = Utils.formatElapsedTime(context, runningTime, false);
+        mAppListGroup.setTitle(
+                TextUtils.expandTemplate(getText(R.string.power_usage_list_summary), timeSequence));
 
         if (averagePower >= MIN_AVERAGE_POWER_THRESHOLD_MILLI_AMP || USE_FAKE_DATA) {
             final List<BatterySipper> usageList = getCoalescedUsageList(
@@ -497,7 +498,7 @@
                     sipper.usageTimeMs = mBatteryUtils.getProcessTimeMs(
                             BatteryUtils.StatusType.FOREGROUND, sipper.uidObj, mStatsType);
                 }
-                setUsageSummary(pref, usedTime, sipper.usageTimeMs);
+                setUsageSummary(pref, sipper.usageTimeMs);
                 if ((sipper.drainType != DrainType.APP
                         || sipper.uidObj.getUid() == Process.ROOT_UID)
                         && sipper.drainType != DrainType.USER) {
@@ -534,16 +535,17 @@
     void updateScreenPreference() {
         final BatterySipper sipper = findBatterySipperByType(
                 mStatsHelper.getUsageList(), DrainType.SCREEN);
-        final Context context = getContext();
         final long usageTimeMs = sipper != null ? sipper.usageTimeMs : 0;
 
-        mScreenUsagePref.setSubtitle(Utils.formatElapsedTime(context, usageTimeMs, false));
+        mScreenUsagePref.setSubtitle(Utils.formatElapsedTime(getContext(), usageTimeMs, false));
     }
 
     @VisibleForTesting
     void updateLastFullChargePreference(long timeMs) {
-        mLastFullChargePref.setSubtitle(getString(R.string.power_last_full_charge_summary,
-                Utils.formatElapsedTime(getContext(), timeMs, false)));
+        final CharSequence timeSequence = Utils.formatElapsedTime(getContext(), timeMs, false);
+        mLastFullChargePref.setSubtitle(
+                TextUtils.expandTemplate(getText(R.string.power_last_full_charge_summary),
+                        timeSequence));
     }
 
     @VisibleForTesting
@@ -583,11 +585,13 @@
     }
 
     @VisibleForTesting
-    void setUsageSummary(Preference preference, String usedTimePrefix, long usageTimeMs) {
+    void setUsageSummary(Preference preference, long usageTimeMs) {
         // Only show summary when usage time is longer than one minute
         if (usageTimeMs >= DateUtils.MINUTE_IN_MILLIS) {
-            preference.setSummary(String.format(usedTimePrefix,
-                    Utils.formatElapsedTime(getContext(), usageTimeMs, false)));
+            final CharSequence timeSequence = Utils.formatElapsedTime(getContext(), usageTimeMs,
+                    false);
+            preference.setSummary(
+                    TextUtils.expandTemplate(getText(R.string.battery_used_for), timeSequence));
         }
     }
 
diff --git a/tests/robotests/src/com/android/settings/UtilsTest.java b/tests/robotests/src/com/android/settings/UtilsTest.java
index 8b7605c..8dfd32a 100644
--- a/tests/robotests/src/com/android/settings/UtilsTest.java
+++ b/tests/robotests/src/com/android/settings/UtilsTest.java
@@ -19,7 +19,10 @@
 import android.os.storage.DiskInfo;
 import android.os.storage.StorageManager;
 import android.os.storage.VolumeInfo;
+import android.text.SpannableString;
+import android.text.SpannableStringBuilder;
 import android.text.format.DateUtils;
+import android.text.style.TtsSpan;
 
 import org.junit.Before;
 import org.junit.Test;
@@ -35,10 +38,14 @@
 @Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)
 public class UtilsTest {
 
+    private static final String TIME_DESCRIPTION = "1 day 20 hours 30 minutes";
     private Context mContext;
-    @Mock private WifiManager wifiManager;
-    @Mock private Network network;
-    @Mock private ConnectivityManager connectivityManager;
+    @Mock
+    private WifiManager wifiManager;
+    @Mock
+    private Network network;
+    @Mock
+    private ConnectivityManager connectivityManager;
 
     @Before
     public void setUp() {
@@ -47,7 +54,7 @@
         mContext = spy(RuntimeEnvironment.application);
         when(mContext.getSystemService(WifiManager.class)).thenReturn(wifiManager);
         when(mContext.getSystemService(Context.CONNECTIVITY_SERVICE))
-            .thenReturn(connectivityManager);
+                .thenReturn(connectivityManager);
     }
 
     @Test
@@ -89,7 +96,8 @@
         final double testMillis = 5 * DateUtils.MINUTE_IN_MILLIS;
         final String expectedTime = "5m 0s";
 
-        assertThat(Utils.formatElapsedTime(mContext, testMillis, true)).isEqualTo(expectedTime);
+        assertThat(Utils.formatElapsedTime(mContext, testMillis, true).toString()).isEqualTo(
+                expectedTime);
     }
 
     @Test
@@ -97,7 +105,8 @@
         final double testMillis = 5 * DateUtils.MINUTE_IN_MILLIS;
         final String expectedTime = "5m";
 
-        assertThat(Utils.formatElapsedTime(mContext, testMillis, false)).isEqualTo(expectedTime);
+        assertThat(Utils.formatElapsedTime(mContext, testMillis, false).toString()).isEqualTo(
+                expectedTime);
     }
 
     @Test
@@ -106,7 +115,23 @@
                 + 4 * DateUtils.HOUR_IN_MILLIS + 15 * DateUtils.MINUTE_IN_MILLIS;
         final String expectedTime = "2d 4h 15m";
 
-        assertThat(Utils.formatElapsedTime(mContext, testMillis, false)).isEqualTo(expectedTime);
+        assertThat(Utils.formatElapsedTime(mContext, testMillis, false).toString()).isEqualTo(
+                expectedTime);
+    }
+
+    @Test
+    public void testFormatElapsedTime_onlyContainsMinute_hasTtsSpan() {
+        final double testMillis = 15 * DateUtils.MINUTE_IN_MILLIS;
+
+        final CharSequence charSequence = Utils.formatElapsedTime(mContext, testMillis, false);
+        assertThat(charSequence).isInstanceOf(SpannableStringBuilder.class);
+
+        final SpannableStringBuilder expectedString = (SpannableStringBuilder) charSequence;
+        final TtsSpan[] ttsSpans = expectedString.getSpans(0, expectedString.length(),
+                TtsSpan.class);
+
+        assertThat(ttsSpans).asList().hasSize(1);
+        assertThat(ttsSpans[0].getType()).isEqualTo(TtsSpan.TYPE_MEASURE);
     }
 
     @Test
@@ -119,13 +144,13 @@
     }
 
     @Test
-    public void getInstallationStatus_notInstalled_shouldReturnUninstalled() {
+    public void testGetInstallationStatus_notInstalled_shouldReturnUninstalled() {
         assertThat(Utils.getInstallationStatus(new ApplicationInfo()))
                 .isEqualTo(R.string.not_installed);
     }
 
     @Test
-    public void getInstallationStatus_enabled_shouldReturnInstalled() {
+    public void testGetInstallationStatus_enabled_shouldReturnInstalled() {
         final ApplicationInfo info = new ApplicationInfo();
         info.flags = ApplicationInfo.FLAG_INSTALLED;
         info.enabled = true;
@@ -134,7 +159,7 @@
     }
 
     @Test
-    public void getInstallationStatus_disabled_shouldReturnDisabled() {
+    public void testGetInstallationStatus_disabled_shouldReturnDisabled() {
         final ApplicationInfo info = new ApplicationInfo();
         info.flags = ApplicationInfo.FLAG_INSTALLED;
         info.enabled = false;
diff --git a/tests/robotests/src/com/android/settings/applications/InstalledAppDetailsTest.java b/tests/robotests/src/com/android/settings/applications/InstalledAppDetailsTest.java
index f372836..9c91ccf 100644
--- a/tests/robotests/src/com/android/settings/applications/InstalledAppDetailsTest.java
+++ b/tests/robotests/src/com/android/settings/applications/InstalledAppDetailsTest.java
@@ -87,6 +87,8 @@
     private BatteryStatsHelper mBatteryStatsHelper;
     @Mock
     private BatteryStats.Uid mUid;
+    @Mock
+    private PackageManager mPackageManager;
 
     private InstalledAppDetails mAppDetail;
     private Context mShadowContext;
@@ -94,14 +96,15 @@
     @Before
     public void setUp() {
         MockitoAnnotations.initMocks(this);
-        mShadowContext = RuntimeEnvironment.application;
 
+        mShadowContext = RuntimeEnvironment.application;
         mAppDetail = spy(new InstalledAppDetails());
 
         mBatterySipper.drainType = BatterySipper.DrainType.IDLE;
         mBatterySipper.uidObj = mUid;
         doReturn(mActivity).when(mAppDetail).getActivity();
         doReturn(mShadowContext).when(mAppDetail).getContext();
+        doReturn(mPackageManager).when(mActivity).getPackageManager();
 
         // Default to not considering any apps to be instant (individual tests can override this).
         ReflectionHelpers.setStaticField(AppUtils.class, "sInstantAppDataProvider",
diff --git a/tests/robotests/src/com/android/settings/fuelgauge/AdvancedPowerUsageDetailTest.java b/tests/robotests/src/com/android/settings/fuelgauge/AdvancedPowerUsageDetailTest.java
index 15fec3c..4305dc7 100644
--- a/tests/robotests/src/com/android/settings/fuelgauge/AdvancedPowerUsageDetailTest.java
+++ b/tests/robotests/src/com/android/settings/fuelgauge/AdvancedPowerUsageDetailTest.java
@@ -57,6 +57,8 @@
 import org.mockito.MockitoAnnotations;
 import org.mockito.invocation.InvocationOnMock;
 import org.mockito.stubbing.Answer;
+import org.robolectric.RuntimeEnvironment;
+
 import org.robolectric.annotation.Config;
 import org.robolectric.util.ReflectionHelpers;
 
@@ -143,6 +145,7 @@
 
         mFragment.mHeaderPreference = mHeaderPreference;
         mFragment.mState = mState;
+        mFragment.mBatteryUtils = new BatteryUtils(RuntimeEnvironment.application);
         mAppEntry.info = mock(ApplicationInfo.class);
 
         mTestActivity = spy(new SettingsActivity());
diff --git a/tests/robotests/src/com/android/settings/fuelgauge/BatteryUtilsTest.java b/tests/robotests/src/com/android/settings/fuelgauge/BatteryUtilsTest.java
index e5383c8..52cfe4c 100644
--- a/tests/robotests/src/com/android/settings/fuelgauge/BatteryUtilsTest.java
+++ b/tests/robotests/src/com/android/settings/fuelgauge/BatteryUtilsTest.java
@@ -33,6 +33,9 @@
 import org.robolectric.RuntimeEnvironment;
 import org.robolectric.annotation.Config;
 
+import java.util.ArrayList;
+import java.util.List;
+
 import static android.os.BatteryStats.Uid.PROCESS_STATE_BACKGROUND;
 import static android.os.BatteryStats.Uid.PROCESS_STATE_FOREGROUND;
 import static android.os.BatteryStats.Uid.PROCESS_STATE_FOREGROUND_SERVICE;
@@ -47,9 +50,7 @@
 import static org.mockito.Mockito.doReturn;
 import static org.mockito.Matchers.eq;
 import static org.mockito.Mockito.when;
-
-import java.util.ArrayList;
-import java.util.List;
+import static org.mockito.Mockito.spy;
 
 @RunWith(SettingsRobolectricTestRunner.class)
 @Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)
@@ -127,6 +128,8 @@
 
         mBatteryUtils = BatteryUtils.getInstance(RuntimeEnvironment.application);
         mBatteryUtils.mPowerUsageFeatureProvider = mProvider;
+
+        mBatteryUtils = spy(new BatteryUtils(RuntimeEnvironment.application));
     }
 
     @Test
diff --git a/tests/robotests/src/com/android/settings/fuelgauge/PowerUsageAdvancedTest.java b/tests/robotests/src/com/android/settings/fuelgauge/PowerUsageAdvancedTest.java
index 41b1c96..7a1284a 100644
--- a/tests/robotests/src/com/android/settings/fuelgauge/PowerUsageAdvancedTest.java
+++ b/tests/robotests/src/com/android/settings/fuelgauge/PowerUsageAdvancedTest.java
@@ -18,6 +18,7 @@
 import android.content.Context;
 import android.content.pm.PackageManager;
 import android.os.UserManager;
+import android.text.TextUtils;
 
 import com.android.internal.os.BatterySipper;
 import com.android.internal.os.BatterySipper.DrainType;
@@ -105,9 +106,12 @@
         when(mPowerUsageAdvanced.getContext()).thenReturn(mShadowContext);
         doReturn(STUB_STRING).when(mPowerUsageAdvanced).getString(anyInt(), any(), any());
         doReturn(STUB_STRING).when(mPowerUsageAdvanced).getString(anyInt(), any());
+        doReturn(mShadowContext.getText(R.string.battery_used_for)).when(
+                mPowerUsageAdvanced).getText(R.string.battery_used_for);
         mPowerUsageAdvanced.setPackageManager(mPackageManager);
         mPowerUsageAdvanced.setPowerUsageFeatureProvider(mPowerUsageFeatureProvider);
         mPowerUsageAdvanced.setUserManager(mUserManager);
+        mPowerUsageAdvanced.mBatteryUtils = spy(new BatteryUtils(mShadowContext));
 
         mPowerUsageData = new PowerUsageData(UsageType.APP);
         mMaxBatterySipper.totalPowerMah = TYPE_BLUETOOTH_USAGE;
@@ -176,10 +180,12 @@
 
     @Test
     public void testUpdateUsageDataSummary_onlyOneApp_showUsageTime() {
+        final String expectedSummary = "Used for 0m";
         mPowerUsageData.usageList.add(mNormalBatterySipper);
+
         mPowerUsageAdvanced.updateUsageDataSummary(mPowerUsageData, TOTAL_POWER, DISCHARGE_AMOUNT);
 
-        verify(mPowerUsageAdvanced).getString(eq(R.string.battery_used_for), any());
+        assertThat(mPowerUsageData.summary.toString()).isEqualTo(expectedSummary);
     }
 
     @Test
diff --git a/tests/robotests/src/com/android/settings/fuelgauge/PowerUsageSummaryTest.java b/tests/robotests/src/com/android/settings/fuelgauge/PowerUsageSummaryTest.java
index 5611371..5cb60d2 100644
--- a/tests/robotests/src/com/android/settings/fuelgauge/PowerUsageSummaryTest.java
+++ b/tests/robotests/src/com/android/settings/fuelgauge/PowerUsageSummaryTest.java
@@ -88,15 +88,16 @@
 public class PowerUsageSummaryTest {
     private static final String[] PACKAGE_NAMES = {"com.app1", "com.app2"};
     private static final String TIME_LEFT = "2h30min";
+    private static final String STUB_STRING = "stub_string";
     private static final int BATTERY_LEVEL = 55;
     private static final int UID = 123;
     private static final int POWER_MAH = 100;
     private static final long REMAINING_TIME_US = 100000;
-    private static final long TIME_SINCE_LAST_FULL_CHARGE_MS = 25000;
+    private static final long TIME_SINCE_LAST_FULL_CHARGE_MS = 120 * 60 * 1000;
     private static final long TIME_SINCE_LAST_FULL_CHARGE_US =
             TIME_SINCE_LAST_FULL_CHARGE_MS * 1000;
     private static final int DISCHARGE_AMOUNT = 100;
-    private static final long USAGE_TIME_MS = 10000;
+    private static final long USAGE_TIME_MS = 65 * 60 * 1000;
     private static final double TOTAL_POWER = 200;
     private static final double BATTERY_SCREEN_USAGE = 300;
     private static final double BATTERY_SYSTEM_USAGE = 600;
@@ -125,8 +126,6 @@
     @Mock
     private BatterySipper mCellBatterySipper;
     @Mock
-    private PowerGaugePreference mPreference;
-    @Mock
     private LayoutPreference mBatteryLayoutPref;
     @Mock
     private TextView mBatteryPercentText;
@@ -134,10 +133,6 @@
     private TextView mSummary1;
     @Mock
     private BatteryInfo mBatteryInfo;
-    @Mock
-    private PowerGaugePreference mScreenUsagePref;
-    @Mock
-    private PowerGaugePreference mLastFullChargePref;
     @Mock(answer = Answers.RETURNS_DEEP_STUBS)
     private BatteryStatsHelper mBatteryHelper;
     @Mock
@@ -150,6 +145,9 @@
     private TestFragment mFragment;
     private FakeFeatureFactory mFeatureFactory;
     private BatteryMeterView mBatteryMeterView;
+    private PowerGaugePreference mPreference;
+    private PowerGaugePreference mScreenUsagePref;
+    private PowerGaugePreference mLastFullChargePref;
 
     @Before
     public void setUp() {
@@ -160,6 +158,9 @@
         mFeatureFactory = (FakeFeatureFactory) FakeFeatureFactory.getFactory(mContext);
         when(mContext.getSystemService(Context.POWER_SERVICE)).thenReturn(mPowerManager);
 
+        mPreference = new PowerGaugePreference(mRealContext);
+        mScreenUsagePref = new PowerGaugePreference(mRealContext);
+        mLastFullChargePref = new PowerGaugePreference(mRealContext);
         mFragment = spy(new TestFragment(mContext));
         mFragment.initFeatureProvider();
         mBatteryMeterView = new BatteryMeterView(mRealContext);
@@ -202,6 +203,7 @@
         when(mBatteryHelper.getUsageList()).thenReturn(mUsageList);
         mFragment.mScreenUsagePref = mScreenUsagePref;
         mFragment.mLastFullChargePref = mLastFullChargePref;
+        mFragment.mBatteryUtils = spy(new BatteryUtils(mRealContext));
 
         mBatteryInfo.batteryLevel = BATTERY_LEVEL;
     }
@@ -306,16 +308,21 @@
     public void testSetUsageSummary_timeLessThanOneMinute_DoNotSetSummary() {
         final long usageTimeMs = 59 * DateUtils.SECOND_IN_MILLIS;
 
-        mFragment.setUsageSummary(mPreference, "", usageTimeMs);
-        verify(mPreference, never()).setSummary(anyString());
+        mFragment.setUsageSummary(mPreference, usageTimeMs);
+        assertThat(mPreference.getSummary()).isNull();
     }
 
     @Test
     public void testSetUsageSummary_timeMoreThanOneMinute_setSummary() {
         final long usageTimeMs = 2 * DateUtils.MINUTE_IN_MILLIS;
+        doReturn(mRealContext.getText(R.string.battery_used_for)).when(mFragment).getText(
+                R.string.battery_used_for);
+        doReturn(mRealContext).when(mFragment).getContext();
+        final String expectedSummary = "Used for 2m";
 
-        mFragment.setUsageSummary(mPreference, "", usageTimeMs);
-        verify(mPreference).setSummary(anyString());
+        mFragment.setUsageSummary(mPreference, usageTimeMs);
+
+        assertThat(mPreference.getSummary().toString()).isEqualTo(expectedSummary);
     }
 
     @Test
@@ -382,32 +389,37 @@
 
     @Test
     public void testUpdateScreenPreference_showCorrectSummary() {
-        final String expectedUsedTime = Utils.formatElapsedTime(mRealContext, USAGE_TIME_MS, false);
         doReturn(mScreenBatterySipper).when(mFragment).findBatterySipperByType(any(), any());
         doReturn(mRealContext).when(mFragment).getContext();
+        final CharSequence expectedSummary = Utils.formatElapsedTime(mRealContext, USAGE_TIME_MS,
+                false);
 
         mFragment.updateScreenPreference();
 
-        verify(mScreenUsagePref).setSubtitle(expectedUsedTime);
+        assertThat(mScreenUsagePref.getSubtitle()).isEqualTo(expectedSummary);
     }
 
     @Test
     public void testUpdateLastFullChargePreference_showCorrectSummary() {
+        final CharSequence formattedString = mRealContext.getText(
+                R.string.power_last_full_charge_summary);
+        final CharSequence timeSequence = Utils.formatElapsedTime(mRealContext,
+                TIME_SINCE_LAST_FULL_CHARGE_MS, false);
+        final CharSequence expectedSummary = TextUtils.expandTemplate(
+                formattedString, timeSequence);
+        doReturn(formattedString).when(mFragment).getText(R.string.power_last_full_charge_summary);
         doReturn(mRealContext).when(mFragment).getContext();
-        final String expected = mRealContext.getString(R.string.power_last_full_charge_summary,
-                Utils.formatElapsedTime(mRealContext, TIME_SINCE_LAST_FULL_CHARGE_MS, false));
-        doReturn(expected).when(mFragment).getString(eq(R.string.power_last_full_charge_summary),
-                any());
 
         mFragment.updateLastFullChargePreference(TIME_SINCE_LAST_FULL_CHARGE_MS);
 
-        verify(mLastFullChargePref).setSubtitle(expected);
+        assertThat(mLastFullChargePref.getSubtitle()).isEqualTo(expectedSummary);
     }
 
     @Test
     public void testUpdatePreference_usageListEmpty_shouldNotCrash() {
         when(mBatteryHelper.getUsageList()).thenReturn(new ArrayList<BatterySipper>());
-        doReturn("").when(mFragment).getString(anyInt(), any());
+        doReturn(STUB_STRING).when(mFragment).getString(anyInt(), any());
+        doReturn(mRealContext).when(mFragment).getContext();
 
         // Should not crash when update
         mFragment.updateScreenPreference();