diff --git a/res/values/strings.xml b/res/values/strings.xml
index 00748369ab5..6ae57ca80b1 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -4924,9 +4924,7 @@
     <string name="device_cellular_network">Mobile network scanning</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="relative_time">^1</xliff:g>)</string>
-    <!-- Label for device components using battery in power use UI. Note: ^1 should be used in all translations[CHAR_LIMIT=120] -->
-    <string name="power_usage_list_summary_device">Device usage since full charge (<xliff:g id="relative_time">^1</xliff:g>)</string>
+    <string name="power_usage_list_summary">Battery usage since full charge</string>
     <!-- Temp string used to debug new battery estimates [DO NOT TRANSLATE] -->
     <string name="power_usage_enhanced_debug" translatable="false"><xliff:g id="time">%1$s</xliff:g> left (New ML est)</string>
     <!-- Temp string used to debug old battery estimates [DO NOT TRANSLATE] -->
@@ -5031,11 +5029,11 @@
     <!-- Summary for the battery high usage tip, which presents battery may run out soon [CHAR LIMIT=NONE] -->
     <string name="battery_tip_high_usage_summary">Battery may run out soon</string>
     <!-- Message for battery tip dialog to show the status about the battery [CHAR LIMIT=NONE] -->
-    <string name="battery_tip_dialog_message" product="default">Your phone has been used more than usual. Your battery may run out sooner than expected.\n\nTop <xliff:g id="number">%1$d</xliff:g> apps since last full charge(<xliff:g id="time_period_ago" example="1 hr ago">%2$s</xliff:g>):</string>
+    <string name="battery_tip_dialog_message" product="default">Your phone has been used more than usual. Your battery may run out sooner than expected.\n\nTop <xliff:g id="number">%1$d</xliff:g> apps you used since full charge:</string>
     <!-- Message for battery tip dialog to show the status about the battery [CHAR LIMIT=NONE] -->
-    <string name="battery_tip_dialog_message" product="tablet">Your tablet has been used more than usual. Your battery may run out sooner than expected.\n\nTop <xliff:g id="number">%1$d</xliff:g> apps since last full charge(<xliff:g id="time_period_ago" example="1 hr ago">%2$s</xliff:g>):</string>
+    <string name="battery_tip_dialog_message" product="tablet">Your tablet has been used more than usual. Your battery may run out sooner than expected.\n\nTop <xliff:g id="number">%1$d</xliff:g> apps you used since full charge:</string>
     <!-- Message for battery tip dialog to show the status about the battery [CHAR LIMIT=NONE] -->
-    <string name="battery_tip_dialog_message" product="device">Your device has been used more than usual. Your battery may run out sooner than expected.\n\nTop <xliff:g id="number">%1$d</xliff:g> apps since last full charge(<xliff:g id="time_period_ago" example="1 hr ago">%2$s</xliff:g>):</string>
+    <string name="battery_tip_dialog_message" product="device">Your device has been used more than usual. Your battery may run out sooner than expected.\n\nTop <xliff:g id="number">%1$d</xliff:g> apps you used since full charge:</string>
     <!-- Title for restricted app preference, showing how many app need to be restricted [CHAR LIMIT=NONE] -->
     <plurals name="battery_tip_restrict_title">
         <item quantity="one">Restrict %1$d app</item>
diff --git a/src/com/android/settings/fuelgauge/BatteryAppListPreferenceController.java b/src/com/android/settings/fuelgauge/BatteryAppListPreferenceController.java
index b5b98c3575c..01770a2644d 100644
--- a/src/com/android/settings/fuelgauge/BatteryAppListPreferenceController.java
+++ b/src/com/android/settings/fuelgauge/BatteryAppListPreferenceController.java
@@ -193,14 +193,7 @@ public class BatteryAppListPreferenceController extends AbstractPreferenceContro
         }
 
         mBatteryStatsHelper = statsHelper;
-        final long lastFullChargeTime = mBatteryUtils.calculateLastFullChargeTime(
-                mBatteryStatsHelper, System.currentTimeMillis());
-        final CharSequence timeSequence = StringUtil.formatRelativeTime(mContext,
-                lastFullChargeTime,
-                false);
-        final int resId = showAllApps ? R.string.power_usage_list_summary_device
-                : R.string.power_usage_list_summary;
-        mAppListGroup.setTitle(TextUtils.expandTemplate(mContext.getText(resId), timeSequence));
+        mAppListGroup.setTitle(R.string.power_usage_list_summary);
 
         final PowerProfile powerProfile = statsHelper.getPowerProfile();
         final BatteryStats stats = statsHelper.getStats();
diff --git a/src/com/android/settings/fuelgauge/batterytip/BatteryTipDialogFragment.java b/src/com/android/settings/fuelgauge/batterytip/BatteryTipDialogFragment.java
index ac6d6229e3b..3870e72d181 100644
--- a/src/com/android/settings/fuelgauge/batterytip/BatteryTipDialogFragment.java
+++ b/src/com/android/settings/fuelgauge/batterytip/BatteryTipDialogFragment.java
@@ -94,10 +94,7 @@ public class BatteryTipDialogFragment extends InstrumentedDialogFragment impleme
 
                 return new AlertDialog.Builder(context)
                         .setMessage(getString(R.string.battery_tip_dialog_message,
-                                highUsageTip.getHighUsageAppList().size(),
-                                StringUtil.formatRelativeTime(context,
-                                        highUsageTip.getLastFullChargeTimeMs(),
-                                        false /* withSeconds */)))
+                                highUsageTip.getHighUsageAppList().size()))
                         .setView(view)
                         .setPositiveButton(android.R.string.ok, null)
                         .create();
diff --git a/tests/robotests/src/com/android/settings/fuelgauge/batterytip/BatteryTipDialogFragmentTest.java b/tests/robotests/src/com/android/settings/fuelgauge/batterytip/BatteryTipDialogFragmentTest.java
index 7a41921789d..a02bdc2aa52 100644
--- a/tests/robotests/src/com/android/settings/fuelgauge/batterytip/BatteryTipDialogFragmentTest.java
+++ b/tests/robotests/src/com/android/settings/fuelgauge/batterytip/BatteryTipDialogFragmentTest.java
@@ -113,7 +113,7 @@ public class BatteryTipDialogFragmentTest {
         ShadowAlertDialog shadowDialog = shadowOf(dialog);
 
         assertThat(shadowDialog.getMessage()).isEqualTo(
-                mContext.getString(R.string.battery_tip_dialog_message, 1, "60 minutes ago"));
+                mContext.getString(R.string.battery_tip_dialog_message, 1));
     }
 
     @Test