diff --git a/res/values/strings.xml b/res/values/strings.xml
index 96ffb8d..32bfa1c 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -6372,8 +6372,8 @@
     <string name="advanced_battery_preference_title">Battery usage</string>
     <!-- Preference summary for advanced battery usage, for past 24 hours [CHAR LIMIT=40] -->
     <string name="advanced_battery_preference_summary_with_hours">View usage for past 24 hours</string>
-    <!-- Preference summary for advanced battery usage, from last full charge [CHAR LIMIT=40] -->
-    <string name="advanced_battery_preference_summary">View usage from last full charge</string>
+    <!-- Preference summary for advanced battery usage, since last full charge [CHAR LIMIT=40] -->
+    <string name="advanced_battery_preference_summary">View usage since last full charge</string>
 
     <!-- Activity title for battery usage details for an app. or power consumer -->
     <string name="battery_details_title">App battery usage</string>
@@ -6748,50 +6748,50 @@
     <!-- Title for the battery management group [CHAR LIMIT=40] -->
     <string name ="battery_detail_manage_title">Manage battery usage</string>
 
-    <!-- Description for battery total and background usage time for an app, i.e. 1 hr 15 min total • 39 min background from last full charge. Note: ^1 and ^2 should be used in all translations [CHAR LIMIT=120] -->
-    <string name="battery_total_and_bg_usage"><xliff:g id="time" example="1 hr 15 min">^1</xliff:g> total • <xliff:g id="time" example="39 min">^2</xliff:g> background\nfrom last full charge</string>
+    <!-- Description for battery total and background usage time for an app, i.e. 1 hr 15 min total • 39 min background since last full charge. Note: ^1 and ^2 should be used in all translations [CHAR LIMIT=120] -->
+    <string name="battery_total_and_bg_usage"><xliff:g id="time" example="1 hr 15 min">^1</xliff:g> total • <xliff:g id="time" example="39 min">^2</xliff:g> background\nsince last full charge</string>
     <!-- Description for battery total and background usage time for an app, i.e. 1 hr 15 min total • 39 min background for past 24 hr. Note: ^1 and ^2 should be used in all translations [CHAR LIMIT=120] -->
     <string name="battery_total_and_bg_usage_24hr"><xliff:g id="time" example="1 hr 15 min">^1</xliff:g> total • <xliff:g id="time" example="39 min">^2</xliff:g> background\nfor past 24 hr</string>
     <!-- Description for battery total and background usage time in a time period for an app, i.e. 1 hr 15 min total • 39 min background for 12 am-2 am. Note: ^1, ^2 and ^3 should be used in all translations [CHAR LIMIT=120] -->
     <string name="battery_total_and_bg_usage_with_period"><xliff:g id="time" example="1 hr 15 min">^1</xliff:g> total • <xliff:g id="time" example="39 min">^2</xliff:g> background\nfor <xliff:g id="time_period" example="12 am-2 am">^3</xliff:g></string>
 
-    <!-- Description for battery total usage time is less than a minute for an app from last full charge [CHAR LIMIT=120] -->
-    <string name="battery_total_usage_less_minute">Total less than a minute from last full charge</string>
+    <!-- Description for battery total usage time is less than a minute for an app since last full charge [CHAR LIMIT=120] -->
+    <string name="battery_total_usage_less_minute">Total less than a minute since last full charge</string>
     <!-- Description for battery total usage time is less than a minute for an app for past 24 hr [CHAR LIMIT=120] -->
     <string name="battery_total_usage_less_minute_24hr">Total less than a minute for past 24 hr</string>
     <!-- Description for battery total usage time is less than a minute in a time period for an app, i.e. Total less than a minute for 12 am-2 am. Note: ^1 should be used in all translations[CHAR LIMIT=120] -->
     <string name="battery_total_usage_less_minute_with_period">Total less than a minute for <xliff:g id="time_period" example="12 am-2 am">^1</xliff:g></string>
 
-    <!-- Description for battery background usage time is less than a minute for an app from last full charge [CHAR LIMIT=120] -->
-    <string name="battery_bg_usage_less_minute">Background less than a minute from last full charge</string>
+    <!-- Description for battery background usage time is less than a minute for an app since last full charge [CHAR LIMIT=120] -->
+    <string name="battery_bg_usage_less_minute">Background less than a minute since last full charge</string>
     <!-- Description for battery background usage time is less than a minute for an app for past 24 hr [CHAR LIMIT=120] -->
     <string name="battery_bg_usage_less_minute_24hr">Background less than a minute for past 24 hr</string>
     <!-- Description for battery background usage time is less than a minute in a time period for an app, i.e. Background less than a minute for 12 am-2 am. Note: ^1 should be used in all translations[CHAR LIMIT=120] -->
     <string name="battery_bg_usage_less_minute_with_period">Background less than a minute for <xliff:g id="time_period" example="12 am-2 am">^1</xliff:g></string>
 
-    <!-- Description for battery total usage time for an app, i.e. 1 hr 15 min total from last full charge. Note: ^1 should be used in all translations [CHAR LIMIT=120] -->
-    <string name="battery_total_usage"><xliff:g id="time" example="1 hr 15 min">^1</xliff:g> total from last full charge</string>
+    <!-- Description for battery total usage time for an app, i.e. 1 hr 15 min total since last full charge. Note: ^1 should be used in all translations [CHAR LIMIT=120] -->
+    <string name="battery_total_usage"><xliff:g id="time" example="1 hr 15 min">^1</xliff:g> total since last full charge</string>
     <!-- Description for battery total usage time for an app, i.e. 1 hr 15 min total for past 24 hr. Note: ^1 should be used in all translations [CHAR LIMIT=120] -->
     <string name="battery_total_usage_24hr"><xliff:g id="time" example="1 hr 15 min">^1</xliff:g> total for past 24 hr</string>
     <!-- Description for battery total usage time in a time period for an app, i.e. 1 hr 15 min total for 12 am-2 am. Note: ^1 and ^2 should be used in all translations [CHAR LIMIT=120] -->
     <string name="battery_total_usage_with_period"><xliff:g id="time" example="1 hr 15 min">^1</xliff:g> total for <xliff:g id="time_period" example="12 am-2 am">^2</xliff:g></string>
 
-    <!-- Description for battery background usage time for an app, i.e. 1 hr 15 min background from last full charge. Note: ^1 should be used in all translations [CHAR LIMIT=120] -->
-    <string name="battery_bg_usage"><xliff:g id="time" example="1 hr 15 min">^1</xliff:g> background from last full charge</string>
+    <!-- Description for battery background usage time for an app, i.e. 1 hr 15 min background since last full charge. Note: ^1 should be used in all translations [CHAR LIMIT=120] -->
+    <string name="battery_bg_usage"><xliff:g id="time" example="1 hr 15 min">^1</xliff:g> background since last full charge</string>
     <!-- Description for battery background usage time for an app, i.e. 1 hr 15 min background for past 24 hr. Note: ^1 should be used in all translations [CHAR LIMIT=120] -->
     <string name="battery_bg_usage_24hr"><xliff:g id="time" example="1 hr 15 min">^1</xliff:g> background for past 24 hr</string>
     <!-- Description for battery background usage time in a time period for an app, i.e. 1 hr 15 min background for 12 am-2 am. Note: ^1 and ^2 should be used in all translations [CHAR LIMIT=120] -->
     <string name="battery_bg_usage_with_period"><xliff:g id="time" example="1 hr 15 min">^1</xliff:g> background for <xliff:g id="time_period" example="12 am-2 am">^2</xliff:g></string>
 
-    <!-- Description for battery total usage with background usage time less than a minute for an app, i.e. 1 hr 15 min total • background less than a minute from last full charge. Note: ^1 should be used in all translations [CHAR LIMIT=120] -->
-    <string name="battery_total_usage_and_bg_less_minute_usage"><xliff:g id="time" example="1 hr 15 min">^1</xliff:g> total • background less than a minute\nfrom last full charge</string>
+    <!-- Description for battery total usage with background usage time less than a minute for an app, i.e. 1 hr 15 min total • background less than a minute since last full charge. Note: ^1 should be used in all translations [CHAR LIMIT=120] -->
+    <string name="battery_total_usage_and_bg_less_minute_usage"><xliff:g id="time" example="1 hr 15 min">^1</xliff:g> total • background less than a minute\nsince last full charge</string>
     <!-- Description for battery total usage with background usage time less than a minute for an app, i.e. 1 hr 15 min total • background less than a minute for past 24 hr. Note: ^1 should be used in all translations [CHAR LIMIT=120] -->
     <string name="battery_total_usage_and_bg_less_minute_usage_24hr"><xliff:g id="time" example="1 hr 15 min">^1</xliff:g> total • background less than a minute\nfor past 24 hr</string>
     <!-- Description for battery total usage with background usage time less than a minute in a time period for an app, i.e. 1 hr 15 min total • background less than a minute for 12 am-2 am. Note: ^1 and ^2 should be used in all translations [CHAR LIMIT=120] -->
     <string name="battery_total_usage_and_bg_less_minute_usage_with_period"><xliff:g id="time" example="1 hr 15 min">^1</xliff:g> total • background less than a minute\nfor <xliff:g id="time_period" example="12 am-2 am">^2</xliff:g></string>
 
-    <!-- Description for no any battery usage from last full charge [CHAR LIMIT=120] -->
-    <string name="battery_not_usage">No usage from last full charge</string>
+    <!-- Description for no any battery usage since last full charge [CHAR LIMIT=120] -->
+    <string name="battery_not_usage">No usage since last full charge</string>
     <!-- Description for no any battery usage for past 24 hr [CHAR LIMIT=120] -->
     <string name="battery_not_usage_24hr">No usage for past 24 hr</string>
     <!-- Description for no usage time but have battery usage [CHAR LIMIT=120] -->
diff --git a/tests/robotests/src/com/android/settings/fuelgauge/AdvancedPowerUsageDetailTest.java b/tests/robotests/src/com/android/settings/fuelgauge/AdvancedPowerUsageDetailTest.java
index 7c56ab3..6a1280f 100644
--- a/tests/robotests/src/com/android/settings/fuelgauge/AdvancedPowerUsageDetailTest.java
+++ b/tests/robotests/src/com/android/settings/fuelgauge/AdvancedPowerUsageDetailTest.java
@@ -467,7 +467,7 @@
         ArgumentCaptor<CharSequence> captor = ArgumentCaptor.forClass(CharSequence.class);
         verify(mEntityHeaderController).setSummary(captor.capture());
         assertThat(captor.getValue().toString())
-                .isEqualTo("2 min background from last full charge");
+                .isEqualTo("2 min background since last full charge");
     }
 
     @Test
@@ -485,7 +485,7 @@
         ArgumentCaptor<CharSequence> captor = ArgumentCaptor.forClass(CharSequence.class);
         verify(mEntityHeaderController).setSummary(captor.capture());
         assertThat(captor.getValue().toString())
-                .isEqualTo("Background less than a minute from last full charge");
+                .isEqualTo("Background less than a minute since last full charge");
     }
 
     @Test
@@ -504,7 +504,7 @@
         ArgumentCaptor<CharSequence> captor = ArgumentCaptor.forClass(CharSequence.class);
         verify(mEntityHeaderController).setSummary(captor.capture());
         assertThat(captor.getValue().toString())
-                .isEqualTo("Total less than a minute from last full charge");
+                .isEqualTo("Total less than a minute since last full charge");
     }
 
     @Test
@@ -520,8 +520,8 @@
 
         ArgumentCaptor<CharSequence> captor = ArgumentCaptor.forClass(CharSequence.class);
         verify(mEntityHeaderController).setSummary(captor.capture());
-        assertThat(captor.getValue().toString())
-                .isEqualTo("1 min total • background less than a minute\nfrom last full charge");
+        assertThat(captor.getValue().toString()).isEqualTo(
+                "1 min total • background less than a minute\nsince last full charge");
     }
 
     @Test
@@ -538,7 +538,7 @@
         ArgumentCaptor<CharSequence> captor = ArgumentCaptor.forClass(CharSequence.class);
         verify(mEntityHeaderController).setSummary(captor.capture());
         assertThat(captor.getValue().toString())
-                .isEqualTo("1 min total from last full charge");
+                .isEqualTo("1 min total since last full charge");
     }
 
     @Test
@@ -555,7 +555,7 @@
         ArgumentCaptor<CharSequence> captor = ArgumentCaptor.forClass(CharSequence.class);
         verify(mEntityHeaderController).setSummary(captor.capture());
         assertThat(captor.getValue().toString())
-                .isEqualTo("6 min total • 4 min background\nfrom last full charge");
+                .isEqualTo("6 min total • 4 min background\nsince last full charge");
     }
 
     @Test
diff --git a/tests/robotests/src/com/android/settings/fuelgauge/batteryusage/PowerUsageSummaryTest.java b/tests/robotests/src/com/android/settings/fuelgauge/batteryusage/PowerUsageSummaryTest.java
index c049497..fa049f8 100644
--- a/tests/robotests/src/com/android/settings/fuelgauge/batteryusage/PowerUsageSummaryTest.java
+++ b/tests/robotests/src/com/android/settings/fuelgauge/batteryusage/PowerUsageSummaryTest.java
@@ -142,7 +142,7 @@
     public void initPreference_hasCorrectSummary() {
         mFragment.initPreference();
 
-        verify(mBatteryUsagePreference).setSummary("View usage from last full charge");
+        verify(mBatteryUsagePreference).setSummary("View usage since last full charge");
     }
 
     @Test