Don't show battery usage information if data is bogus.
diff --git a/res/values/strings.xml b/res/values/strings.xml
index 7a5174e..d6376bc 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -2408,6 +2408,8 @@
     <string name="power_usage_summary_title">Battery use</string>
     <!-- Activity title summary for App Fuel Gauge summary -->
     <string name="power_usage_summary">What has been using the battery</string>
+    <!-- Message to show when battery usage data is not available [CHAR LIMIT=30] -->
+    <string name="power_usage_not_available">Battery usage data not available</string>
     <!-- Battery usage since unplugged -->
     <string name="battery_since_unplugged">Battery use since unplugged</string>
     <!-- Battery usage since user reset the stats -->