diff --git a/services/core/java/com/android/server/am/BatteryExternalStatsWorker.java b/services/core/java/com/android/server/am/BatteryExternalStatsWorker.java
index 525531635df69..0524f91a01fbf 100644
--- a/services/core/java/com/android/server/am/BatteryExternalStatsWorker.java
+++ b/services/core/java/com/android/server/am/BatteryExternalStatsWorker.java
@@ -445,7 +445,7 @@ class BatteryExternalStatsWorker implements BatteryStatsImpl.ExternalStatsSync {
         if ((updateFlags & BatteryStatsImpl.ExternalStatsSync.UPDATE_RADIO) != 0) {
             // We were asked to fetch Telephony data.
             if (mTelephony == null) {
-                mTelephony = TelephonyManager.from(mContext);
+                mTelephony = mContext.getSystemService(TelephonyManager.class);
             }
 
             if (mTelephony != null) {
diff --git a/services/core/java/com/android/server/am/BatteryStatsService.java b/services/core/java/com/android/server/am/BatteryStatsService.java
index a47ea4f95b3ed..8c60d0c759dcd 100644
--- a/services/core/java/com/android/server/am/BatteryStatsService.java
+++ b/services/core/java/com/android/server/am/BatteryStatsService.java
@@ -731,7 +731,7 @@ public final class BatteryStatsService extends IBatteryStats.Stub
 
     public void notePhoneState(int state) {
         enforceCallingPermission();
-        int simState = TelephonyManager.getDefault().getSimState();
+        int simState = mContext.getSystemService(TelephonyManager.class).getSimState();
         synchronized (mStats) {
             mStats.notePhoneStateLocked(state, simState);
         }