diff --git a/ntoskrnl/po/power.c b/ntoskrnl/po/power.c
index f249d0eb1a8..1ddf14741e1 100644
--- a/ntoskrnl/po/power.c
+++ b/ntoskrnl/po/power.c
@@ -703,7 +703,7 @@ NtPowerInformation(IN POWER_INFORMATION_LEVEL PowerInformationLevel,
             {
                 /* Just zero the struct (and thus set BatteryState->BatteryPresent = FALSE) */
                 RtlZeroMemory(BatteryState, sizeof(SYSTEM_BATTERY_STATE));
-                BatteryState->EstimatedTime = MAXULONG;
+                BatteryState->AcOnLine = TRUE;
 
                 Status = STATUS_SUCCESS;
             }