TESR should use less CPU when no-op.

onInventoryChange for FZ.
Networks without batteries can store up to 1000 AE.
Fixed a bug that cause energy to spiral out of control and go infinite.
Fixed a crash with storage buses and fluids.

tile/misc/TileCharger.java

@@ -247,4 +247,10 @@ public class TileCharger extends AENetworkPowerTile implements ICrankable
 		}
 	}
 
+	@Override
+	public boolean requiresTESR()
+	{
+		return true;
+	}
+
 }