diff --git a/esp32/include/ControllerConfiguration.h b/esp32/include/ControllerConfiguration.h
index 85db895..ad2bb04 100644
--- a/esp32/include/ControllerConfiguration.h
+++ b/esp32/include/ControllerConfiguration.h
@@ -101,6 +101,7 @@
 
 #define TEMPERATUR_TIMEOUT              3000    /**< 3 Seconds timeout for the temperatur sensors */
 #define TEMP_SENSOR_MEASURE_SERIES      5
+#define VOLT_SENSOR_MEASURE_SERIES      5
 
 /* @} */
 #endif
\ No newline at end of file
diff --git a/esp32/src/main.cpp b/esp32/src/main.cpp
index 21e2c22..261614b 100644
--- a/esp32/src/main.cpp
+++ b/esp32/src/main.cpp
@@ -85,8 +85,8 @@ int readCounter = 0;
 bool mConfigured = false;
 long nextBlink = 0;         /**< Time needed in main loop to support expected blink code */
 
-RunningMedian lipoRawSensor = RunningMedian(5);
-RunningMedian solarRawSensor = RunningMedian(5);
+RunningMedian lipoRawSensor = RunningMedian(VOLT_SENSOR_MEASURE_SERIES);
+RunningMedian solarRawSensor = RunningMedian(VOLT_SENSOR_MEASURE_SERIES);
 RunningMedian waterRawSensor = RunningMedian(5);
 RunningMedian lipoTempSensor = RunningMedian(TEMP_SENSOR_MEASURE_SERIES);
 RunningMedian waterTempSensor = RunningMedian(TEMP_SENSOR_MEASURE_SERIES);
@@ -180,7 +180,7 @@ long getDistance()
  */
 void readSystemSensors()
 {
-  for (int i = 0; i < 5; i++)
+  for (int i = 0; i < VOLT_SENSOR_MEASURE_SERIES; i++)
   {
     lipoRawSensor.add(analogRead(SENSOR_LIPO));
     solarRawSensor.add(analogRead(SENSOR_SOLAR));