diff --git a/include/storage.h b/include/storage.h
index f4ad5d8..be4c80f 100644
--- a/include/storage.h
+++ b/include/storage.h
@@ -12,7 +12,7 @@ constexpr size_t maximumStorageDurationInHours = (storageSize / TEMPERATURE_SENS
 
 // Max size: 7664
 constexpr size_t maxRtcStorageSize = 7664;
-constexpr size_t rtcStorageSize = 7632;
+constexpr size_t rtcStorageSize = 7600;
 
 constexpr size_t maxEepromSize = 13350;
 constexpr size_t eepromSize = 13350;
diff --git a/src/main.cpp b/src/main.cpp
index f09d418..4d341ce 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -97,7 +97,7 @@ void enableLED() {
 }
 
 void setup() {
-    //Serial.begin(serialBaudRate);    
+    Serial.begin(serialBaudRate);    
     
     // LED useless inside case
     //enableLED();
diff --git a/src/temperature.cpp b/src/temperature.cpp
index cb89413..1318879 100644
--- a/src/temperature.cpp
+++ b/src/temperature.cpp
@@ -31,8 +31,8 @@ struct Sensor {
     bool foundDuringCurrentUpdate;
 };
 
-Sensor sensors[TEMPERATURE_SENSOR_MAX_COUNT];
-uint8_t availableSensorCount = 0;
+RTC_DATA_ATTR Sensor sensors[TEMPERATURE_SENSOR_MAX_COUNT];
+RTC_DATA_ATTR uint8_t availableSensorCount = 0;
 
 bool hasSensorAtIndex(uint8_t sensorIndex) {
     return sensors[sensorIndex].isSet;