diff --git a/esp32_marauder/BatteryInterface.cpp b/esp32_marauder/BatteryInterface.cpp
index 6dc1863..7c44118 100644
--- a/esp32_marauder/BatteryInterface.cpp
+++ b/esp32_marauder/BatteryInterface.cpp
@@ -102,4 +102,6 @@ int8_t BatteryInterface::getBatteryLevel() {
       return this->power.getBatteryPercent();
     }
   #endif
+
+  return -1;
 }
diff --git a/esp32_marauder/esp32_marauder.ino b/esp32_marauder/esp32_marauder.ino
index 51bbbe2..5e08cb8 100644
--- a/esp32_marauder/esp32_marauder.ino
+++ b/esp32_marauder/esp32_marauder.ino
@@ -196,9 +196,13 @@ uint32_t currentTime  = 0;
 #else
   void backlightOn() {
     #ifdef HAS_SCREEN
-      #if defined(MARAUDER_MINI) || defined(MARAUDER_MINI_V3)
+      #if defined(MARAUDER_MINI) || defined(MARAUDER_MINI_V3) && !defined(DUAL_MINI_C5)
         digitalWrite(TFT_BL, LOW);
       #endif
+
+      #if defined(DUAL_MINI_C5)
+        digitalWrite(TFT_BL, HIGH);
+      #endif
     
       #if !defined(MARAUDER_MINI) && !defined(MARAUDER_MINI_V3)
         digitalWrite(TFT_BL, HIGH);
@@ -208,9 +212,13 @@ uint32_t currentTime  = 0;
 
   void backlightOff() {
     #ifdef HAS_SCREEN
-      #if defined(MARAUDER_MINI) || defined(MARAUDER_MINI_V3)
+      #if defined(MARAUDER_MINI) || defined(MARAUDER_MINI_V3) && !defined(DUAL_MINI_C5)
         digitalWrite(TFT_BL, HIGH);
       #endif
+
+      #if defined(DUAL_MINI_C5)
+        digitalWrite(TFT_BL, LOW);
+      #endif
     
       #if !defined(MARAUDER_MINI) && !defined(MARAUDER_MINI_V3)
         digitalWrite(TFT_BL, LOW);