diff --git a/Core/Inc/state_machine.h b/Core/Inc/state_machine.h
index 716ad3b..b7726f3 100644
--- a/Core/Inc/state_machine.h
+++ b/Core/Inc/state_machine.h
@@ -64,9 +64,9 @@ typedef struct {
 extern StateHandle state;
 static bool relay_closed = 0;
 static bool precharge_closed = 0;
-static int16_t RELAY_BAT_SIDE_VOLTAGE;
-static int16_t RELAY_ESC_SIDE_VOLTAGE;
-static int16_t CURRENT_MEASUREMENT;
+extern int16_t RELAY_BAT_SIDE_VOLTAGE;
+extern int16_t RELAY_ESC_SIDE_VOLTAGE;
+extern int16_t CURRENT_MEASUREMENT;
 
 void sm_init();
 void sm_update();
diff --git a/Core/Src/state_machine.c b/Core/Src/state_machine.c
index 9b44794..144ae14 100644
--- a/Core/Src/state_machine.c
+++ b/Core/Src/state_machine.c
@@ -2,7 +2,10 @@
 #include "stm32f3xx_hal.h"
 
 StateHandle state;
-static uint32_t timestamp;
+int16_t RELAY_BAT_SIDE_VOLTAGE;
+int16_t RELAY_ESC_SIDE_VOLTAGE;
+int16_t CURRENT_MEASUREMENT;
+uint32_t timestamp;
 
 void sm_init(){
   state.current_state = STATE_INACTIVE;
@@ -11,9 +14,9 @@ void sm_init(){
 }
 
 void sm_update(){
-  RELAY_BAT_SIDE_VOLTAGE = module.auxVoltages[0] * 11.989;
-  RELAY_ESC_SIDE_VOLTAGE = module.auxVoltages[1] * 11.989;
-  CURRENT_MEASUREMENT = module.auxVoltages[2] ;
+  RELAY_BAT_SIDE_VOLTAGE = module.auxVoltages[0] * 12.42;     // the calculation says the factor is 11.989. 12.42 yields the better result
+  RELAY_ESC_SIDE_VOLTAGE = module.auxVoltages[1] * 12.42;
+  CURRENT_MEASUREMENT = module.auxVoltages[2] / 2.2;
   
   switch (state.current_state) {
     case STATE_INACTIVE: