diff --git a/AMS_Master_Code/Core/Inc/battery.h b/AMS_Master_Code/Core/Inc/battery.h
index 0158579..afdd6e5 100644
--- a/AMS_Master_Code/Core/Inc/battery.h
+++ b/AMS_Master_Code/Core/Inc/battery.h
@@ -12,6 +12,7 @@ extern struct {uint16_t min; uint16_t max;} module_voltages[N_BMS];
 extern int16_t max_temp;
 extern int16_t min_temp;
 extern struct {int16_t min; int16_t max;} module_temps[N_BMS];
+extern float module_std_deviation[N_BMS];
 
 extern int16_t cellTemps[N_BMS][N_CELLS];
 
diff --git a/AMS_Master_Code/Core/Inc/print_master_status.h b/AMS_Master_Code/Core/Inc/print_master_status.h
deleted file mode 100644
index dda2d9d..0000000
--- a/AMS_Master_Code/Core/Inc/print_master_status.h
+++ /dev/null
@@ -1,8 +0,0 @@
-#ifndef INC_UTIL_H
-#define INC_UTIL_H
-
-#include <stdint.h>
-
-void print_status();
-
-#endif // INC_UTIL_H
diff --git a/AMS_Master_Code/Core/Src/battery.c b/AMS_Master_Code/Core/Src/battery.c
index fc6329f..52be721 100644
--- a/AMS_Master_Code/Core/Src/battery.c
+++ b/AMS_Master_Code/Core/Src/battery.c
@@ -5,6 +5,7 @@
 #include "config_ADBMS6830.h"
 #include "ts_state_machine.h"
 #include <string.h>
+#include <math.h>
 
 #define SWO_LOG_PREFIX "[BATTERY] "
 #include "swo_log.h"
@@ -20,6 +21,7 @@ typeof(module_voltages) module_voltages = {[0 ... N_BMS - 1] = {0xFFFF, 0}};
 int16_t min_temp = INT16_MAX;
 int16_t max_temp = INT16_MIN;
 typeof(module_temps) module_temps = {[0 ... N_BMS - 1] = {INT16_MAX, INT16_MIN}};
+float module_std_deviation[N_BMS] = {};
 
 int16_t cellTemps[N_BMS][N_CELLS];
 
@@ -57,6 +59,7 @@ HAL_StatusTypeDef battery_init(SPI_HandleTypeDef *hspi) {
     return HAL_OK;
 }
 
+[[gnu::optimize("no-math-errno")]]
 HAL_StatusTypeDef battery_update() {
   auto ret = AMS_Idle_Loop();
   if (ret.status != ADBMS_NO_ERROR) {
@@ -78,6 +81,29 @@ HAL_StatusTypeDef battery_update() {
   max_temp = INT16_MIN;
 
   for (size_t i = 0; i < N_BMS; i++) {
+    // Calculate standard deviation for each module
+    if (DEBUG_CHANNEL_ENABLED(DEBUG_CHANNEL)) {
+      float sum = 0;
+      float mean = 0;
+      float variance = 0;
+      
+      // First pass: calculate mean
+      for (size_t j = 0; j < N_CELLS; j++) {
+        sum += modules[i].cellVoltages[j];
+      }
+      mean = sum / N_CELLS;
+      
+      // Second pass: calculate variance
+      for (size_t j = 0; j < N_CELLS; j++) {
+        float diff = modules[i].cellVoltages[j] - mean;
+        variance += diff * diff;
+      }
+      variance /= N_CELLS;
+      
+      // Calculate standard deviation
+      module_std_deviation[i] = sqrtf(variance);
+    }
+
     for (size_t j = 0; j < N_CELLS; j++) {
       if (modules[i].cellVoltages[j] > min_voltage) {
         min_voltage = modules[i].cellVoltages[j];
diff --git a/AMS_Master_Code/Core/Src/print_master_status.c b/AMS_Master_Code/Core/Src/print_master_status.c
index 5bf30ee..e7c4b20 100644
--- a/AMS_Master_Code/Core/Src/print_master_status.c
+++ b/AMS_Master_Code/Core/Src/print_master_status.c
@@ -1,4 +1,3 @@
-#include "print_master_status.h"
 #include "imd_monitoring.h"
 #include "main.h"
 #include "soc_estimation.h"
@@ -51,20 +50,28 @@ void print_master_status() {
   debug_log(LOG_LEVEL_INFO, "  Min/Max voltage: %d mV / %d mV", min_voltage, max_voltage);
   debug_log(LOG_LEVEL_INFO, "  Min/Max temp:    %d °C / %d °C", min_temp, max_temp);
   debug_log(LOG_LEVEL_INFO, "  SoC:            %.2f %%", current_soc);
-  debug_log(LOG_LEVEL_INFO, "  Module data: Min V | Max V | Min T | Max T");
+  debug_log(LOG_LEVEL_INFO, "  Module data: Min V | Max V | Std Dev | Min T | Max T");
+  auto max_std_dev = 0.0f;
+  for (size_t i = 0; i < N_BMS; i++) {
+    if (module_std_deviation[i] > max_std_dev) {
+      max_std_dev = module_std_deviation[i];
+    }
+  }
   for (size_t i = 0; i < N_BMS; i++) {
     #if USE_ANSI_ESCAPE_CODES
-      #define COLOR_MIN "\033[34m" // Blue for min
-      #define COLOR_MAX "\033[31m" // Red for max
+      #define COLOR_MIN "\033[38;5;75m" //blue for min
+      #define COLOR_MAX "\033[38;5;203m" //red for max
       #define COLOR_RESET "\033[0m"
-      debug_log(LOG_LEVEL_INFO, "  %2zu: %s%5d mV%s | %s%5d mV%s | %s%3d °C%s | %s%3d °C%s", i,
-                (module_voltages[i].min == min_voltage) ? COLOR_MIN : "", (module_voltages[i].min), COLOR_RESET,
-                (module_voltages[i].max == max_voltage) ? COLOR_MAX : "", (module_voltages[i].max), COLOR_RESET,
-                (module_temps[i].min == min_temp) ? COLOR_MIN : "", (module_temps[i].min), COLOR_RESET,
-                (module_temps[i].max == max_temp) ? COLOR_MAX : "", (module_temps[i].max), COLOR_RESET);
+      debug_log(LOG_LEVEL_INFO, "  %2zu: %s%5d mV%s | %s%5d mV%s | %s%.2f mV%s | %s%3d °C%s | %s%3d °C%s", i,
+          (module_voltages[i].min == min_voltage) ? COLOR_MIN : "", (module_voltages[i].min), COLOR_RESET,
+          (module_voltages[i].max == max_voltage) ? COLOR_MAX : "", (module_voltages[i].max), COLOR_RESET,
+          (module_std_deviation[i] > max_std_dev) ? COLOR_MAX : "", module_std_deviation[i], COLOR_RESET,
+          (module_temps[i].min == min_temp) ? COLOR_MIN : "", (module_temps[i].min), COLOR_RESET,
+          (module_temps[i].max == max_temp) ? COLOR_MAX : "", (module_temps[i].max), COLOR_RESET);
     #else
-    debug_log(LOG_LEVEL_INFO, "  %2zu: %5d mV | %5d mV | %3d °C | %3d °C", i,
+    debug_log(LOG_LEVEL_INFO, "  %2zu: %5d mV | %5d mV | %.2f mV | %3d °C | %3d °C", i,
               module_voltages[i].min, module_voltages[i].max,
+              module_std_deviation[i],
               module_temps[i].min, module_temps[i].max);
     #endif
   }