diff --git a/MainCode/adalm1000_logger.py b/MainCode/adalm1000_logger.py
index e973c4b..9db43a8 100644
--- a/MainCode/adalm1000_logger.py
+++ b/MainCode/adalm1000_logger.py
@@ -502,6 +502,17 @@ class BatteryTester:
             self.dev.channels['A'].mode = pysmu.Mode.HI_Z
             self.dev.channels['A'].constant(0)
         
+        # Clear plot data
+        self.time_data.clear()
+        self.voltage_data.clear()
+        self.current_data.clear()
+        if hasattr(self, 'line_voltage') and hasattr(self, 'line_current'):
+            self.line_voltage.set_data([], [])
+            self.line_current.set_data([], [])
+            self.ax.set_xlim(0, 1)
+            self.ax2.set_xlim(0, 1)
+            self.canvas.draw()
+        
         self.status_var.set("Test stopped immediately")
         self.stop_button.config(state=tk.DISABLED)
         self.start_button.config(state=tk.NORMAL)