diff --git a/MainCode/adalm1000_logger.py b/MainCode/adalm1000_logger.py
index 88efa5f..008e953 100644
--- a/MainCode/adalm1000_logger.py
+++ b/MainCode/adalm1000_logger.py
@@ -927,7 +927,7 @@ class BatteryTester(QMainWindow):
 
     def update_plot(self):
         """Update the plot with new data."""
-        if self.time_data.empty():
+        if not self.time_data:
             return
             
         self.line_voltage.set_data(list(self.time_data), list(self.voltage_data))
@@ -937,7 +937,7 @@ class BatteryTester(QMainWindow):
 
     def auto_scale_axes(self):
         """Automatically adjust plot axes."""
-        if self.time_data.empty():
+        if not self.time_data:
             return
         
         # X-axis adjustment
@@ -949,7 +949,7 @@ class BatteryTester(QMainWindow):
             self.ax2.set_xlim(0, new_xmax)
         
         # Y-axes adjustment
-        if not self.voltage_data.empty():
+        if self.voltage_data:
             voltage_padding = 0.2
             min_v = max(0, min(list(self.voltage_data)) - voltage_padding)
             max_v = min(5.0, max(list(self.voltage_data)) + voltage_padding)
@@ -958,7 +958,7 @@ class BatteryTester(QMainWindow):
             new_max = current_ylim[1] + (max_v - current_ylim[1]) * 0.1
             self.ax.set_ylim(new_min, new_max)
             
-        if not self.current_data.empty():
+        if self.current_data:
             current_padding = 0.05
             min_c = max(-0.25, min(list(self.current_data)) - current_padding)
             max_c = min(0.25, max(list(self.current_data)) + current_padding)