diff --git a/panther_battery/src/adc_node.py b/panther_battery/src/adc_node.py
index 373f5845c..999640c87 100755
--- a/panther_battery/src/adc_node.py
+++ b/panther_battery/src/adc_node.py
@@ -171,6 +171,7 @@ def _check_battery_count(self) -> int:
                 f'[{rospy.get_name()}] Battery ADC measurement error excep. '
                 f'The number of batteries cannot be determined. The single battery was adopted.'
             )
+            return 1
 
         return 1 if V_temp_bat_2 > ADCNode.BAT02_DETECT_THRESH else 2