diff --git a/packages/control/algorithm/utils.py b/packages/control/algorithm/utils.py
index 24f422bb60..562662b17d 100644
--- a/packages/control/algorithm/utils.py
+++ b/packages/control/algorithm/utils.py
@@ -4,7 +4,7 @@
 def get_medium_charging_current(currents: List[float]) -> float:
     """Ermittelt den mittleren Ladestrom der Phasen, auf denen geladen wird.
     """
-    if any(x >= 0.5 for x in currents):
-        return sum(x for x in currents if x >= 0.5) / len([x for x in currents if x >= 0.5])
+    if any(abs(x) >= 0.5 for x in currents):
+        return sum(x for x in currents if abs(x) >= 0.5) / len([x for x in currents if abs(x) >= 0.5])
     else:
         return 0.0