diff --git a/Content.Server/Ninja/Systems/BatteryDrainerSystem.cs b/Content.Server/Ninja/Systems/BatteryDrainerSystem.cs
index 8e707cf3fc..71e38ed3f6 100644
--- a/Content.Server/Ninja/Systems/BatteryDrainerSystem.cs
+++ b/Content.Server/Ninja/Systems/BatteryDrainerSystem.cs
@@ -106,6 +106,6 @@ public sealed class BatteryDrainerSystem : SharedBatteryDrainerSystem
         _popup.PopupEntity(Loc.GetString("battery-drainer-success", ("battery", target)), uid, uid);
 
         // repeat the doafter until battery is full
-        return !_battery.IsFull(ent, battery);
+        return !_battery.IsFull(comp.BatteryUid.Value, battery);
     }
 }