diff --git a/notebook_nueva/modelo.py b/notebook_nueva/modelo.py
index aca3f8f..03e95df 100644
--- a/notebook_nueva/modelo.py
+++ b/notebook_nueva/modelo.py
@@ -49,12 +49,9 @@ battery_holder = (
         [(-67, 3), (0, 3), (0, -10), (-67, -10), (-67, 3)],
         mode="s",
     )
-    .polygon(
-        [(-67, 30), (0, 30), (0, 12), (-67, 12), (-67, 30)],
-        mode="s",
-    )
 )
 
+
 power_in = cq.Sketch().circle(5, mode="a")
 usb_in = cq.Sketch().trapezoid(13, 5.5, 90, mode="a")