diff --git a/wideboy/scenes/default/tiles.py b/wideboy/scenes/default/tiles.py
index 67967ba..ce2a605 100644
--- a/wideboy/scenes/default/tiles.py
+++ b/wideboy/scenes/default/tiles.py
@@ -427,7 +427,7 @@ class CellBatteryLevel(GridCell):
 
     @property
     def label(self):
-        return template_if_defined(self.value, "{}%")
+        return template_if_defined(self.value, "{:.0f}%")
 
     @property
     def open(self):
diff --git a/wideboy/sprites/tile_grid/__init__.py b/wideboy/sprites/tile_grid/__init__.py
index 41ca70a..4915a66 100644
--- a/wideboy/sprites/tile_grid/__init__.py
+++ b/wideboy/sprites/tile_grid/__init__.py
@@ -192,8 +192,7 @@ def update(self, frame, clock, delta, events):
             cx += column.animator.value
             column.update()
             column.draw(self.image)
-        self.rect.width = cx
-        self.rect.height = cy
+        self.rect.width, self.rect.height = self.calculate_size()
         self.dirty = 1 if self.update_frames > 0 else 0
         self.update_frames -= 1