diff --git a/bumblebee/modules/battery.py b/bumblebee/modules/battery.py
index 021e1eb..a83a2fd 100644
--- a/bumblebee/modules/battery.py
+++ b/bumblebee/modules/battery.py
@@ -20,6 +20,7 @@ class Module(bumblebee.module.Module):
     def data(self):
         with open("/sys/class/power_supply/{}/capacity".format(self._battery)) as f:
             self._capacity = int(f.read())
+        self._capacity = self._capacity if self._capacity < 100 else 100
 
         return "{:02d}%".format(self._capacity)