diff --git a/suplemon/modules/battery.py b/suplemon/modules/battery.py
index 0df0325..a848b02 100644
--- a/suplemon/modules/battery.py
+++ b/suplemon/modules/battery.py
@@ -1,5 +1,6 @@
 # -*- encoding: utf-8
 
+import os
 import time
 import subprocess
 
@@ -71,7 +72,8 @@ def battery_status_read(self):
     def battery_status_acpi(self):
         """Get the battery status via acpi."""
         try:
-            raw_str = subprocess.check_output(["acpi"])
+            FNULL = open(os.devnull, 'w')
+            raw_str = subprocess.check_output(["acpi"], stdout=FNULL, stderr=FNULL)
         except:
             return None
         raw_str = raw_str.decode("utf-8")
@@ -91,6 +93,7 @@ def battery_status_upower(self):
         except:
             return None
         raw_str = raw_str.decode("utf-8")
+        raw_str = raw_str.splitlines()[0]
         part = helpers.get_string_between("percentage:", "%", raw_str)
         if part:
             try: