diff --git a/plugins/battery/battery.plugin.sh b/plugins/battery/battery.plugin.sh
index 914a899..47c7621 100644
--- a/plugins/battery/battery.plugin.sh
+++ b/plugins/battery/battery.plugin.sh
@@ -61,7 +61,7 @@ battery_percentage(){
 
   if command_exists upower;
   then
-    local UPOWER_OUTPUT=$(_omb_plugin_battery__upower_print_info | grep percentage | tail --bytes 5)
+    local UPOWER_OUTPUT=$(_omb_plugin_battery__upower_print_info | sed -n 's/.*percentage[:[:blank:]]*\([0-9%]\{1,\}\)$/\1/p')
     echo ${UPOWER_OUTPUT: : -1}
   elif command_exists acpi;
   then