diff --git a/plugins/battery.plugin.bash b/plugins/battery.plugin.bash
index db1d6f97..00f283c6 100644
--- a/plugins/battery.plugin.bash
+++ b/plugins/battery.plugin.bash
@@ -24,8 +24,17 @@ battery_percentage(){
   elif command_exists ioreg;
   then
     # http://hints.macworld.com/article.php?story=20100130123935998
-    local IOREG_OUTPUT_10_6=$(ioreg -l | grep -i capacity | tr '\n' ' | ' | awk '{printf("%.2f%%", $10/$5 * 100)}')
-    local IOREG_OUTPUT_10_5=$(ioreg -l | grep -i capacity | grep -v Legacy| tr '\n' ' | ' | awk '{printf("%.2f%%", $14/$7 * 100)}')
+    #local IOREG_OUTPUT_10_6=$(ioreg -l | grep -i capacity | tr '\n' ' | ' | awk '{printf("%.2f%%", $10/$5 * 100)}')
+    #local IOREG_OUTPUT_10_5=$(ioreg -l | grep -i capacity | grep -v Legacy| tr '\n' ' | ' | awk '{printf("%.2f%%", $14/$7 * 100)}')
+    local IOREG_OUTPUT=$(ioreg -n AppleSmartBattery -r | awk '$1~/Capacity/{c[$1]=$3} END{OFMT="%.2f%%"; max=c["\"MaxCapacity\""]; print (max>0? 100*c["\"CurrentCapacity\""]/max: "?")}')
+    case $IOREG_OUTPUT in
+      100*) 
+        echo '99'
+        ;;
+      *)
+        echo $IOREG_OUTPUT | head -c 2
+        ;;
+    esac
   else
     echo "no"
   fi