new file mode 100644

@@ -0,0 +1,20 @@

+if [[ $(acpi 2&>/dev/null | grep -c '^Battery.*Discharging') -gt 0 ]] ; then

+  function battery_pct_remaining() { echo "$(acpi | cut -f2 -d ',' | tr -cd '[:digit:]')" }

+  function battery_time_remaining() { echo $(acpi | cut -f3 -d ',') }

+  function battery_pct_prompt() {

+    b=$(battery_pct_remaining)

+    if [ $b -gt 50 ] ; then

+      color='green'

+    elif [ $b -gt 20 ] ; then

+      color='yellow'

+    else

+      color='red'

+    fi

+    echo "%{$fg[$color]%}[$(battery_pct_remaining)%%]%{$reset_color%}"

+  }

+else

+  error_msg='no battery'

+  function battery_pct_remaining() { echo $error_msg }

+  function battery_time_remaining() { echo $error_msg }

+  function battery_pct_prompt() { echo '' }

+fi