fn battremain {
  if (! ~ `{cat /proc/acpi/battery/BAT0/info | sed 's/ //g' | sed 's/present://g'} no && ! ~ `{cat /proc/acpi/ac_adapter/AC/state | sed 's/state://g' | tr ' ' ''} on-line){
	maxcap = `{cat /proc/acpi/battery/BAT0/info | 9 sed -n 's/.*last full capacity:(.*) mAh/\1/p' | 9 tr ' ' ''}
	rate = `{cat /proc/acpi/battery/BAT0/state | 9 sed -n 's/.*present rate:(.*) mA/\1/p' | 9 tr ' ' ''}
	cap = `{cat /proc/acpi/battery/BAT0/state | 9 sed -n 's/.*remaining capacity:(.*) mAh/\1/p' | 9 tr ' ' ''}
	percent = `{echo $maxcap / 100 |bc}
	percent = `{echo $cap / $percent |bc}
	rem = `{echo $cap / $rate |bc -l}
	rem = `{echo $rem | 9 sed 's/(.*)\.(..).*/\1\.\2/g'}
	echo -n 'batt: ' $percent% $rem Hrs
	}
  if (~ `{cat /proc/acpi/ac_adapter/AC/state | sed 's/state://g' | 9 tr ' ' ''} on-line && ! ~ `{cat /proc/acpi/battery/BAT0/info | sed 's/ //g' | sed 's/present://g'} no) {
		maxcap = `{cat /proc/acpi/battery/BAT0/info | 9 sed -n 's/.*last full capacity:(.*) mAh/\1/p' | 9 tr ' ' ''}
		cap = `{cat /proc/acpi/battery/BAT0/state | 9 sed -n 's/.*remaining capacity:(.*) mAh/\1/p' | 9 tr ' ' ''}
		percent = `{echo $maxcap / 100 |bc}
		percent = `{echo $cap / $percent |bc}
		echo -n 'batt: ' Charging, $percent%
		}
  if not
	  echo -n 'batt: ' No battery
}

mkrbar battremain &