Perhaps, or something like it. I didn't put any content in the default conky.conf that was accessible on the status bar, so that's why there's no battery info in it at the moment.
The other thing is that I'm not sure the way Jaysire's doing it at the moment is ideal, because that value from lshal doesn't seem to change during charging, and only updates a few seconds after the charger is unplugged. Perhaps some more logic is required in the helper script to determine charging status and report something slightly different through conky.
${color yellow}Battery:$color ${goto 110}${color red}${execi 30 if [ "`hal-device bme |grep "is_charging\|is_discharging" |awk '{print $3;}' |sed -e :a -e '$!N;s/\n/ /;ta'`" = "false true" ]; then echo "Charging!"; fi}$color${goto 310}${execi 30 hal-device bme |grep "percentage" |awk '{print $3;}'}%${goto 350}${color green}${execibar 30 hal-device bme |grep "percentage" |awk '{print $3;}'} .