I made my own tweak: A battery percentage line. I put mine on a separate line, but I guess some people would want it at the top with the cpu monitor...

Anyways, here's my addition to conky.conf (I put it before the CPU Usage -line):

It simply outputs the first line from the file /home/user/batterylevel, so no exciting connection to a battery-deamon here. I don't think any of Conky's built in battery commands work.

To make /home/user/batterylevel contain the actual battery level, I made the following shell script:

This one stores the battery charge level in the file /home/user/batterylevel every 120 seconds.

I haven't extensively tested it yet, but it seems to work for me. I also made an init-script for /etc/init.d that launches it at start (you have to symlink it from rc2.d), but I won't start spreading that before I see that there aren't any big problems with this.

Please don't use conky's "exec" to run lshal directly, since both exec and lshal are very resource intensive and will require about 40% cpu all the time just for showing you your battery level!

I would've done this with crontab instead, but there is none and very little information about alternatives that work.