Comment 8 for bug 1093543

note that there are two daemons running that arent power effective at all (they are shell script and poll from sysfs every second), they are interim solutions to be able to test the behavior of the features. for proper power measuring i would recommend to run:

sudo service luxd stop
sudo service acceld stop

to disable both of them (they will go away if the features are properly implemented in kernel and gnome-settings-daemon)

additionally there seems to be a bug with getty handling the serial gadget (bug 1105068) which will also cause additional battery draining. until this one is fixed, sudo service ttyGS0 should be used to shut it down if you want proper power measuring results.

note that disabling either of the above does not change any of the described behavior (but you will get more accurate battery data with them disabled).