Wrong end of the stick I am afraid Catorise is one app that, through no fault of it's own, triggers the hildon-desktop bug and thus negatively affects battery life (great app though IMO). Sadly, although a fix is in the SVN version of hildon-desktop (and this provides the basis for the patched debs), it did not make it into pr1.3 Poor show by Nokia IMO given the bugs very detrimental effects.

So, install catorise under pr1.3 you should install the patched hildon-desktop deb linked above.

Don't use catorise, you may not see any problem and the fix is not needed.