How to stop the Mediaserver, Cell Standby, and Android System/OS from eating battery?

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http://forum.xda-developers.com – Hey XDA, I've been using AOKP_jb_build1 and r249 of Franco's Nightly Kernel. I've noticed for quite a while that the Mediaserver, CellStandby, and other things of that nature are taking up some battery. What I was wondering is how to reduce this, or if its possible, stop it. I think I would be able to squeeze maybe an hour or two if I resolved some of these battery suckers. Here are my Specs : Galaxy Nexus (VZW LTE), 1850mah., and as I mentioned above, AOKP_jb_build1, and Franco's r249 Nightly. If i said anything wrong/inaccurate please correct me! Thanks! Best Regards, ~Epic (HowTos)