Like I've posted before, I cant think of a way themes could significantly effect batt life. To be sure I went to the source konikub. He confirmed what I was thinking:
Thanks for the info. I am a complete noob so all I know is I have loaded the Roms one by one the same way with no issues and use my phone the same way each day. The battery is just well crappy.
I will go to 1.8 and drop 1.9 red