I have noticed this too. I went from the latest official ROM to a build of the PPCGeeks kitchen ROM. I have the same setup, apps and usage patterns. At first, I thought it was just my imagination. But after longer use, I definitely noticed less battery life during normal daily operation. I was surprised because I figured the custom roms had battery tweaks. I'm glad to see others notice this and mention it. Not many people want to admit that sometimes the changes and tweaks made in these roms have possible repercussions on battery life. This is definetly NOT a imagined effect. Future revisions of the rom may have become better (i need to update) but there is definitely a decrease in battery life with all the same settings and brightness.
I don't use TouchFlo 2D or anything intensive. I figured it must have been due to some performance tweaks that possibly caused the power to drain quicker. IMO, battery life is more important than the very marginal speed and free RAM increase that some of these Roms offer. I always leave my BT on because I use the headset often to talk even when I'm at home. The changes to the BT in the custom rom may improve performance/quality but increase its drain on the battery. This could be the culprit too and it seems most likely. I'm considering switching back to stock rom for more reliable battery life.
Sadly, it looks like battery life with the Touch Pro is even more of an issue. Apparently, it drains even faster than the mogul.
