Battery life seems pretty good to me so far, I just realized that I forgot to tweak the cpu to my liking though. I like to set the min at 245 on demand and I think I would of gotten some more life out of the ROM, but for everything I did I'm at 13 hours at 20% and that's with me also forgetting to change the network from GSM PRL to CDMA so I think I could of gotten closer to 30% or 35% if I would of done all those things. I will keep using this ROM till the final release