Actually, I beg to differ. This ROM had better better life than any other Lollipop ROM out there. It's still pretty bad, but it's better than what other ROMs have to offer.
My advice is to use the stock kernel, use airplane mode when you are not using your phone, keep auto sync off unless charging, and NEVER reboot, because for some reason the boot up MURDERS the battery (loss of like 10-20%).