Battery Graph showed higher consumption using Ideal settings? FYI the general consensus about 125 MHz is that it actually reduces battery life with well-behaved applications due to the slower race-to-idle (presumably why Nokia didn't use it). The best explanation that fits with both of your observations is that you have something installed and running that doesn't let the processor sleep much (see e.g. http://talk.maemo.org/showthread.php?t=29284). Have you got some kind of CPU load monitor running to check for the culprit?