While I have seen claims of nine days on the N900 with the radios turned off I go from 100% on a brand new(charged twice) Scud battery to 37% in 13 hours with all radios off and almost no CPU usage.
With GSM and bluetooth on and running panucci audio book over bluetooth headphones for 50% of six hours I also end up at 40% battery.
I have CSSU testing installed and assume that tha would give me the best battery but I have been having this short battery life for months now and it makes the phone almost unusable except at home or office where I can plug in.
What can burn power if the radios and CPU are not the issue?
I am sure there is a tweak I need to use but just dont know how to activate it.
Below is the graph first showing 6 hours with three of panucci audiobook over bluetooth, the second is after a full charge and left unplugged overnight nothing running but battery graph.