I added a profilematic action - activate PSM when idle for 10+ mins. Makes it run for 2 days straight as a proper smartphone with medium usage.

For reference my second N900 that I use as alarm clock has managed over 10 days with one charge. The phone is in offline mode all the time. It wakes me up every weekday morning.

We talking here about Nokia N9 ?

Yes, I had the low power screen turned off as I mentioned.

My latest battery usage profile said I went from 99percent to 35 percent in 1 day 16hrs and 14mins. Average idle for me was 13mA. I can usually get almost two days of life out of mine when I use it like I want. I'm always connected to wifi on a daily basis except for commuting. My brightness is all the way up, OC'd to 1200mhz, standby screen on with billboard, meecast updating every hour, and message screen mod to black. I do use it very little for internet because I'm almost always near a real computer, and I don't use it for e-mail. I average about 5 calls a day, and listen to some music at work as well. Battery life dramatically shortens to a little less than 24hrs when I text a lot though. Anyone think it would be a good Idea to use profilematic possibly to change frequencies/current draw depending on battery life and/or usage? Didn't know if it would be negligible or a waste of time. Just a thought though.

6 days is really impressive!

Here it is Wednesday forenoon, my last charge was sunday afternoon and still 15h estimated usage time left.

My N9 is neither new nor empty, but also goes 3 days with "normal" usage. I just set up some rules in Profilematic:

0:00 - 7:00 all Day
PSM, LPS off, kill Wazapp

1:30- 6:00 Su - Th
Flightmode

Idle more than 2h
PSM, LPS off

and i disabled Smartsearch
Browsing, Email, Texting, Calling, Wazapp in a "moderate" rate, means, whenever i'm near a computer, i prefer to use it instead of the phone for Browsing and Email for Example.

What about mail and calendar synchronisation in this case? Would this activate syncing (that did not take place due to PSM) as soon as you unlock the phone?

Yes, when you disable PSM in the default rule.

The phone's documentation says power saving mode entails the following:

• Mail and social network accounts syncing is disabled
• WLAN scanning frequency is reduced
• Internet connections are torn down when not in use
• Display brightness is reduced

All of those can be set individually - is there really no additional effect?

With flight mode it's much clearer what the implied effects are.

The same thing was in Symbian phones. Power saving mode changed couple of things and all of these you could do yourself. I even made a little research with Nokia energy profiler, trying to prove tha PSM disables some system deamons or anything. But energy drain was simply the same as if I would manually disable the things PSM disables.