Is there a shortcut to disable 3G phone use or do I need to go to settings everytime I want to use a non wifi data connection? I used the n900 for several weeks without a simcard and got a battery life of aprox 5 days with some Wifi and gps use. No I have the sim installed and only get 20 hours max on it. This is without wifi or gsp, an max 10 min calls and 5 texts. So I assume it has something to do with the phone app being active. I checked the cpu and it is steady at 2.1% and Xorg using 1.7.