I have been keeping track of my usage lately and I am averaging 32.8% Running Time and only 18.4% Screen on Time. I am using spare parts to get these numbers. Thats over a 14% difference so im trying to find out what is causing such a difference. These are the apps i currently have installed. Quick settings shazam ringdroid last fm pandora facebook for android spare parts handcent I also keep GPS, WiFi, and BT off unless I need it. My screen brightness is set at 0 unless im in the sun which i set it at about 50. I have not used pandora, last fm, or my music during this time either. Does anyone have anyclue what might be causing such a difference in scrren on to running time???? My battery life is ok for the most part I usually take it off the charger at about 8:15am and by 9pm im at around 10% I still think my battery should last longer then it is.