My wife and I both got our phone at the same time. Friday we got new 1500mah batterys. We both turned off our phones charged them full and took them off the chargers the following morning. I got over 14 hours of up time with about 3 hours of awake time before I put mine on the charger for the night and lost only 40% of my battery, she on the other hand ended up having to charge her battery about 4pm after being off the charger since 7am. She uses her phone more than me but when I checked her awake time it was less than 3hrs. I compared the battery use on both our phones before she put it on the charger and cell stand by, phone idle and display were about the same but her Android system usage was at 30% when my was at 5%. I went though her phone and compared our settings and almost the same, only difference is she's using HTC Sence and i'm using Launcher Pro. Can anyone tell me what might be causing the Android system to be such a battery hog.