[ZepticVillager]

I'm getting huge fluctuations in battery life without doing anything actively different. It seems to be at random. I keep WiFi and GPS turned off and I'm not changing any settings. Phone sometimes stays warm while idle and (I assume) asleep, and it can get pretty hot when apps like the music player are running. Battery can run down by as much as 25% in just 1 hour of sitting idle, even after I kill unwanted apps like the music app. Then at other times it only goes down by 1% or 2% with the same level of activity, and the phone stays cool. Battery use stats always show "Android System" using far more battery than anything else. I have not tweaked any of the CPU or performance settings, and I did not have nearly this kind of fluctuation using any of the Froyo roms. Any ideas on what may cause this?