[lemko]

I am experiencing huge power drain on my 650 as well, most of the magic seems to happen during sleep mode.
After purging everything in /opt{0,1} and reinstalling 2.0 it seems to be working fine again.

basically weird stuff started to happen few weeks after installing 2.1, it could drain whole battery overnight,
I flashed back to original Sony firmware and formatted internal memory and sd card, didn't test it though, because vanilla firmware is just unusable :x

then i installed analogus custom 2.1 and it still drained my battery, untill found someone posted it's related to the custom suspend/turn off time option and just disabled power management. suprisingly, apart from occasional forgetting to turn the device off it got much better.

then while after getting newer revision it started to drain in roughly 24hours disregarding any settings fiddling.

Some of this stuff might be subjective since i have no idea how to debug ereaders and i don't fancy running lots of drain trials on my own battery, newerthless, something's wrong here :x

kthx,